MPI Simulations and stuff
This commit is contained in:
Silas Oettinghaus
195
projects/AWG_characterization/output_power.m
Normal file
195
projects/AWG_characterization/output_power.m
Normal file
@@ -0,0 +1,195 @@
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M=4;
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fdac = 256e9;%fsym;
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fadc = 256e9;
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fsym = ([32:16:240].*1e9);
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%fsym = 160e9;
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% 1) PRBS Generation
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O = 18; %order of prbs
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N = 2^(O-1); %length of prbs
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[~,seed] = prbs(O,1); %initialize first seed of prbs
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bitpattern=[];
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for i = 1:log2(M)
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[bitpattern(:,i),seed] = prbs(O,N,seed);
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end
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if M == 6
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bitpattern = reshape(bitpattern,[],1);
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bitpattern = bitpattern(1:end-mod(length(bitpattern),5));
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end
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% 2 ) Build Inf. signal class
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bits = Informationsignal(bitpattern);
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% 5) AWG (lowpass, quantization, sample and hold)
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kover = 8;
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LP_awg = Filter('filtdegree',4,"f_cutoff",75e9,"fs",fdac*kover,"filterType",filtertypes.butterworth);
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powerlist = [];
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input_papr = zeros(numel(fsym),1);
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output_papr = zeros(numel(fsym),1);
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for i = 1:length(fsym)
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%%%%% Map to PAM %%%%%%
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digimod_out = PAMmapper(M,0).map(bits);
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digimod_out.fs = fsym(i);
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% Y.plot("fignum",2,'displayname',['PAM 4 Signal; Raised Cosine Alpha: ',num2str(rrca)]);
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% X.plot("fignum",2,'displayname',['PAM 4 Signal; Raised Cosine Alpha: ',num2str(rrca)])
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% digimod_out.plot("fignum",2,'displayname',['PAM 4 Signal'])
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%X.spectrum("displayname",['PAM 4; Baudrate: ',num2str(fsym(i).*1e-9), ' GBd', num2str(rrca)],'fignum',4);
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%%%%% AWG %%%%%%
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X = digimod_out;
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X1 = M8199B("kover",kover).process(X);
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X2 = M8199A("kover",kover).process(X);
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X3 = M8196A("kover",kover).process(X);
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% X.spectrum("displayname",['Baudrate: ',num2str(fsym(i).*1e-9), ' GBd'],'fignum',4);
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powerlist1(i) = X1.power;
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vpplist1(i) = max(X1.signal)-min(X1.signal);
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paprlist1(i) = X1.papr_lin;
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powerlist2(i) = X2.power;
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vpplist2(i) = max(X2.signal)-min(X2.signal);
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paprlist2(i) = X2.papr_lin;
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if fsym(i) <= 113e9
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powerlist3(i) = X3.power;
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vpplist3(i) = max(X3.signal)-min(X3.signal);
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paprlist3(i) = X3.papr_lin;
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else
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powerlist3(i) =NaN;
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vpplist3(i) = NaN;
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paprlist3(i) = NaN;
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end
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%%%%% Pulseforming %%%%%%
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rrca=0.3;
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X = Pulseformer("fsym",fsym(i),"fdac",256e9,"pulse","rrc","pulselength",16,"rrcalpha",rrca).process(digimod_out);
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% % %%%%% Clip to PAM range %%%%%%
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min_ = min(digimod_out.signal).*1.3;
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max_ = max(digimod_out.signal).*1.3;
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X.signal = clip(X.signal,min_,max_);
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X1 = M8199B("kover",kover).process(X);
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X2 = M8199A("kover",kover).process(X);
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X = Pulseformer("fsym",fsym(i),"fdac",92e9,"pulse","rrc","pulselength",16,"rrcalpha",rrca).process(digimod_out);
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% % %%%%% Clip to PAM range %%%%%%
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min_ = min(digimod_out.signal).*1.3;
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max_ = max(digimod_out.signal).*1.3;
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X.signal = clip(X.signal,min_,max_);
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X3 = M8196A("kover",kover).process(X);
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powerlist1_opt(i) = X1.power;
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vpplist1_opt(i) = max(X1.signal)-min(X1.signal);
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paprlist1_opt(i) = X1.papr_lin;
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powerlist2_opt(i) = X2.power;
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vpplist2_opt(i) = max(X2.signal)-min(X2.signal);
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paprlist2_opt(i) = X2.papr_lin;
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if fsym(i) <= 113e9
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powerlist3_opt(i) = X3.power;
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vpplist3_opt(i) = max(X3.signal)-min(X3.signal);
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paprlist3_opt(i) = X3.papr_lin;
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else
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powerlist3_opt(i) =NaN;
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vpplist3_opt(i) = NaN;
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paprlist3_opt(i) = NaN;
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end
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end
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cols = linspecer(3);
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figure(6)
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hold on
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scatter(fsym.*1e-9,vpplist1,'DisplayName','M8199B','MarkerFaceColor',cols(1,:),'MarkerEdgeColor',cols(1,:),'LineWidth',2);
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scatter(fsym.*1e-9,vpplist2,'DisplayName','M8199A','MarkerFaceColor',cols(2,:),'MarkerEdgeColor',cols(2,:),'LineWidth',2);
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scatter(fsym.*1e-9,vpplist3,'DisplayName','M8196A','MarkerFaceColor',cols(3,:),'MarkerEdgeColor',cols(3,:),'LineWidth',2);
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xticks(fsym.*1e-9)
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xlabel("Baudrate in GBaud");
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ylabel("Vpp in V")
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legend
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ylim([0.3 1.4])
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thickenfigure;
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figure(7)
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hold on
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scatter(fsym.*1e-9,powerlist1,'DisplayName','M8199B','MarkerFaceColor',cols(1,:),'MarkerEdgeColor',cols(1,:),'LineWidth',2);
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scatter(fsym.*1e-9,powerlist2,'DisplayName','M8199A','MarkerFaceColor',cols(2,:),'MarkerEdgeColor',cols(2,:),'LineWidth',2);
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scatter(fsym.*1e-9,powerlist3,'DisplayName','M8196A','MarkerFaceColor',cols(3,:),'MarkerEdgeColor',cols(3,:),'LineWidth',2);
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xticks(fsym.*1e-9)
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xlabel("Baudrate in GBaud");
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ylabel("Output Power in dBm")
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legend
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ylim([-12 4])
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thickenfigure;
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figure(8)
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hold on
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scatter(fsym.*1e-9,paprlist1,'DisplayName','M8199B','MarkerFaceColor',cols(1,:),'MarkerEdgeColor',cols(1,:),'LineWidth',2);
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scatter(fsym.*1e-9,paprlist2,'DisplayName','M8199A','MarkerFaceColor',cols(2,:),'MarkerEdgeColor',cols(2,:),'LineWidth',2);
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scatter(fsym.*1e-9,paprlist3,'DisplayName','M8196A','MarkerFaceColor',cols(3,:),'MarkerEdgeColor',cols(3,:),'LineWidth',2);
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xticks(fsym.*1e-9)
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xlabel("Baudrate in GBaud");
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ylabel("PAPR linear")
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legend
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ylim([3 10])
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thickenfigure;
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figure(9)
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hold on
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scatter(fsym.*1e-9,vpplist1_opt,'DisplayName','M8199B','Marker','x','MarkerFaceColor',cols(1,:),'MarkerEdgeColor',cols(1,:),'LineWidth',3);
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scatter(fsym.*1e-9,vpplist2_opt,'DisplayName','M8199A','Marker','x','MarkerFaceColor',cols(2,:),'MarkerEdgeColor',cols(2,:),'LineWidth',3);
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scatter(fsym.*1e-9,vpplist3_opt,'DisplayName','M8196A','Marker','x','MarkerFaceColor',cols(3,:),'MarkerEdgeColor',cols(3,:),'LineWidth',3);
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xticks(fsym.*1e-9)
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xlabel("Baudrate in GBaud");
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ylabel("Vpp in V")
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legend
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ylim([0.3 1.4])
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thickenfigure;
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figure(10)
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hold on
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scatter(fsym.*1e-9,powerlist1_opt,'DisplayName','M8199B','Marker','x','MarkerFaceColor',cols(1,:),'MarkerEdgeColor',cols(1,:),'LineWidth',3);
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scatter(fsym.*1e-9,powerlist2_opt,'DisplayName','M8199A','Marker','x','MarkerFaceColor',cols(2,:),'MarkerEdgeColor',cols(2,:),'LineWidth',3);
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scatter(fsym.*1e-9,powerlist3_opt,'DisplayName','M8196A','Marker','x','MarkerFaceColor',cols(3,:),'MarkerEdgeColor',cols(3,:),'LineWidth',3);
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xticks(fsym.*1e-9)
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xlabel("Baudrate in GBaud");
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ylabel("Output Power in dBm")
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legend
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ylim([-12 4])
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thickenfigure;
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figure(11)
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hold on
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scatter(fsym.*1e-9,paprlist1_opt,'DisplayName','M8199B','Marker','x','MarkerFaceColor',cols(1,:),'MarkerEdgeColor',cols(1,:),'LineWidth',3);
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scatter(fsym.*1e-9,paprlist2_opt,'DisplayName','M8199A','Marker','x','MarkerFaceColor',cols(2,:),'MarkerEdgeColor',cols(2,:),'LineWidth',3);
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scatter(fsym.*1e-9,paprlist3_opt,'DisplayName','M8196A','Marker','x','MarkerFaceColor',cols(3,:),'MarkerEdgeColor',cols(3,:),'LineWidth',3);
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xticks(fsym.*1e-9)
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xlabel("Baudrate in GBaud");
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ylabel("PAPR linear")
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legend
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ylim([3 10])
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thickenfigure;
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autoArrangeFigures
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@@ -1,7 +1,4 @@
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vp = wh.parameter.vp.values(2);
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vb = wh.parameter.vb.values(1);
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rop = wh.parameter.rop.values;
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@@ -1,17 +1,17 @@
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%% Settings
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clear
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for M=[4]
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for M=[8]
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filename = '112G_2';
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load_sequence = 0;
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datarate = 448e9;
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datarate = 224e9;
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kover = 8;
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kover = 16;
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fsym = round(datarate*1e-9 / log2(M))*1e9;
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fdac = fsym;%256e9;
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fdac = 256e9;%fsym;
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fadc = 256e9;
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lowpass_cutoff = fsym/2 * 1.1;
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@@ -20,11 +20,11 @@ for M=[4]
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phd_bw = lowpass_cutoff;
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scp_bw = lowpass_cutoff;
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LP_awg = Filter('filtdegree',4,"f_cutoff",75e9,"fs",fdac*kover,"filterType",filtertypes.butterworth);
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LP_modulator= Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.butterworth);
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LP_opt = Filter('filtdegree',3,"f_cutoff",fsym/log2(M).*1.5,"fs",fdac*kover,"filterType",filtertypes.gaussian);
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LP_phd = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.butterworth);
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LP_scpe = Filter('filtdegree',4,"f_cutoff",110e9,"fs",fadc,"filterType",filtertypes.butterworth);
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LP_awg = Filter('filtdegree',4,"f_cutoff",75e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true);
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LP_modulator= Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true);
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LP_opt = Filter('filtdegree',3,"f_cutoff",fsym/log2(M).*1.5,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true);
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LP_phd = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true);
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LP_scpe = Filter('filtdegree',4,"f_cutoff",110e9,"fs",fadc,"filterType",filtertypes.butterworth,"active",true);
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% 1) PRBS Generation
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O = 18; %order of prbs
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@@ -48,15 +48,6 @@ for M=[4]
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digimod_out = PAMmapper(M,0).map(bits);
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digimod_out.fs = fsym;
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% linearGain = 1;
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% limit = 1;
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% SaturatingAmplifier = serdes.SaturatingAmplifier('Mode',1,...
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% 'Limit',limit,'LinearGain',linearGain);
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% X.signal = SaturatingAmplifier(X.signal);
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% X.signal = min(max(X.signal,-0.8),0.8);
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% X = X.normalize("mode","oneone");
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sir = [20:2:36]; %decibel = attenuation of interference path
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laser_linewidth = [1e5 1e6 10e6];
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pn_key = [1:10];
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@@ -64,12 +55,12 @@ for M=[4]
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vb = [1:0.1:1.8];
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rop = 0;
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sir = 28;
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laser_linewidth = 10e6;
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sir = 25;
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laser_linewidth = 0;
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pn_key = 9;
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vp = 0.5;
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vp = 1;%0.5;
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vb = 1;%[1:0.1:1.8];
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mpi_path = 50;
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mpi_path = 0;
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cnt = 1;
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@@ -85,62 +76,14 @@ for M=[4]
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%X = Pulseformer("fsym",fsym,"fdac",fdac,"pulse","rrc","pulselength",16,"rrcalpha",0.05).process(digimod_out);
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X = digimod_out;
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% % precomp
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[b,a] = butter(2,75e9/(fsym/2),"low");
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H=freqz(b,a,length(X),fsym,'whole');
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max_amp_db = 3;
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p = find(abs(H)<10^(-max_amp_db/20));
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H(p) = 10^(-max_amp_db/20);
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H_maxatt = H;
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H_maxatt = max(H,10^(-20/20));
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H_inv = 1./H_maxatt;
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freq_vec = linspace(-X.fs/2,X.fs/2,length(X));
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h = sin(pi*freq_vec/fdac)./(pi*freq_vec/fdac);
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max_amp_db = 40;
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max_amp_lin = 10^(-max_amp_db/20);
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p = find(h<max_amp_lin);
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h(p)=10^(-max_amp_db/20);
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h = 1./h;
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figure(13);
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plot(freq_vec.*1e-9,20*log10(fftshift(H_inv)));
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hold on
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plot(freq_vec.*1e-9,20*log10((h)));
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X.signal = ifft(fftshift(h).'.*fft(X.signal));
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% X.signal = ifft(H_inv.*fft(X.signal));
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figure(12)
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spectrum_plot(X.signal,fsym);
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% 5) AWG (lowpass, quantization, sample and hold)
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X = AWG("fdac",fdac,"dac_min",-1,"dac_max",1,"lpf_active",0,"H_lpf",LP_awg,"kover",kover,"bit_resolution",16,"normalize2dac",1,"upsampling_method","samplehold").process(X);
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spectrum_plot(X.signal,X.fs);
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burg_coeff = arburg(X.signal(10000:20000),100);
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[h,w] = freqz(1,burg_coeff,length(X),"whole",fsym*kover);
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h = h/max(abs(h));
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hold on
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plot(w,20*log10(h),'DisplayName','Burg Coeff');
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spectrum_plot(X.signal,X.fs);
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X = AWG("fdac",fdac,"dac_min",-1,"dac_max",1,"lpf_active",1,"H_lpf",LP_awg,"kover",kover,"bit_resolution",16,"normalize2dac",1,"upsampling_method","samplehold").process(X);
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% 6) Lowpass behavior before laser
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X = LP_modulator.process(X);
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% 7) Normalize signal
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X = X.normalize("mode","oneone");
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% % 7) Normalize signal
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% X = X.normalize("mode","oneone");
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% 1) Laser; Modulation -> OPTICAL DOMAIN
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u_pi = 2;
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@@ -179,12 +122,12 @@ for M=[4]
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Combined_sig.signal = Combined_sig.signal(ceil(dly):end);
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% Fiber
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Combined_sig = Fiber("fsimu",Combined_sig.fs,"fiber_length",2,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.08).process(Combined_sig);
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Combined_sig = Fiber("fsimu",Combined_sig.fs,"fiber_length",0,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.08).process(Combined_sig);
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for i = 1:length(rop)
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% Set ROP
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Rx_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",rop(i)).process(Combined_sig);
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Rx_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",rop(i)).process(Combined_sig);
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rop_save(s,l,pnk,n,m,i) = Rx_sig.power;
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% Square Law
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@@ -204,18 +147,8 @@ for M=[4]
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% Sync Rx signal with reference
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[Scpe_sig,D,cuts] = Scpe_sig.tsynch("reference",digimod_out,"fs_ref",fsym);
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% % % simple EQ (optimum mudc: 0.05 -> 0.005)
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% EQ_sig = EQ_silas_plain("Ne",[20,8,8],"Nb",[2,0,0],"trainlength",4096,"mu_dc_dd",0.005,"mu_dc_train",0.05,...
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% "mu_ffe_train",0.005,"mu_combined_dd",[0.0004 0.0006 0.0003 0.005],"ddloops",3,'trainloops',3,'sps',2).process(Rx_sig,digimod_out);
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% EQ_sig = EQ("K",2,"plottrain",0,"plotfinal",0,...
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% "training_length",4096,"training_loops",3,...
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% "Ne",[50,8,8],"Nb",[2,0,0],...
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% "DCmu",0.005,"DDmu",[0.0004 0.0006 0.0003 0.005],"DFEmu",0.005,"FFEmu",0.00,...
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% "dd_loops",3,"epsilon",[10 100 1000 ],"M",2,...
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% "thres",[0.005 0.004 0.0005 ],"l1act",0,"delay",0,"rho",0.0005,"ideal_dfe",0,"DB_aim",0).process(Scpe_sig,digimod_out);
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|
||||
Scpe_sig.spectrum;
|
||||
[EQ_sig,EQ_sym] = EQ_silas("Ne",[50,8,8],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",0.00,...
|
||||
@@ -227,12 +160,12 @@ for M=[4]
|
||||
"ddloops",3,...
|
||||
"trainloops",3,...
|
||||
"eq_parallelization_blocklength",1, ...
|
||||
"eq_updatelatency",1,...
|
||||
"eq_updatelatency",0,...
|
||||
"eq_avg_blocklength",0).process(Scpe_sig,digimod_out);
|
||||
|
||||
% Demap
|
||||
|
||||
Rx_Bits = PAMmapper(M,0).demap(EQ_sym);
|
||||
Rx_Bits = PAMmapper(M,0).demap(EQ_sig);
|
||||
|
||||
% BER
|
||||
[~,errors_bm,BER(s,l,pnk,n,m,i),errors] = calc_ber(Rx_Bits.signal,bitpattern,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
@@ -240,7 +173,7 @@ for M=[4]
|
||||
formatted_ber = sprintf('%.1e', BER(s,l,pnk,n,m,i));
|
||||
disp(['SIR: ',num2str(sir(s)),'; Lw:',num2str(laser_linewidth(l)),'; Key:',num2str(pn_key(pnk)),'; Vpeak: ',num2str(vp(n)),'; Vbias',num2str(vbias),'; BER: ',formatted_ber,'; run: ',num2str(cnt),' / 12961']);
|
||||
|
||||
plot_analysis_window;
|
||||
% plot_analysis_window;
|
||||
% drawnow;
|
||||
|
||||
end
|
||||
|
||||
28
projects/MPI_August/channel_model_mpi.m
Normal file
28
projects/MPI_August/channel_model_mpi.m
Normal file
@@ -0,0 +1,28 @@
|
||||
function opt_signal = channel_model_mpi(opt_signal,link_total_meter,oneway_interference_meter,sir)
|
||||
|
||||
%%%%% Local Parameter %%%%%%%%
|
||||
|
||||
|
||||
|
||||
%%%%% Ping Pong/ Interference Path %%%%%%
|
||||
interference_sig = Fiber("fsimu",opt_signal.fs,"fiber_length",oneway_interference_meter*2/1000,"alpha",0.3,"D",0,"lambda0",1320,"gamma",0,"Dslope",0.07).process(opt_signal);
|
||||
|
||||
interference_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",-sir).process(interference_sig);
|
||||
|
||||
%%%%% Delay the "main" signal as in reality the interference is "older" than the main signal %%%%%%
|
||||
[main_sig,dly] = opt_signal.delay("delay_meter",oneway_interference_meter*2);
|
||||
|
||||
main_sig.power;
|
||||
interference_sig.power;
|
||||
|
||||
%%%%% ADD Interference and Main Signal %%%%%%
|
||||
combined_sig = main_sig + interference_sig;
|
||||
|
||||
%%%%% Cut (due to the delays there is a jump in the signals) %%%%%%
|
||||
if dly == 0;dly = 1;end
|
||||
combined_sig.signal = combined_sig.signal(ceil(dly):end);
|
||||
|
||||
%%%%% Propagate through fiber %%%%%%
|
||||
opt_signal = Fiber("fsimu",combined_sig.fs,"fiber_length",link_total_meter/1000,"alpha",0.3,"D",0,"lambda0",1320,"gamma",0,"Dslope",0.07).process(combined_sig);
|
||||
|
||||
end
|
||||
206
projects/MPI_August/mpi_uncorrelated.m
Normal file
206
projects/MPI_August/mpi_uncorrelated.m
Normal file
@@ -0,0 +1,206 @@
|
||||
|
||||
%% Parameter to simulate and save
|
||||
params = struct;
|
||||
|
||||
params.M = [4];
|
||||
params.datarate = [224];
|
||||
params.sir = [24]; %decibel = attenuation of interference path
|
||||
params.laser_linewidth = [1e6];
|
||||
params.pn_key = [11];
|
||||
params.vbias_rel = [0.5];
|
||||
params.rop = -5;
|
||||
|
||||
params.clipfactor = [1.5];
|
||||
params.rrcalpha = [0.1];
|
||||
|
||||
name = ['wh_',strrep(num2str(now),'.','')];
|
||||
|
||||
wh = DataStorage(params);
|
||||
|
||||
wh.addStorage("ber");
|
||||
wh.addStorage("rop");
|
||||
wh.addStorage("txpapr");
|
||||
wh.addStorage("er");
|
||||
|
||||
%% Init Params
|
||||
link_length = 10000; %meter
|
||||
|
||||
endcnt = prod(wh.dim);
|
||||
cnt=0;
|
||||
|
||||
disp(['Start Simulation of ',num2str(endcnt),' loops...'])
|
||||
tic
|
||||
for M = wh.parameter.M.values
|
||||
for datarate = wh.parameter.datarate.values
|
||||
for rrcalpha = wh.parameter.rrcalpha.values
|
||||
|
||||
%% SETUP HERE: %%
|
||||
kover = 8;
|
||||
M8199 = M8199A("kover",kover);
|
||||
fdac = M8199.fdac;
|
||||
fsym = round(datarate / log2(M))*1e9;
|
||||
|
||||
Pform = Pulseformer("fsym",fsym,"fdac",4*fsym,"pulse","rrc","pulselength",16,"rrcalpha",rrcalpha);
|
||||
|
||||
% MAIN SIGNAL
|
||||
%%%%% Symbol Generation %%%%%%
|
||||
[Digi_sig,Symbols,Bits] = PAMsource("fsym",fsym,"M",M,"order",18,"useprbs",0,"fs_out",M8199.fdac,"applyclipping",1,"clipfactor",1.3,"applypulseform",1,"pulseformer",Pform,"randkey",2).process();
|
||||
%%%%% AWG %%%%%%
|
||||
El_sig = M8199.process(Digi_sig);
|
||||
El_sig = El_sig.*0.7222;
|
||||
El_sig.signal = awgn(El_sig.signal,20,'measured',1);
|
||||
%%%%% Lowpass before Modulator %%%%%%
|
||||
El_sig = Filter('filtdegree',2,"f_cutoff",100e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true).process(El_sig);
|
||||
El_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",15).process(El_sig);
|
||||
|
||||
|
||||
|
||||
% INTERFERENCE SIGNAL
|
||||
%%%%% Symbol Generation %%%%%%
|
||||
[Digi_sig_i,Symbols_i,Bits_i] = PAMsource("fsym",fsym,"M",M,"order",18,"useprbs",0,"fs_out",M8199.fdac,"applyclipping",1,"clipfactor",1.3,"applypulseform",1,"pulseformer",Pform,"randkey",1).process();
|
||||
%%%%% AWG %%%%%%
|
||||
El_sig_i = M8199.process(Digi_sig_i);
|
||||
El_sig_i = El_sig_i.*0.7222;
|
||||
El_sig_i.signal = awgn(El_sig_i.signal,20,'measured',2);
|
||||
%%%%% Lowpass before Modulator %%%%%%
|
||||
El_sig_i = Filter('filtdegree',2,"f_cutoff",100e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true).process(El_sig_i);
|
||||
El_sig_i = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",15).process(El_sig_i);
|
||||
|
||||
|
||||
for laser_linewidth = wh.parameter.laser_linewidth.values
|
||||
for pn_key = wh.parameter.pn_key.values
|
||||
for vbias_rel = wh.parameter.vbias_rel.values
|
||||
|
||||
|
||||
|
||||
% MAIN SIGNAL
|
||||
%%%%% MODULATE E/O CONVERSION %%%%%%
|
||||
u_pi = 2.9;
|
||||
vbias = -vbias_rel*u_pi;
|
||||
[Opt_sig] = EML("mode",eml_mode.im_cosinus,"power",3,"fsimu",El_sig.fs,"lambda",1290,"bias",vbias,"u_pi",u_pi,"linewidth",laser_linewidth,"randomkey",pn_key).process(El_sig);
|
||||
Optfilter = Filter('filtdegree',6,"f_cutoff",fsym.*0.7,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true);
|
||||
Opt_sig = Optfilter.process(Opt_sig);
|
||||
|
||||
|
||||
% INTERFERENCE SIGNAL
|
||||
%%%%% MODULATE E/O CONVERSION %%%%%%
|
||||
u_pi = 2.9;
|
||||
vbias = -vbias_rel*u_pi;
|
||||
[Opt_sig_i] = EML("mode",eml_mode.im_cosinus,"power",3,"fsimu",El_sig.fs,"lambda",1290,"bias",vbias,"u_pi",u_pi,"linewidth",laser_linewidth,"randomkey",pn_key+1).process(El_sig_i);
|
||||
Opt_sig_i = Optfilter.process(Opt_sig_i);
|
||||
|
||||
|
||||
|
||||
j_ = wh.parameter.sir.length;
|
||||
i_ = wh.parameter.rop.length;
|
||||
ber=zeros(j_,i_);
|
||||
patten=zeros(j_,i_);
|
||||
|
||||
for j = 1:j_
|
||||
sir = wh.parameter.sir.values(j);
|
||||
|
||||
|
||||
%%%%% Interference Signal Fiber Prop %%%%%%
|
||||
Opt_sig_i = Fiber("fsimu",Opt_sig_i.fs,"fiber_length",link_length/1000,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.07).process(Opt_sig_i);
|
||||
|
||||
Opt_sig_i = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",Opt_sig.power-sir).process(Opt_sig_i);
|
||||
|
||||
%%%%% ADD Interference and Main Signal %%%%%%
|
||||
Opt_sig = Opt_sig_i + Opt_sig;
|
||||
|
||||
%%%%% Interference Signal Fiber Prop %%%%%%
|
||||
Opt_sig = Fiber("fsimu",Opt_sig.fs,"fiber_length",link_length/1000,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.07).process(Opt_sig);
|
||||
|
||||
|
||||
% % MPI Channel
|
||||
% Opt = channel_model_mpi(Opt_sig,link_length,mpi_path,sir);
|
||||
|
||||
% Receiver ROP curve
|
||||
for i = 1:i_
|
||||
rop=wh.parameter.rop.values(i);
|
||||
|
||||
% Set ROP
|
||||
Rx_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",rop).process(Opt_sig);
|
||||
patten(j,i) = Rx_sig.power;
|
||||
|
||||
%%%%%% Square Law %%%%%%
|
||||
Rx_sig = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20).process(Rx_sig);
|
||||
|
||||
%%%%%% Lowpass PhDiode %%%%%%
|
||||
Rx_sig = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true).process(Rx_sig);
|
||||
% Rx_sig.spectrum("displayname","Received Signal after PhD","fignum",201);
|
||||
|
||||
|
||||
%%%%%% Scope %%%%%%
|
||||
fadc = 256e9;
|
||||
Lp_scpe = Filter('filtdegree',4,"f_cutoff",63e9,"fs",fadc,"filterType",filtertypes.butterworth,"active",true);
|
||||
Scpe_sig = Scope("fsimu",fdac*kover,"fadc",fadc,...
|
||||
"delay",0,"fixed_delay",0,"filtertype",filtertypes.butterworth,...
|
||||
"samplingdelay",0,"rand_samplingdelay",0,"freq_offset",0,"samp_jitter",0,...
|
||||
"adcresolution",16,"quantbuffer",0.1,'block_dc',1,'lpf_active',1,'H_lpf',Lp_scpe).process(Rx_sig);
|
||||
Scpe_sig.plot("displayname","SIgnal after Scope","fignum",999);
|
||||
|
||||
%%%%%% Sample to 2x fsym %%%%%%
|
||||
Scpe_sig = Scpe_sig.resample("fs_in",fadc,"fs_out",2*fsym);
|
||||
|
||||
%%%%%% Sync Rx signal with reference %%%%%%
|
||||
[Scpe_sig,D,cuts] = Scpe_sig.tsynch("reference",Symbols,"fs_ref",fsym);
|
||||
|
||||
%%%%% EQUALIZE %%%%%%
|
||||
% Eq = FFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",0);
|
||||
|
||||
% Eq = FFE_DFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"ffe_mu_dd",1e-4,"dfe_mu_dd",5e-4,"ffe_mu_tr",0,"dfe_mu_tr",0,"ffe_order",25,"dfe_order",2,"sps",2,"decide",1);
|
||||
|
||||
% Eq = EQ("Ne",[25,3,3],"Nb",[0,0,0],"training_length",4096,"training_loops",4,"dd_loops",4,"K",2,"DCmu",0,"DDmu",[0.0004 0.0004 0.0004 0.0004 ],"DFEmu",0.005,"FFEmu",0,"plotfinal",1);
|
||||
|
||||
Eq = VNLE("epochs_tr",7,"epochs_dd",7,"len_tr",4096,"mu_dd",[0.0004 0.0005 0.0006],"mu_tr",0,"order",[25,3,3],"sps",2,"decide",0);
|
||||
[EQ_sig] = Eq.process(Scpe_sig,Symbols);
|
||||
|
||||
% EQ_sig.normalize("mode","rms").plot('fignum',23,'displayname','before eq')
|
||||
|
||||
|
||||
%%%%% DEMAP %%%%%%
|
||||
Rx_bits = PAMmapper(M,0).demap(EQ_sig);
|
||||
|
||||
%%%% Look at Pam levels %%%%%
|
||||
if 1
|
||||
a = PAMmapper(M,0).separate_pamlevels(EQ_sig);
|
||||
figure(14);hold on;scatter(1:EQ_sig.length,a,1,'.');
|
||||
end
|
||||
|
||||
% BER
|
||||
[~,errors_bm,ber(j,i),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
|
||||
cnt = cnt+1;
|
||||
disp(['BER: ',sprintf('%.1E',ber(j,i)),' - - ROP: ',num2str(Rx_sig.power),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
|
||||
|
||||
|
||||
end
|
||||
end
|
||||
|
||||
for j = 1:j_
|
||||
sir = wh.parameter.sir.values(j);
|
||||
for i = 1:i_
|
||||
rop=wh.parameter.rop.values(i);
|
||||
wh.addValueToStorage(ber(j,i),'ber',M,datarate,sir,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
|
||||
wh.addValueToStorage(patten(j,i),'rop',M,datarate,sir,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
|
||||
wh.addValueToStorage(er,'er',M,datarate,sir,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
|
||||
end
|
||||
toc
|
||||
disp(['Simulated: ',num2str(cnt/endcnt*100),' %']);
|
||||
save(['C:\Users\Silas\Documents\MATLAB\imdd_simulation\projects\MPI_Juni\',name,'.mat'],"wh");
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
45
projects/MPI_August/rx_model.m
Normal file
45
projects/MPI_August/rx_model.m
Normal file
@@ -0,0 +1,45 @@
|
||||
function rx_bits = rx_model(Rx,Ref,Phdiod,Lp_phdiod,Scpe,Eq,Pmap)
|
||||
|
||||
%%%%% Local Parameter %%%%%%%%
|
||||
fsym = Ref.fs;
|
||||
|
||||
|
||||
%%%%%% Square Law %%%%%%
|
||||
Rx_sig = Phdiod.process(Rx);
|
||||
|
||||
%%%%%% Lowpass PhDiode %%%%%%
|
||||
Rx_sig = Lp_phdiod.process(Rx_sig);
|
||||
% Rx_sig.spectrum("displayname","Received Signal after PhD","fignum",201);
|
||||
|
||||
|
||||
%%%%%% Scope %%%%%%
|
||||
Scpe_sig = Scpe.process(Rx_sig);
|
||||
Scpe_sig.plot("displayname","SIgnal after Scope","fignum",1999);
|
||||
% Scpe_sig.spectrum("displayname",'after scope','fignum',123);
|
||||
|
||||
|
||||
%%%%%% Sample to 2x fsym %%%%%%
|
||||
Scpe_sig = Scpe_sig.resample("fs_in",Scpe.fadc,"fs_out",2*fsym);
|
||||
% Scpe_sig.plot('fignum',12345,'displayname','bla')
|
||||
|
||||
|
||||
%%%%%% Sync Rx signal with reference %%%%%%
|
||||
[Scpe_sig,D,cuts] = Scpe_sig.tsynch("reference",Ref,"fs_ref",fsym);
|
||||
|
||||
|
||||
%%%%% EQUALIZE %%%%%%
|
||||
[EQ_sig] = Eq.process(Scpe_sig,Ref);
|
||||
% EQ_sig.normalize("mode","rms").plot('fignum',23,'displayname','before eq')
|
||||
|
||||
|
||||
%%%%% DEMAP %%%%%%
|
||||
rx_bits = Pmap.demap(EQ_sig);
|
||||
|
||||
%%%% Look at Pam levels %%%%%
|
||||
if 1
|
||||
a = Pmap.separate_pamlevels(EQ_sig);
|
||||
figure(14);hold on;scatter(1:EQ_sig.length,a,1,'.');
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
66
projects/MPI_August/tx_model.m
Normal file
66
projects/MPI_August/tx_model.m
Normal file
@@ -0,0 +1,66 @@
|
||||
|
||||
function [el_sig,bits,symbol_seq] = tx_model(fsym,Pmap,Pform,Awg,options)
|
||||
|
||||
arguments
|
||||
fsym
|
||||
Pmap
|
||||
Pform
|
||||
Awg
|
||||
options.clipfactor
|
||||
end
|
||||
|
||||
%%%%% Local Parameter %%%%%%%%
|
||||
|
||||
|
||||
%%%%% PRBS Generation in correct shape for Modulation Format %%%%%%
|
||||
O = 17; %order of prbs
|
||||
N = 2^(O-1); %length of prbs
|
||||
[~,seed] = prbs(O,1); %initialize first seed of prbs
|
||||
bitpattern=[];
|
||||
for i = 1:log2(Pmap.M)
|
||||
[bitpattern(:,i),seed] = prbs(O,N,seed);
|
||||
end
|
||||
|
||||
if Pmap.M == 6
|
||||
bitpattern = reshape(bitpattern,[],1);
|
||||
bitpattern = bitpattern(1:end-mod(length(bitpattern),5));
|
||||
end
|
||||
|
||||
bits = Informationsignal(bitpattern);
|
||||
|
||||
%%%%% Map to PAM %%%%%%
|
||||
symbol_seq = Pmap.map(bits);
|
||||
symbol_seq.fs = fsym;
|
||||
|
||||
|
||||
|
||||
%%%%% Pulseforming %%%%%%
|
||||
if 1
|
||||
X = Pform.process(symbol_seq);
|
||||
else
|
||||
X = symbol_seq;
|
||||
end
|
||||
|
||||
%%%%% Resample to f DAC %%%%%%
|
||||
X = X.resample("fs_in",X.fs,"fs_out",Awg.fdac,"n",10,"beta",5);
|
||||
|
||||
%%%%% Clip to PAM range %%%%%%
|
||||
if 1
|
||||
min_ = min(symbol_seq.signal) * options.clipfactor ;
|
||||
max_ = max(symbol_seq.signal) * options.clipfactor ;
|
||||
X.signal = clip(X.signal,min_,max_);
|
||||
end
|
||||
|
||||
%%%%%Info about AWG input %%%%%%
|
||||
pwr_ = X.power; % in dbm into 50 ohm
|
||||
papr_ = papr(X.signal);
|
||||
vpk_ = max(abs(X.signal));
|
||||
vswing_ = max(X.signal)-min(X.signal);
|
||||
awg_string = ['Digital AWG Input: Pout: ',num2str(round(pwr_,2)),' dBm; PAPR: ',num2str(round(papr_,2)),'; Vpk: ',num2str(round(vpk_,2)),'; Vswing: ',num2str(round(vswing_,2)),''];
|
||||
% isp(awg_string);
|
||||
|
||||
%%%%% AWG %%%%%%
|
||||
el_sig = Awg.process(X);
|
||||
el_sig= el_sig.*0.7222;
|
||||
|
||||
end
|
||||
99
projects/MPI_Juni/EQ_optimization/eq_optimization.m
Normal file
99
projects/MPI_Juni/EQ_optimization/eq_optimization.m
Normal file
@@ -0,0 +1,99 @@
|
||||
|
||||
clear
|
||||
Ref = load("C:\Users\Silas\Documents\MATLAB\imdd_simulation\projects\MPI_Juni\EQ_optimization\ref_sig_with_mpi.mat",'Ref');
|
||||
Rx_sig = load("C:\Users\Silas\Documents\MATLAB\imdd_simulation\projects\MPI_Juni\EQ_optimization\rx_sig_with_mpi.mat",'Rx_sig');
|
||||
Bits = load("C:\Users\Silas\Documents\MATLAB\imdd_simulation\projects\MPI_Juni\EQ_optimization\ref_bits_prms.mat","Bits");
|
||||
|
||||
M = 4;
|
||||
Ref = Ref.Ref;
|
||||
Rx_sig = Rx_sig.Rx_sig;
|
||||
Bits = Bits.Bits;
|
||||
|
||||
kover = 8;
|
||||
fdac = 256e9;
|
||||
fadc = 160e9;
|
||||
|
||||
Lp_phd = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true);
|
||||
|
||||
Lp_scpe = Filter('filtdegree',4,"f_cutoff",63e9,"fs",fadc,"filterType",filtertypes.butterworth,"active",true);
|
||||
|
||||
Scp = Scope("fsimu",fdac*kover,"fadc",fadc,...
|
||||
"delay",0,"fixed_delay",0,"filtertype",filtertypes.butterworth,...
|
||||
"samplingdelay",0,"rand_samplingdelay",0,"freq_offset",0,"samp_jitter",0,...
|
||||
"adcresolution",16,"quantbuffer",0.1,'block_dc',1,'lpf_active',1,'H_lpf',Lp_scpe);
|
||||
|
||||
fadc = Scp.fadc;
|
||||
|
||||
% SETUP TX Model
|
||||
Pmap = PAMmapper(M,0);
|
||||
|
||||
% SETUP RX Model
|
||||
Phd = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20);
|
||||
|
||||
% Eq = EQ_silas_ofc("Ne",[50,2,2],"Nb",[2,0,0],"trainlength",4096,...
|
||||
% "sps",2,...
|
||||
% "mu_dc_dd",[0.5, 0.5, 0.5, 0.5],...
|
||||
% "mu_dc_train",0.0,...
|
||||
% "mu_ffe_train",0.00,...
|
||||
% "mu_dfe_train",0.005,...
|
||||
% "mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
% "mu_dfe_dd",0.005,...
|
||||
% "ddloops",3,...
|
||||
% "trainloops",4,...
|
||||
% "eq_parallelization_blocklength",0, ...
|
||||
% "eq_updatelatency",1,...
|
||||
% "eq_avg_blocklength",0);
|
||||
|
||||
|
||||
if 0
|
||||
Eq = EQ("Ne",[21,4,4],"Nb",[0,0,0],"training_length",4096,"training_loops",4,"dd_loops",4,"K",2,"DCmu",0,"DDmu",[0.0004 0.0005 0.0006 0.0003 ],"DFEmu",0.000,"FFEmu",0,"plotfinal",0,"ideal_dfe",0);
|
||||
|
||||
|
||||
% % RX Model
|
||||
Rx_bits = rx_model(Rx_sig,Ref,Phd,Lp_phd,Scp,Eq,Pmap);
|
||||
|
||||
% % BER
|
||||
[~,errors_bm,ber,errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
|
||||
disp(['BER: ',sprintf('%.1E',ber),' - - ROP: ',num2str(Rx_sig.power),'dBm - - PAM-',num2str(M),' - - ']);
|
||||
end
|
||||
|
||||
%%%%% Local Parameter %%%%%%%%
|
||||
fsym = Ref.fs;
|
||||
|
||||
%%%%%% Square Law %%%%%%
|
||||
Rx_sig = Phd.process(Rx_sig);
|
||||
|
||||
%%%%%% Lowpass PhDiode %%%%%%
|
||||
Rx_sig = Lp_phd.process(Rx_sig);
|
||||
% Rx_sig.spectrum("displayname","Received Signal after PhD","fignum",201);
|
||||
|
||||
%%%%%% Scope %%%%%%
|
||||
Scpe_sig = Scp.process(Rx_sig);
|
||||
% Scpe_sig.spectrum("displayname",'after scope','fignum',123);
|
||||
|
||||
%%%%%% Sample to 2x fsym %%%%%%
|
||||
Scpe_sig = Scpe_sig.resample("fs_in",Scp.fadc,"fs_out",2*fsym);
|
||||
% Scpe_sig.plot('fignum',12345,'displayname','bla')
|
||||
|
||||
%%%%%% Sync Rx signal with reference %%%%%%
|
||||
[Scpe_sig,D,cuts] = Scpe_sig.tsynch("reference",Ref,"fs_ref",fsym);
|
||||
|
||||
|
||||
|
||||
Scpe_sig = Scpe_sig.normalize("mode","rms");
|
||||
|
||||
|
||||
Eq = FFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",20,"sps",2,"decide",1);
|
||||
% Eq = FFE_DFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"ffe_mu_dd",1e-4,"dfe_mu_dd",5e-4,"ffe_mu_tr",0,"dfe_mu_tr",0,"ffe_order",21,"dfe_order",0,"sps",2,"decide",1);
|
||||
% Eq = VNLE("epochs_tr",7,"epochs_dd",7,"len_tr",4096,"mu_dd",[0.0004 0.0005 0.0006],"mu_tr",0,"order",[21,5,5],"sps",2,"decide",1);
|
||||
|
||||
Eq_sig = Eq.process(Scpe_sig,Ref);
|
||||
|
||||
Rx_bits = Pmap.demap(Eq_sig);
|
||||
|
||||
% BER
|
||||
[~,errors_bm,ber,errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
|
||||
disp(['BER: ',sprintf('%.1E',ber),' - - ROP: ',num2str(Rx_sig.power),'dBm - - PAM-',num2str(M),' - - ']);
|
||||
|
||||
BIN
projects/MPI_Juni/EQ_optimization/ref_bits_prms.mat
Normal file
BIN
projects/MPI_Juni/EQ_optimization/ref_bits_prms.mat
Normal file
Binary file not shown.
BIN
projects/MPI_Juni/EQ_optimization/ref_sig_with_mpi.mat
Normal file
BIN
projects/MPI_Juni/EQ_optimization/ref_sig_with_mpi.mat
Normal file
Binary file not shown.
BIN
projects/MPI_Juni/EQ_optimization/rx_sig_with_mpi.mat
Normal file
BIN
projects/MPI_Juni/EQ_optimization/rx_sig_with_mpi.mat
Normal file
Binary file not shown.
46
projects/MPI_Juni/ber_curve.m
Normal file
46
projects/MPI_Juni/ber_curve.m
Normal file
@@ -0,0 +1,46 @@
|
||||
function ber_curve(wh,options)
|
||||
arguments
|
||||
wh
|
||||
options.DisplayName = '';
|
||||
end
|
||||
|
||||
M = wh.parameter.M.values(1);
|
||||
datarate = wh.parameter.datarate.values;
|
||||
sir = wh.parameter.sir.values(1);
|
||||
laser_linewidth = wh.parameter.laser_linewidth.values(1);
|
||||
pn_key = wh.parameter.pn_key.values(1);
|
||||
vbias_rel = wh.parameter.vbias_rel.values(1);
|
||||
rop = wh.parameter.rop.values;
|
||||
clipfactor = wh.parameter.clipfactor.values;
|
||||
rrcalpha = wh.parameter.rrcalpha.values(1);
|
||||
|
||||
cols = linspecer(numel(datarate));
|
||||
|
||||
cnt = 0;
|
||||
for dr = datarate
|
||||
cnt = cnt+1;
|
||||
bers = wh.getStoValue('ber',M,dr,sir,laser_linewidth,pn_key,vbias_rel,rop,clipfactor, rrcalpha);
|
||||
rops = wh.getStoValue('rop',M,dr,sir,laser_linewidth,pn_key,vbias_rel,rop,clipfactor, rrcalpha);
|
||||
ers = unique(wh.getStoValue('er',M,dr,sir,laser_linewidth,pn_key,vbias_rel,rop,clipfactor, rrcalpha));
|
||||
|
||||
if 1 %isempty(options.DisplayName)
|
||||
dn = ['M: ',num2str(M),'; Rate: ',num2str(dr),'; Vbias rel: ',num2str(vbias_rel), '; ER: ', num2str(ers)];
|
||||
else
|
||||
dn = options.DisplayName;
|
||||
end
|
||||
|
||||
% Create the initial plot
|
||||
figure(43);
|
||||
hold on; % Retain the plot so new points can be added without complete redraw
|
||||
plot(rops,bers,"LineWidth",1,"LineStyle","--","Marker",".","MarkerSize",10,"DisplayName",string(dn),'Color',cols(cnt,:));
|
||||
|
||||
end
|
||||
yline(3.8e-3,'DisplayName','HD-FEC');
|
||||
xlabel('Received Optical Power (dBm)');
|
||||
ylabel('Bit Error Rate (BER)');
|
||||
title('Bit Error Rate vs. Received Optical Power');
|
||||
set(gca,'yscale','log');
|
||||
grid on;
|
||||
legend
|
||||
|
||||
end
|
||||
Binary file not shown.
Binary file not shown.
Binary file not shown.
Binary file not shown.
BIN
projects/MPI_Juni/ber_vs_er/ber_vs_er_pam4_withMPI.mat
Normal file
BIN
projects/MPI_Juni/ber_vs_er/ber_vs_er_pam4_withMPI.mat
Normal file
Binary file not shown.
44
projects/MPI_Juni/ber_vs_er/tx_signal_curve.m
Normal file
44
projects/MPI_Juni/ber_vs_er/tx_signal_curve.m
Normal file
@@ -0,0 +1,44 @@
|
||||
function tx_signal_curve(wh,options)
|
||||
arguments
|
||||
wh
|
||||
options.DisplayName = '';
|
||||
end
|
||||
|
||||
M = wh.parameter.M.values(1);
|
||||
datarate = wh.parameter.datarate.values(1);
|
||||
sirs = wh.parameter.sir.values(1);
|
||||
mpi_len = wh.parameter.mpi_pathlen.values(1);
|
||||
laser_linewidths = wh.parameter.laser_linewidth.values(1);
|
||||
pn_key = wh.parameter.pn_key.values;
|
||||
vbias_rel = wh.parameter.vbias_rel.values(1);
|
||||
rop = wh.parameter.rop.values(1);
|
||||
clipfactor = wh.parameter.clipfactor.values;
|
||||
rrcalpha = wh.parameter.rrcalpha.values(1);
|
||||
% Create the initial plot
|
||||
figure(4);
|
||||
cols = linspecer(6);
|
||||
cnt = 0;
|
||||
|
||||
|
||||
bers(:) = wh.getStoValue('ber',M,datarate,sirs,mpi_len,laser_linewidths,pn_key,vbias_rel,rop,clipfactor, rrcalpha);
|
||||
ers(:) = wh.getStoValue('er',M,datarate,sirs,mpi_len,laser_linewidths,pn_key,vbias_rel,rop,clipfactor, rrcalpha);
|
||||
|
||||
dn = ['M: ',num2str(M),'; Rate: ',num2str(datarate),'; SIR ',num2str(sirs), 'dB; lw: ',num2str(laser_linewidths.*1e-6),' MHz'];
|
||||
|
||||
hold on; % Retain the plot so new points can be added without complete redraw
|
||||
% scatter(clipfactor,bers,"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(cnt,:),'HandleVisibility','off');
|
||||
yyaxis left
|
||||
plot(clipfactor,bers,"LineWidth",1,"Marker",".","DisplayName",'BER');
|
||||
yline(3.8e-3,'DisplayName','HD-FEC','HandleVisibility','off');
|
||||
set(gca,'yscale','log');
|
||||
grid on;
|
||||
ylim([1e-5,4e-2])
|
||||
|
||||
yyaxis right
|
||||
plot(clipfactor,ers,"LineWidth",1,"Marker",".","DisplayName",'Extinction Ratio in dB');
|
||||
xlabel('Clip Factor');
|
||||
ylabel('Bit Error Rate (BER)');
|
||||
title(['Bit Error Rate vs. Clip Factor: ',dn]);
|
||||
|
||||
legend
|
||||
end
|
||||
BIN
projects/MPI_Juni/clip_optimization/pam4_clipping.fig
Normal file
BIN
projects/MPI_Juni/clip_optimization/pam4_clipping.fig
Normal file
Binary file not shown.
BIN
projects/MPI_Juni/clip_optimization/pam6_clipping.fig
Normal file
BIN
projects/MPI_Juni/clip_optimization/pam6_clipping.fig
Normal file
Binary file not shown.
BIN
projects/MPI_Juni/clip_optimization/pam8_clipping.fig
Normal file
BIN
projects/MPI_Juni/clip_optimization/pam8_clipping.fig
Normal file
Binary file not shown.
BIN
projects/MPI_Juni/clip_optimization/pam_4_6_8.fig
Normal file
BIN
projects/MPI_Juni/clip_optimization/pam_4_6_8.fig
Normal file
Binary file not shown.
BIN
projects/MPI_Juni/dataset_2506.mat
Normal file
BIN
projects/MPI_Juni/dataset_2506.mat
Normal file
Binary file not shown.
40
projects/MPI_Juni/extrcurve.m
Normal file
40
projects/MPI_Juni/extrcurve.m
Normal file
@@ -0,0 +1,40 @@
|
||||
function ercurve(wh)
|
||||
|
||||
M = wh.parameter.M.values(1);
|
||||
datarate = wh.parameter.datarate.values(1);
|
||||
sir = wh.parameter.sir.values(1);
|
||||
laser_linewidth = wh.parameter.laser_linewidth.values(1);
|
||||
pn_key = wh.parameter.pn_key.values(1);
|
||||
vbias_rel = wh.parameter.vbias_rel.values;
|
||||
rop = wh.parameter.rop.values;
|
||||
clipfactor = wh.parameter.clipfactor.values;
|
||||
rrcalpha = wh.parameter.rrcalpha.values(1);
|
||||
|
||||
|
||||
for vbr = vbias_rel
|
||||
|
||||
bers = wh.getStoValue('ber',M,datarate,sir,laser_linewidth,pn_key,vbr,rop,clipfactor, rrcalpha);
|
||||
rops = wh.getStoValue('rop',M,datarate,sir,laser_linewidth,pn_key,vbr,rop,clipfactor, rrcalpha);
|
||||
ers = unique(wh.getStoValue('er',M,datarate,sir,laser_linewidth,pn_key,vbr,rop,clipfactor, rrcalpha));
|
||||
|
||||
if 1 %isempty(options.DisplayName)
|
||||
dn = ['M: ',num2str(M),'; Rate: ',num2str(datarate),'; Vbias rel: ',num2str(vbr), '; ER: ', num2str(ers)];
|
||||
else
|
||||
dn = options.DisplayName;
|
||||
end
|
||||
|
||||
% Create the initial plot
|
||||
figure(43);
|
||||
hold on; % Retain the plot so new points can be added without complete redraw
|
||||
plot(rops,bers,"LineWidth",1,"LineStyle","--","Marker",".","MarkerSize",10,"DisplayName",string(dn));
|
||||
|
||||
end
|
||||
yline(3.8e-3,'DisplayName','HD-FEC');
|
||||
xlabel('Received Optical Power (dBm)');
|
||||
ylabel('Bit Error Rate (BER)');
|
||||
title('Bit Error Rate vs. Received Optical Power');
|
||||
set(gca,'yscale','log');
|
||||
grid on;
|
||||
legend
|
||||
|
||||
end
|
||||
47
projects/MPI_Juni/linewidth_curve.m
Normal file
47
projects/MPI_Juni/linewidth_curve.m
Normal file
@@ -0,0 +1,47 @@
|
||||
function linewidth_curve(wh,options)
|
||||
arguments
|
||||
wh
|
||||
options.DisplayName = '';
|
||||
end
|
||||
|
||||
M = wh.parameter.M.values(1);
|
||||
datarate = wh.parameter.datarate.values(1);
|
||||
sir = wh.parameter.sir.values(6);
|
||||
mpi_len = wh.parameter.mpi_pathlen.values;
|
||||
laser_linewidth = wh.parameter.laser_linewidth.values;
|
||||
pn_key = wh.parameter.pn_key.values;
|
||||
vbias_rel = wh.parameter.vbias_rel.values(1);
|
||||
rop = wh.parameter.rop.values(1);
|
||||
clipfactor = wh.parameter.clipfactor.values(1);
|
||||
rrcalpha = wh.parameter.rrcalpha.values(1);
|
||||
|
||||
cols = linspecer(numel(mpi_len));
|
||||
% Create the initial plot
|
||||
figure(44);
|
||||
hold on; % Retain the plot so new points can be added without complete redraw
|
||||
for l = 1:numel(mpi_len)
|
||||
|
||||
cnt = 0;
|
||||
for i = 1:numel(laser_linewidth)
|
||||
|
||||
bers(:,i) = wh.getStoValue('ber',M,datarate,sir,mpi_len(l),laser_linewidth(i),pn_key,vbias_rel,rop,clipfactor, rrcalpha);
|
||||
%ers(:,i) = unique(wh.getStoValue('er',M,datarate,sir,mpi_len,laser_linewidth(i),pn_key,vbias_rel,rop,clipfactor, rrcalpha));
|
||||
|
||||
dn = ['Interference Path Length: ',num2str(mpi_len(l)),'m; Rate: ',num2str(datarate)];
|
||||
|
||||
end
|
||||
|
||||
scatter(laser_linewidth.*1e-6,bers,"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(l,:),'HandleVisibility','off');
|
||||
plot(laser_linewidth.*1e-6,mean(bers),"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(l,:),"Color",cols(l,:));
|
||||
|
||||
end
|
||||
ylim([1e-4, 1e-2]);
|
||||
yline(3.8e-3,'DisplayName','HD-FEC');
|
||||
xlabel('Laser Linewidth in MHz');
|
||||
ylabel('Bit Error Rate (BER)');
|
||||
title(['Bit Error Rate vs. Interference Path Length @ SIR ',num2str(sir), 'dB']);
|
||||
set(gca,'yscale','log');
|
||||
grid on;
|
||||
legend
|
||||
|
||||
end
|
||||
245
projects/MPI_Juni/main_simulation.m
Normal file
245
projects/MPI_Juni/main_simulation.m
Normal file
@@ -0,0 +1,245 @@
|
||||
|
||||
%% Parameter to simulate and save
|
||||
params = struct;
|
||||
|
||||
params.M = [4];
|
||||
params.datarate = [224];
|
||||
params.sir = [25]; %decibel = attenuation of interference path
|
||||
params.mpi_pathlen = [50];
|
||||
params.laser_linewidth = [1e6];
|
||||
params.pn_key = [15];
|
||||
params.vbias_rel = [0.5];
|
||||
params.rop = 0;
|
||||
|
||||
params.clipfactor = [1.3];
|
||||
params.rrcalpha = [0.1];
|
||||
|
||||
name = ['wh_',strrep(num2str(now),'.','')];
|
||||
|
||||
wh = DataStorage(params);
|
||||
|
||||
wh.addStorage("ber");
|
||||
wh.addStorage("rop");
|
||||
wh.addStorage("txpapr");
|
||||
wh.addStorage("er");
|
||||
|
||||
%% Init Params
|
||||
link_length = 10000; %meter
|
||||
|
||||
endcnt = prod(wh.dim);
|
||||
cnt=0;
|
||||
|
||||
disp(['Start Simulation of ',num2str(endcnt),' loops...'])
|
||||
tic
|
||||
for M = wh.parameter.M.values
|
||||
for datarate = wh.parameter.datarate.values
|
||||
for rrcalpha = wh.parameter.rrcalpha.values
|
||||
|
||||
%% SETUP HERE: %%
|
||||
kover = 8;
|
||||
Awg = M8199A("kover",kover);
|
||||
fdac = Awg.fdac;
|
||||
fsym = round(datarate / log2(M))*1e9;
|
||||
|
||||
Lp_awg = Filter('filtdegree',4,"f_cutoff",75e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true);
|
||||
Lp_mod = Filter('filtdegree',2,"f_cutoff",100e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true);
|
||||
Lp_opt = Filter('filtdegree',6,"f_cutoff",fsym.*0.7,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true);
|
||||
Lp_phd = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true);
|
||||
|
||||
fadc = 256e9;
|
||||
Lp_scpe = Filter('filtdegree',4,"f_cutoff",63e9,"fs",fadc,"filterType",filtertypes.butterworth,"active",true);
|
||||
|
||||
Scp = Scope("fsimu",fdac*kover,"fadc",fadc,...
|
||||
"delay",0,"fixed_delay",0,"filtertype",filtertypes.butterworth,...
|
||||
"samplingdelay",0,"rand_samplingdelay",0,"freq_offset",0,"samp_jitter",0,...
|
||||
"adcresolution",16,"quantbuffer",0.1,'block_dc',1,'lpf_active',1,'H_lpf',Lp_scpe);
|
||||
|
||||
fadc = Scp.fadc;
|
||||
|
||||
% figure(222)
|
||||
% Lp_awg.showHere;
|
||||
% Lp_mod.showHere;
|
||||
% Lp_opt.showHere;
|
||||
% Lp_phd.showHere;
|
||||
% Lp_scpe.showHere;
|
||||
|
||||
% SETUP TX Model
|
||||
Pmap = PAMmapper(M,0);
|
||||
Pform = Pulseformer("fsym",fsym,"fdac",4*fsym,"pulse","rrc","pulselength",16,"rrcalpha",rrcalpha);
|
||||
|
||||
% SETUP RX Model
|
||||
Phd = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20);
|
||||
|
||||
% Eq = EQ_silas("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
% "sps",2,...
|
||||
% "mu_dc_dd",0.1,...
|
||||
% "mu_dc_train",0.0,...
|
||||
% "mu_ffe_train",0.00,...
|
||||
% "mu_dfe_train",0.005,...
|
||||
% "mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
% "mu_dfe_dd",0.005,...
|
||||
% "ddloops",3,...
|
||||
% "trainloops",4,...
|
||||
% "eq_parallelization_blocklength",0, ...
|
||||
% "eq_updatelatency",0,...
|
||||
% "eq_avg_blocklength",1000);
|
||||
|
||||
% Eq = FFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",0);
|
||||
|
||||
% Eq = FFE_DFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"ffe_mu_dd",1e-4,"dfe_mu_dd",5e-4,"ffe_mu_tr",0,"dfe_mu_tr",0,"ffe_order",25,"dfe_order",2,"sps",2,"decide",1);
|
||||
|
||||
% Eq = EQ_silas_sliding_window_dc_removal("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
% "sps",2,...
|
||||
% "mu_dc_dd",0.05,...
|
||||
% "mu_dc_train",0.05,...
|
||||
% "mu_ffe_train",0,...
|
||||
% "mu_dfe_train",0.005,...
|
||||
% "mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
% "mu_dfe_dd",0.0004,...
|
||||
% "ddloops",4,...
|
||||
% "trainloops",4,...
|
||||
% "eq_blocklength",0,...
|
||||
% "eq_updatelatency",0);
|
||||
|
||||
% Eq = EQ("Ne",[25,3,3],"Nb",[0,0,0],"training_length",4096,"training_loops",4,"dd_loops",4,"K",2,"DCmu",0,"DDmu",[0.0004 0.0004 0.0004 0.0004 ],"DFEmu",0.005,"FFEmu",0,"plotfinal",1);
|
||||
|
||||
Eq = VNLE("epochs_tr",7,"epochs_dd",7,"len_tr",4096,"mu_dd",[0.0004 0.0005 0.0006],"mu_tr",0,"order",[25,3,3],"sps",2,"decide",1);
|
||||
|
||||
for clipfactor = wh.parameter.clipfactor.values
|
||||
% TX model
|
||||
[El,Bits,Ref] = tx_model(fsym,Pmap,Pform,Awg,"clipfactor",clipfactor);
|
||||
|
||||
% Laser and Modulation
|
||||
El = Lp_mod.process(El);
|
||||
El = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",15).process(El);
|
||||
pwr_ = El.power; % in dbm into 50 ohm
|
||||
papr_ = papr(El.signal);
|
||||
vpk_ = max(abs(El.signal));
|
||||
vswing_ = max(El.signal)-min(El.signal);
|
||||
awg_string = ['AWG: Pout: ',num2str(round(pwr_,2)),' dBm (50 Ohm); PAPR: ',num2str(round(papr_,2)),'; Vpk: ',num2str(round(vpk_,2)),' V; Vswing: ',num2str(round(vswing_,2)),' V'];
|
||||
disp(awg_string);
|
||||
|
||||
for laser_linewidth = wh.parameter.laser_linewidth.values
|
||||
for pn_key = wh.parameter.pn_key.values
|
||||
for vbias_rel = wh.parameter.vbias_rel.values
|
||||
|
||||
u_pi = 2.9;
|
||||
vbias = -vbias_rel*u_pi;
|
||||
|
||||
extmodlaser = EML("mode",eml_mode.im_cosinus,"power",3,"fsimu",El.fs,"lambda",1290,"bias",vbias,"u_pi",u_pi,"linewidth",laser_linewidth,"randomkey",pn_key);
|
||||
% El = El.normalize("mode","oneone").*u_pi.*0.4;
|
||||
[modulated,extmodlaser] = extmodlaser.process(El);
|
||||
|
||||
if 1
|
||||
figure(10)
|
||||
hold on
|
||||
scatter(El.signal(1:100000)+vbias,(abs(modulated.signal(1:100000)).^2)*1e3,0.1,'.','DisplayName','Modulator TF')
|
||||
ylim([0 4]);
|
||||
xlim([-u_pi/2, u_pi/2]+vbias);
|
||||
xlabel('Input in V')
|
||||
ylabel('abs(Output) in mW')
|
||||
% Define properties
|
||||
boxPosition = [0.15 0.86 0.2 0.05]; % Position for the first box [x y width height]
|
||||
boxColor = [0.9 0.9 0.9]; % Light grey background color
|
||||
boxEdgeColor = 'k'; % Black edge color
|
||||
boxLineStyle = '--'; % Dashed line style
|
||||
boxFontWeight = 'bold'; % Bold font
|
||||
|
||||
% Create first annotation box for Power
|
||||
annotation('textbox', boxPosition, ...
|
||||
'String', ['V pi: ',num2str(u_pi),' V'], ...
|
||||
'BackgroundColor', boxColor, ...
|
||||
'EdgeColor', boxEdgeColor, ...
|
||||
'LineStyle', boxLineStyle, ...
|
||||
'FontWeight', boxFontWeight, ...
|
||||
'HorizontalAlignment', 'center');
|
||||
|
||||
% Adjust position for the second box (slightly to the right)
|
||||
boxPosition = [0.37 0.86 0.2 0.05]; % Adjusted position
|
||||
|
||||
% Create second annotation box for PAPR
|
||||
annotation('textbox', boxPosition, ...
|
||||
'String', ['V bias: ',num2str(vbias),' V'], ...
|
||||
'BackgroundColor', boxColor, ...
|
||||
'EdgeColor', boxEdgeColor, ...
|
||||
'LineStyle', boxLineStyle, ...
|
||||
'FontWeight', boxFontWeight, ...
|
||||
'HorizontalAlignment', 'center');
|
||||
|
||||
modulated.eye(fsym,M);
|
||||
|
||||
modulated.spectrum("fignum",112,"displayname",'transmit spectrum');
|
||||
|
||||
modulated = Lp_opt.process(modulated);
|
||||
|
||||
end
|
||||
|
||||
er = modulated.extinctionratio(fsym,M);
|
||||
|
||||
if 1
|
||||
|
||||
m_ = wh.parameter.mpi_pathlen.length;
|
||||
j_ = wh.parameter.sir.length;
|
||||
i_ = wh.parameter.rop.length;
|
||||
ber=zeros(m_,j_,i_);
|
||||
patten=zeros(m_,j_,i_);
|
||||
|
||||
for m = 1:m_
|
||||
mpi_path = wh.parameter.mpi_pathlen.values(m);
|
||||
for j = 1:j_
|
||||
sir = wh.parameter.sir.values(j);
|
||||
|
||||
% MPI Channel
|
||||
Opt = channel_model_mpi(modulated,link_length,mpi_path,sir);
|
||||
|
||||
for i = 1:i_
|
||||
rop=wh.parameter.rop.values(i);
|
||||
|
||||
% Set ROP
|
||||
Rx_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",rop).process(Opt);
|
||||
patten(m,j,i) = Rx_sig.power;
|
||||
|
||||
% RX Model
|
||||
Rx_bits = rx_model(Rx_sig,Ref,Phd,Lp_phd,Scp,Eq,Pmap);
|
||||
|
||||
% BER
|
||||
[~,errors_bm,ber(m,j,i),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
|
||||
cnt = cnt+1;
|
||||
disp(['BER: ',sprintf('%.1E',ber(m,j,i)),' - - ROP: ',num2str(Rx_sig.power),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
|
||||
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
for m = 1:m_
|
||||
mpi_path = wh.parameter.mpi_pathlen.values(m);
|
||||
for j = 1:j_
|
||||
sir = wh.parameter.sir.values(j);
|
||||
for i = 1:i_
|
||||
rop=wh.parameter.rop.values(i);
|
||||
wh.addValueToStorage(ber(m,j,i),'ber',M,datarate,sir,mpi_path,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
|
||||
wh.addValueToStorage(patten(m,j,i),'rop',M,datarate,sir,mpi_path,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
|
||||
wh.addValueToStorage(er,'er',M,datarate,sir,mpi_path,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
end
|
||||
|
||||
end
|
||||
toc
|
||||
disp(['Simulated: ',num2str(cnt/endcnt*100),' %']);
|
||||
save(['C:\Users\Silas\Documents\MATLAB\imdd_simulation\projects\MPI_Juni\',name,'.mat'],"wh");
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
56
projects/MPI_Juni/mpilength_curve.m
Normal file
56
projects/MPI_Juni/mpilength_curve.m
Normal file
@@ -0,0 +1,56 @@
|
||||
function mpilength_curve(wh,options)
|
||||
arguments
|
||||
wh
|
||||
options.DisplayName = '';
|
||||
end
|
||||
|
||||
M = wh.parameter.M.values(1);
|
||||
datarate = wh.parameter.datarate.values(2);
|
||||
sirs = wh.parameter.sir.values(1);
|
||||
mpi_len = wh.parameter.mpi_pathlen.values;
|
||||
laser_linewidths = wh.parameter.laser_linewidth.values;
|
||||
pn_key = wh.parameter.pn_key.values;
|
||||
vbias_rel = wh.parameter.vbias_rel.values(1);
|
||||
rop = wh.parameter.rop.values(1);
|
||||
clipfactor = wh.parameter.clipfactor.values(1);
|
||||
rrcalpha = wh.parameter.rrcalpha.values(1);
|
||||
% Create the initial plot
|
||||
figure(4);
|
||||
cols = linspecer(6);
|
||||
cnt = 0;
|
||||
|
||||
for lw = 1:numel(laser_linewidths)
|
||||
laser_linewidth = laser_linewidths(lw);
|
||||
n=ceil(sqrt(wh.parameter.laser_linewidth.length));
|
||||
%subplot(n,n,sp);
|
||||
cnt=cnt+6;
|
||||
for sir = sirs
|
||||
|
||||
for i = 1:numel(mpi_len)
|
||||
|
||||
bers(:,i) = wh.getStoValue('ber',M,datarate,sir,mpi_len(i),laser_linewidth,pn_key,vbias_rel,rop,clipfactor, rrcalpha);
|
||||
% ers(:,i) = unique(wh.getStoValue('er',M,datarate,sir,mpi_len(i),laser_linewidth,pn_key,vbias_rel,rop,clipfactor, rrcalpha));
|
||||
|
||||
dn = ['M: ',num2str(M),'; Rate: ',num2str(datarate),'; SIR ',num2str(sir), 'dB; lw: ',num2str(laser_linewidth.*1e-6),' MHz'];
|
||||
|
||||
end
|
||||
|
||||
|
||||
hold on; % Retain the plot so new points can be added without complete redraw
|
||||
scatter(mpi_len,bers,"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(cnt,:),'HandleVisibility','off');
|
||||
plot(mpi_len,mean(bers),"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(cnt,:),"Color",cols(cnt,:));
|
||||
|
||||
|
||||
end
|
||||
|
||||
yline(3.8e-3,'DisplayName','HD-FEC');
|
||||
xlabel('MPI Path in Meter');
|
||||
ylabel('Bit Error Rate (BER)');
|
||||
title(['Bit Error Rate vs. Interference Path Length; Linewidth: ',num2str(laser_linewidth.*1e-6), ' MHz']);
|
||||
set(gca,'yscale','log');
|
||||
grid on;
|
||||
ylim([1e-5,4e-2])
|
||||
|
||||
end
|
||||
legend
|
||||
end
|
||||
46
projects/MPI_Juni/sir_curve.m
Normal file
46
projects/MPI_Juni/sir_curve.m
Normal file
@@ -0,0 +1,46 @@
|
||||
function sir_curve(wh,options)
|
||||
arguments
|
||||
wh
|
||||
options.DisplayName = '';
|
||||
end
|
||||
|
||||
M = wh.parameter.M.values(1);
|
||||
datarate = wh.parameter.datarate.values(1);
|
||||
sir = wh.parameter.sir.values;
|
||||
laser_linewidth = wh.parameter.laser_linewidth.values(1);
|
||||
pn_key = wh.parameter.pn_key.values;
|
||||
vbias_rel = wh.parameter.vbias_rel.values(1);
|
||||
rop = wh.parameter.rop.values(1);
|
||||
clipfactor = wh.parameter.clipfactor.values;
|
||||
rrcalpha = wh.parameter.rrcalpha.values(1);
|
||||
|
||||
cols = linspecer(numel(pn_key));
|
||||
|
||||
cnt = 0;
|
||||
for pnk = pn_key
|
||||
|
||||
cnt = cnt+1;
|
||||
bers = wh.getStoValue('ber',M,datarate,sir,laser_linewidth,pnk,vbias_rel,rop,clipfactor, rrcalpha);
|
||||
ers = unique(wh.getStoValue('er',M,datarate,sir,laser_linewidth,pnk,vbias_rel,rop,clipfactor, rrcalpha));
|
||||
|
||||
if 1 %isempty(options.DisplayName)
|
||||
dn = ['M: ',num2str(M),'; Rate: ',num2str(datarate),'; Vbias rel: ',num2str(vbias_rel), '; ER: ', num2str(ers)];
|
||||
else
|
||||
dn = options.DisplayName;
|
||||
end
|
||||
|
||||
% Create the initial plot
|
||||
figure(43);
|
||||
hold on; % Retain the plot so new points can be added without complete redraw
|
||||
plot(sir,bers',"LineWidth",1,"LineStyle","-","Marker",".","MarkerSize",10,"DisplayName",string(dn),'Color',cols(cnt,:));
|
||||
|
||||
end
|
||||
yline(3.8e-3,'DisplayName','HD-FEC');
|
||||
xlabel('Signal to Interference Ratio (dB)');
|
||||
ylabel('Bit Error Rate (BER)');
|
||||
title('Bit Error Rate vs. SIR (MPI)');
|
||||
set(gca,'yscale','log');
|
||||
grid on;
|
||||
legend
|
||||
|
||||
end
|
||||
53
projects/MPI_Juni/tx_signal_curve.m
Normal file
53
projects/MPI_Juni/tx_signal_curve.m
Normal file
@@ -0,0 +1,53 @@
|
||||
function tx_signal_curve(wh,options)
|
||||
arguments
|
||||
wh
|
||||
options.DisplayName = '';
|
||||
end
|
||||
|
||||
M = wh.parameter.M.values(1);
|
||||
datarate = wh.parameter.datarate.values(1);
|
||||
sirs = wh.parameter.sir.values(1);
|
||||
mpi_len = wh.parameter.mpi_pathlen.values(1);
|
||||
laser_linewidths = wh.parameter.laser_linewidth.values(1);
|
||||
pn_key = wh.parameter.pn_key.values;
|
||||
vbias_rel = wh.parameter.vbias_rel.values;
|
||||
rop = wh.parameter.rop.values(1);
|
||||
clipfactor = wh.parameter.clipfactor.values;
|
||||
rrcalpha = wh.parameter.rrcalpha.values(1);
|
||||
|
||||
% Create the initial plot
|
||||
figure(4);
|
||||
cols = linspecer(numel(vbias_rel));
|
||||
cnt = 0;
|
||||
|
||||
for vb = vbias_rel
|
||||
|
||||
cnt = cnt+1;
|
||||
bers(:) = wh.getStoValue('ber',M,datarate,sirs,mpi_len,laser_linewidths,pn_key,vb,rop,clipfactor, rrcalpha);
|
||||
ers(:) = wh.getStoValue('er',M,datarate,sirs,mpi_len,laser_linewidths,pn_key,vb,rop,clipfactor, rrcalpha);
|
||||
dn = ['M: ',num2str(M),'; Rate: ',num2str(datarate),'; SIR ',num2str(sirs), 'dB; lw: ',num2str(laser_linewidths.*1e-6),' MHz'];
|
||||
|
||||
hold on; % Retain the plot so new points can be added without complete redraw
|
||||
% scatter(clipfactor,bers,"LineWidth",1,"Marker",".","DisplayName",string(dn),"MarkerEdgeColor",cols(cnt,:),'HandleVisibility','off');
|
||||
plot(clipfactor,bers,"LineWidth",1,"Marker","x",'LineStyle','--',"DisplayName",['Vbias factor: ',num2str(vb)],"Color",cols(cnt,:));
|
||||
yline(3.8e-3,'DisplayName','HD-FEC','HandleVisibility','off');
|
||||
set(gca,'yscale','log');
|
||||
grid on;
|
||||
ylim([1e-5,5e-1])
|
||||
|
||||
xlabel('Clip Factor');
|
||||
ylabel('Bit Error Rate (BER)');
|
||||
title(['Bit Error Rate vs. Clip Factor: ',dn]);
|
||||
|
||||
legend
|
||||
end
|
||||
|
||||
|
||||
% figure(10101)
|
||||
% y = vbias_rel;
|
||||
% x = clipfactor;
|
||||
% [X,Y] = meshgrid(x,y);
|
||||
% Z = bers;
|
||||
% contourf(X,Y,Z,30,'LineStyle','none');
|
||||
|
||||
end
|
||||
BIN
projects/MPI_Juni/wh_first_run.mat
Normal file
BIN
projects/MPI_Juni/wh_first_run.mat
Normal file
Binary file not shown.
124
projects/MPI_analysis_Mai24/base_simulation.m
Normal file
124
projects/MPI_analysis_Mai24/base_simulation.m
Normal file
@@ -0,0 +1,124 @@
|
||||
|
||||
M=4;
|
||||
|
||||
fdac = 256e9;%fsym;
|
||||
fadc = 256e9;
|
||||
fsym = [96:16:256].*1e9;
|
||||
|
||||
%fsym = 160e9;
|
||||
% 1) PRBS Generation
|
||||
O = 18; %order of prbs
|
||||
N = 2^(O-1); %length of prbs
|
||||
[~,seed] = prbs(O,1); %initialize first seed of prbs
|
||||
bitpattern=[];
|
||||
|
||||
for i = 1:log2(M)
|
||||
[bitpattern(:,i),seed] = prbs(O,N,seed);
|
||||
end
|
||||
|
||||
if M == 6
|
||||
bitpattern = reshape(bitpattern,[],1);
|
||||
bitpattern = bitpattern(1:end-mod(length(bitpattern),5));
|
||||
end
|
||||
|
||||
% 2 ) Build Inf. signal class
|
||||
bits = Informationsignal(bitpattern);
|
||||
|
||||
% 3) Digi modulation -> PAM-M signal
|
||||
digimod_out = PAMmapper(M,0).map(bits);
|
||||
|
||||
% 5) AWG (lowpass, quantization, sample and hold)
|
||||
kover = 8;
|
||||
LP_awg = Filter('filtdegree',4,"f_cutoff",75e9,"fs",fdac*kover,"filterType",filtertypes.butterworth);
|
||||
|
||||
powerlist = [];
|
||||
for i = length(fsym):-1:1
|
||||
digimod_out.fs = fsym(i);
|
||||
|
||||
X = Pulseformer("fsym",fsym(i),"fdac",fdac,"pulse","rrc","pulselength",16,"rrcalpha",0.1).process(digimod_out);
|
||||
%X = digimod_out;
|
||||
|
||||
X = AWG("fdac",fdac,"dac_min",-1,"dac_max",1,"lpf_active",1,"H_lpf",LP_awg,"kover",kover,"bit_resolution",5.5,"normalize2dac",1,"upsampling_method","samplehold").process(X);
|
||||
|
||||
|
||||
% 6) Lowpass behavior before laser
|
||||
X = LP_modulator.process(X);
|
||||
|
||||
% 7) Normalize signal
|
||||
X = X.normalize("mode","oneone");
|
||||
|
||||
% 1) Laser; Modulation -> OPTICAL DOMAIN
|
||||
u_pi = 2;
|
||||
vbias = -vb(m);
|
||||
extmodlaser = EML("mode",eml_mode.im_cosinus,"power",3,"fsimu",X.fs,"lambda",1290,"bias",vbias,"u_pi",u_pi,"linewidth",laser_linewidth(l),"randomkey",pn_key(pnk));
|
||||
E = X.*vp(n);
|
||||
|
||||
[Opt,extmodlaser] = extmodlaser.process(E);
|
||||
|
||||
figure(m)
|
||||
hold on
|
||||
scatter(E.signal(1:100000),(abs(Opt.signal(1:100000)).^2)*1e3,0.1,'.','DisplayName','Modulator TF')
|
||||
xlabel('Input in V')
|
||||
ylabel('abs(Output) in mW')
|
||||
|
||||
% ER = 10*log10(max(abs(Opt.signal).^2)/min(abs(Opt.signal).^2));
|
||||
|
||||
Opt = LP_opt.process(Opt);
|
||||
|
||||
cspr(s,l,pnk,n,m) = Opt.cspr;
|
||||
mod_out_pow(s,l,pnk,n,m) = Opt.power;
|
||||
|
||||
% 2) ping pong fiber propagation
|
||||
Interference_sig = Fiber("fsimu",Opt.fs,"fiber_length",mpi_path*2/1000,"alpha",0,"D",0,"lambda0",1310,"gamma",0).process(Opt);
|
||||
|
||||
Interference_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",-sir(s)).process(Interference_sig);
|
||||
|
||||
% In the meantime: delay the main signal
|
||||
[Main_sig,dly] = Opt.delay("delay_meter",mpi_path*2);
|
||||
|
||||
% Add
|
||||
Combined_sig = Main_sig + Interference_sig;
|
||||
|
||||
% Cut (due to the delays there is a jump in the signals)
|
||||
if dly == 0;dly = 1;end
|
||||
Combined_sig.signal = Combined_sig.signal(ceil(dly):end);
|
||||
|
||||
% Fiber
|
||||
Combined_sig = Fiber("fsimu",Combined_sig.fs,"fiber_length",2,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.08).process(Combined_sig);
|
||||
|
||||
|
||||
|
||||
|
||||
powerlist(i)=X.power;
|
||||
|
||||
% Sample to 2x fsym
|
||||
X = X.resample("fs_in",kover*fdac,"fs_out",2*fsym(i));
|
||||
|
||||
% Sync Rx signal with reference
|
||||
[X,D,cuts] = X.tsynch("reference",digimod_out,"fs_ref",fsym(i));
|
||||
|
||||
[EQ_sig,EQ_sym] = EQ_silas("Ne",[50,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",0.00,...
|
||||
"mu_dc_train",0.0,...
|
||||
"mu_ffe_train",0.00,...
|
||||
"mu_dfe_train",0.005,...
|
||||
"mu_ffe_dd",[0.0004 0.0006 0.0003],...
|
||||
"mu_dfe_dd",0.005,...
|
||||
"ddloops",3,...
|
||||
"trainloops",3,...
|
||||
"eq_parallelization_blocklength",1, ...
|
||||
"eq_updatelatency",1,...
|
||||
"eq_avg_blocklength",0).process(X,digimod_out);
|
||||
|
||||
% Demap
|
||||
Rx_Bits = PAMmapper(M,0).demap(EQ_sig);
|
||||
|
||||
% BER
|
||||
[~,errors_bm,BER(i),errors] = calc_ber(Rx_Bits.signal,bitpattern,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
end
|
||||
|
||||
|
||||
figure()
|
||||
stem(fsym.*1e-9,powerlist);
|
||||
xticks(fsym.*1e-9)
|
||||
247
projects/MPI_analysis_Mai24/eq_compare.m
Normal file
247
projects/MPI_analysis_Mai24/eq_compare.m
Normal file
@@ -0,0 +1,247 @@
|
||||
|
||||
%clear;
|
||||
col = linspecer(6);
|
||||
|
||||
% GENERATE SIR CURVE
|
||||
if ismac
|
||||
foldername = '/Users/silasoettinghaus/Documents/MATLAB/Labor_Datensatz_PAM4_MPI/pam4_10km_1km';
|
||||
else
|
||||
foldername = 'C:\Users\Silas\Documents\MATLAB\Datensätze\Labor_Datensatz_PAM4_MPI_OFC2023\pam4_10km_1km';
|
||||
end
|
||||
|
||||
allfiles = dir(foldername);
|
||||
|
||||
eq_updatelatency = 2;
|
||||
eq_avg_blocklength =0;
|
||||
eq_parallelization_blocklength = 92;
|
||||
mudc = 0.01;
|
||||
|
||||
|
||||
eq_ofc = EQ_silas_ofc("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",mudc,...
|
||||
"mu_dc_train",mudc,...
|
||||
"mu_ffe_train",0,...
|
||||
"mu_dfe_train",0.005,...
|
||||
"mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
"mu_dfe_dd",0.005,...
|
||||
"ddloops",3,...
|
||||
"trainloops",4,...
|
||||
"eq_parallelization_blocklength",eq_parallelization_blocklength, ...
|
||||
"eq_updatelatency",eq_updatelatency,...
|
||||
"eq_avg_blocklength",eq_avg_blocklength);
|
||||
|
||||
eq_normal = EQ_silas_ofc("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",0,...
|
||||
"mu_dc_train",0,...
|
||||
"mu_ffe_train",0,...
|
||||
"mu_dfe_train",0.005,...
|
||||
"mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
"mu_dfe_dd",0.005,...
|
||||
"ddloops",3,...
|
||||
"trainloops",4,...
|
||||
"eq_parallelization_blocklength",eq_parallelization_blocklength, ...
|
||||
"eq_updatelatency",eq_updatelatency,...
|
||||
"eq_avg_blocklength",eq_avg_blocklength);
|
||||
|
||||
mudc = 0.01;
|
||||
eq_ff = EQ_silas("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",mudc,...
|
||||
"mu_dc_train",mudc,...
|
||||
"mu_ffe_train",0,...
|
||||
"mu_dfe_train",0.005,...
|
||||
"mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
"mu_dfe_dd",0.005,...
|
||||
"ddloops",3,...
|
||||
"trainloops",4,...
|
||||
"eq_parallelization_blocklength",eq_parallelization_blocklength, ...
|
||||
"eq_updatelatency",eq_updatelatency,...
|
||||
"eq_avg_blocklength",0);
|
||||
|
||||
% [ber_nml,sir_nml,fsym_nml] = sweepSIR(allfiles,eq_normal);
|
||||
% [ber_ofc,sir_ofc,fsym_ofc] = sweepSIR(allfiles,eq_ofc);
|
||||
% [ber_ff,sir_ff,fsym_ff] = sweepSIR(allfiles,eq_ff);
|
||||
|
||||
% plotBerCurve(ber_nml,sir_nml,fsym_nml);
|
||||
% plotBerCurve(ber_ofc,sir_ofc,fsym_ofc);
|
||||
% plotBerCurve(ber_ff,sir_ff,fsym_ff);
|
||||
|
||||
measurementpath = 'C:\Users\Silas\Documents\MATLAB\Datensätze\Labor_Datensatz_PAM4_MPI_OFC2023\pam4_10km_1km\pam4__loop_10_92Gbd_19092023_1508.mat';
|
||||
% measurementpath = findSirAndFsym(allfiles,-30,92e9);
|
||||
measurementpath = 'C:\Users\Silas\Documents\MATLAB\Datensätze\Labor_Datensatz_PAM4_MPI_OFC2023\pam4_10km_1km\pam4__loop_30_92Gbd_19092023_1547.mat';
|
||||
|
||||
% comparePSD(measurementpath)
|
||||
|
||||
% [totalbits,errors,ber_,loc,sir,fsym] = singleBerRun(measurementpath, eq_normal);
|
||||
% [totalbits,errors,ber_,loc,sir,fsym] = singleBerRun(measurementpath, eq_ofc);
|
||||
|
||||
|
||||
[~,~,ber_,~,sir,fsym] = singleBerRun(measurementpath, eq_ff);
|
||||
|
||||
|
||||
mudc_loop = [0, 0.0001,0.0005, 0.001,0.005, 0.01:0.01:0.1, 0.2:0.1:1];
|
||||
|
||||
blocklength = [20:20:200];
|
||||
|
||||
parfor m = 1:length(mudc_loop)
|
||||
eq_ff = EQ_silas("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",mudc_loop(m),...
|
||||
"mu_dc_train",mudc_loop(m),...
|
||||
"mu_ffe_train",0,...
|
||||
"mu_dfe_train",0.005,...
|
||||
"mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
"mu_dfe_dd",0.005,...
|
||||
"ddloops",3,...
|
||||
"trainloops",4,...
|
||||
"eq_parallelization_blocklength",eq_parallelization_blocklength, ...
|
||||
"eq_updatelatency",eq_updatelatency,...
|
||||
"eq_avg_blocklength",100);%blocklength(m));
|
||||
|
||||
[~,~,ber_(m),~,sir(m),fsym(m)] = singleBerRun(measurementpath, eq_ff);
|
||||
end
|
||||
|
||||
figure(2)
|
||||
hold on
|
||||
plot(mudc_loop,ber_,'Marker','o')
|
||||
ylim([1e-4, 1e-2])
|
||||
yline(3.8e-3);
|
||||
set(gca, 'YScale', 'log');
|
||||
set(gca, 'XScale', 'log');
|
||||
|
||||
|
||||
|
||||
function cur_path = findSirAndFsym(allfiles,sir_desired,fsym_desired)
|
||||
for i = 1:length(allfiles)
|
||||
|
||||
if allfiles(i).bytes ~= 0
|
||||
cur_path = [allfiles(i).folder,filesep, allfiles(i).name];
|
||||
recorded_data = load(cur_path);
|
||||
delete(findobj('Type','figure','Name','prms_compare'));
|
||||
else
|
||||
continue
|
||||
end
|
||||
|
||||
sir = recorded_data.saveStructTemp.awg2scope_keysight_state.eigenlight_mpi - 3.3 + 7.2;
|
||||
fsym = recorded_data.saveStructTemp.common.f_sym;
|
||||
|
||||
if abs(sir-sir_desired)<1 && abs(fsym-fsym_desired)<1e9
|
||||
return
|
||||
end
|
||||
end
|
||||
end
|
||||
|
||||
|
||||
function comparePSD(filepath)
|
||||
recorded_data = load(filepath);
|
||||
delete(findobj('Type','figure','Name','prms_compare'));
|
||||
sir = recorded_data.saveStructTemp.awg2scope_keysight_state.eigenlight_mpi - 3.3 + 7.2;
|
||||
fsym = recorded_data.saveStructTemp.common.f_sym;
|
||||
|
||||
spectrum_plot(recorded_data.saveStructTemp.dp_tsynch_out',2*fsym);
|
||||
|
||||
x = recorded_data.saveStructTemp.dp_tsynch_out';
|
||||
|
||||
pwelch(x,hamming(length(x)),[],length(x),2*fsym,"centered","power");
|
||||
|
||||
periodogram(x,hamming(length(x)),length(x),"centered","psd");
|
||||
|
||||
end
|
||||
|
||||
function [totalbits,errors,ber_,loc,sir,fsym] = singleBerRun(filepath, eq_object)
|
||||
|
||||
recorded_data = load(filepath);
|
||||
delete(findobj('Type','figure','Name','prms_compare'));
|
||||
sir = recorded_data.saveStructTemp.awg2scope_keysight_state.eigenlight_mpi - 3.3 + 7.2;
|
||||
fsym = recorded_data.saveStructTemp.common.f_sym;
|
||||
|
||||
% 0) build RX Signal
|
||||
y_rx = Electricalsignal(recorded_data.saveStructTemp.dp_tsynch_out');
|
||||
y_rx.fs = 2.*fsym;
|
||||
|
||||
% 0) build tx reference Signal for eq training
|
||||
y_digimod = Informationsignal(recorded_data.saveStructTemp.digi_mod_out');
|
||||
y_digimod.fs = fsym;
|
||||
|
||||
bits_ref = recorded_data.saveStructTemp.prms_out;
|
||||
|
||||
[totalbits,errors,ber_,loc] = runPostProc(eq_object,y_rx,y_digimod,bits_ref);
|
||||
|
||||
disp([class(eq_object),': fsym: ',num2str(fsym*1e-9),'GBd, SIR: ',num2str(sir),' ->> BER: ',sprintf('%2E',ber_)]);
|
||||
|
||||
end
|
||||
|
||||
function plotBerCurve(ber_,sir,fsym)
|
||||
|
||||
rate = [92e9, 56e9];
|
||||
figure(95)
|
||||
|
||||
for r = 1:length(rate)
|
||||
|
||||
sorted = sortrows([sir(fsym == rate(r)); ber_(fsym == rate(r))]',1)';
|
||||
hold on
|
||||
plot(abs(sorted(1,:)),sorted(2,:),'DisplayName',[num2str(rate(r).*1e-9),' GBd; PAM4;'],'LineWidth',1,'Marker','o','MarkerSize',5,'LineStyle','-','HandleVisibility','on');
|
||||
|
||||
|
||||
end
|
||||
set(gca, 'YScale', 'log');
|
||||
yline(3.8e-3,'LineWidth',1, 'LineStyle','--','HandleVisibility','off');
|
||||
xlim([15,35]);
|
||||
xlabel('SIR in dB');
|
||||
ylabel('BER');
|
||||
end
|
||||
|
||||
function [ber_,sir,fsym] = sweepSIR(allfiles,eq_object)
|
||||
|
||||
parfor i = 1:length(allfiles)
|
||||
|
||||
if allfiles(i).bytes ~= 0
|
||||
recorded_data = load([allfiles(i).folder,filesep, allfiles(i).name]);
|
||||
delete(findobj('Type','figure','Name','prms_compare'));
|
||||
else
|
||||
continue
|
||||
end
|
||||
|
||||
sir(i) = recorded_data.saveStructTemp.awg2scope_keysight_state.eigenlight_mpi - 3.3 + 7.2;
|
||||
fsym(i) = recorded_data.saveStructTemp.common.f_sym;
|
||||
|
||||
fdac(i) = recorded_data.saveStructTemp.common.f_DAC;
|
||||
fadc(i) = recorded_data.saveStructTemp.common.f_ADC;
|
||||
|
||||
% 0) build RX Signal
|
||||
y_rx = Electricalsignal(recorded_data.saveStructTemp.dp_tsynch_out');
|
||||
y_rx.fs = 2.*fsym(i);
|
||||
|
||||
% 0) build tx reference Signal for eq training
|
||||
y_digimod = Informationsignal(recorded_data.saveStructTemp.digi_mod_out');
|
||||
y_digimod.fs = fsym(i);
|
||||
|
||||
bits_ref = recorded_data.saveStructTemp.prms_out;
|
||||
|
||||
[totalbits,errors,ber_(i),loc] = runPostProc(eq_object,y_rx,y_digimod,bits_ref);
|
||||
|
||||
disp(['fsym: ',num2str(fsym(i)*1e-9),'GBd, SIR: ',num2str(sir(i)),' ->> BER: ',sprintf('%2E',ber_(i))]);
|
||||
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
function [totalbits,errors,ber_,loc] = runPostProc(eq_object,y_rx,y_ref,bits_ref)
|
||||
|
||||
% 1) normlaize
|
||||
y_rx = y_rx.normalize("mode","rms");
|
||||
|
||||
[Eq_out] = eq_object.process(y_rx,y_ref);
|
||||
|
||||
% 3) digital demodulation object
|
||||
digimod = PAMmapper(4,0);
|
||||
|
||||
%estimated/ equalized symbol sequence
|
||||
d_estimated = digimod.demap(Eq_out);
|
||||
|
||||
% 4) BER calculation
|
||||
[totalbits,errors,ber_,loc] = calc_ber(d_estimated.signal(1:end,:),bits_ref(1:end,:)',"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
|
||||
end
|
||||
462
projects/MPI_analysis_Mai24/ofc_sim.m
Normal file
462
projects/MPI_analysis_Mai24/ofc_sim.m
Normal file
@@ -0,0 +1,462 @@
|
||||
|
||||
clear;
|
||||
col = linspecer(6);
|
||||
|
||||
% GENERATE SIR CURVE
|
||||
if ismac
|
||||
foldername = '/Users/silasoettinghaus/Documents/MATLAB/Labor_Datensatz_PAM4_MPI/pam4_10km_1km';
|
||||
else
|
||||
foldername = 'C:\Users\Silas\Documents\MATLAB\Datensätze\Labor_Datensatz_PAM4_MPI_OFC2023\pam4_10km_1km';
|
||||
end
|
||||
|
||||
|
||||
% SETTINGS
|
||||
optimize_mudc = 0;
|
||||
run_sir_sweep = 1;
|
||||
run_feed_forward = 0;
|
||||
run_baseline = 0;
|
||||
run_ideal_dc_tap = 0;
|
||||
plot_timesignal = 0;
|
||||
|
||||
block_loop = [92];
|
||||
|
||||
for bl = 1:numel(block_loop)
|
||||
|
||||
eq_parallelization_blocklength = block_loop(bl);
|
||||
eq_updatelatency = 3;
|
||||
eq_avg_blocklength =0;
|
||||
|
||||
% FIND BEST MU DC
|
||||
|
||||
if optimize_mudc
|
||||
mudc_loop = [0, 0.0001,0.0005, 0.001,0.005, 0.01:0.01:0.1, 0.2:0.1:1];
|
||||
|
||||
current_filename = 'pam4__loop_14_92Gbd_19092023_1513.mat';
|
||||
% current_filename = 'pam4__loop_29_56Gbd_19092023_1546.mat';
|
||||
recorded_data = load([foldername,filesep, current_filename]);
|
||||
|
||||
[best_mudc,ber]= optimizeMuDc(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc_loop);
|
||||
|
||||
figure(16)
|
||||
hold on
|
||||
scatter(mudc_loop(mudc_loop~=best_mudc),ber(mudc_loop~=best_mudc),'Marker','*','LineWidth',1);
|
||||
set(gca, 'YScale', 'log');
|
||||
set(gca, 'XScale', 'log');
|
||||
scatter(best_mudc,ber(mudc_loop==best_mudc),100,'Marker','*','LineWidth',2)
|
||||
yline(ber(1));
|
||||
xlim([0,1])
|
||||
end
|
||||
|
||||
if run_sir_sweep
|
||||
|
||||
%mudc = 0.04;%best_mudc;
|
||||
mudc = 0.005;
|
||||
|
||||
[ber,sir,fsym] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc);
|
||||
|
||||
plotSirSweep(ber,sir,fsym,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc)
|
||||
|
||||
crossing = calculateCrossing([92e9, 56e9],ber,sir,fsym);
|
||||
|
||||
req_sir_56(bl) = crossing(2,2) ;
|
||||
req_sir_92(bl) = crossing(2,1) ;
|
||||
|
||||
end
|
||||
|
||||
|
||||
end
|
||||
|
||||
if run_feed_forward
|
||||
|
||||
current_filename = 'pam4__loop_14_92Gbd_19092023_1513.mat';
|
||||
recorded_data = load([foldername,filesep, current_filename]);
|
||||
eq_avg_blocklength = [50,100,1000,3000];
|
||||
[best_block,ber]= optimizeAvgBlocklength(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,0);
|
||||
|
||||
|
||||
best_block = 400;
|
||||
|
||||
[ber_base,sir_base,fsym_base] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,best_block,0);
|
||||
|
||||
plotSirSweep(ber_base,sir_base,fsym_base,eq_parallelization_blocklength,eq_updatelatency,best_block,0)
|
||||
|
||||
crossing = calculateCrossing([92e9, 56e9],ber_base,sir_base,fsym_base);
|
||||
|
||||
[ber_base,sir_base,fsym_base] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,0,0);
|
||||
|
||||
plotSirSweep(ber_base,sir_base,fsym_base,eq_parallelization_blocklength,eq_updatelatency,0,0)
|
||||
|
||||
crossing = calculateCrossing([92e9, 56e9],ber_base,sir_base,fsym_base);
|
||||
|
||||
end
|
||||
|
||||
|
||||
if run_baseline
|
||||
|
||||
% baseline means no DC removal alg!
|
||||
mudc = 0;
|
||||
[ber_base,sir_base,fsym_base] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc);
|
||||
|
||||
plotSirSweep(ber_base,sir_base,fsym_base,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc)
|
||||
|
||||
crossing = calculateCrossing([92e9, 56e9],ber_base,sir_base,fsym_base);
|
||||
|
||||
req_sir_56_baseline = crossing(2,2) ;
|
||||
req_sir_92_baseline = crossing(2,1) ;
|
||||
|
||||
end
|
||||
|
||||
if run_ideal_dc_tap
|
||||
|
||||
current_filename = 'pam4__loop_29_56Gbd_19092023_1546.mat';
|
||||
recorded_data = load([foldername,filesep, current_filename]);
|
||||
[mudc,~]= optimizeMuDc(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc_loop);
|
||||
|
||||
eq_parallelization_blocklength = 1;
|
||||
eq_updatelatency = 1;
|
||||
[ber_ideal,sir_ideal,fsym_ideal] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc);
|
||||
|
||||
plotSirSweep(ber_ideal,sir_ideal,fsym_ideal,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc)
|
||||
|
||||
crossing = calculateCrossing([92e9, 56e9],ber_ideal,sir_ideal,fsym_ideal);
|
||||
|
||||
req_sir_56_ideal = crossing(2,2) ;
|
||||
req_sir_92_ideal = crossing(2,1) ;
|
||||
|
||||
end
|
||||
|
||||
|
||||
|
||||
if plot_timesignal
|
||||
|
||||
current_filename = 'pam4__loop_26_92Gbd_19092023_1542.mat';
|
||||
recorded_data = load([foldername,filesep, current_filename]);
|
||||
|
||||
sir = recorded_data.saveStructTemp.awg2scope_keysight_state.eigenlight_mpi - 3.3 + 7.2;
|
||||
|
||||
fsym = 92e9;
|
||||
eq_parallelization_blocklength = 1;
|
||||
eq_updatelatency = 1;
|
||||
eq_avg_blocklength = 0;
|
||||
|
||||
% TRUE SYMBOLS
|
||||
correct_symbols = recorded_data.saveStructTemp.digi_mod_out';
|
||||
|
||||
%3) PLAIN RECEIVED SIGNAL
|
||||
disp('RX Signal')
|
||||
y_rx = Electricalsignal(recorded_data.saveStructTemp.dp_tsynch_out');
|
||||
y_rx.fs = 2.*fsym;
|
||||
rx_symbols = y_rx.resample("fs_in",2.*fsym,"fs_out",fsym);
|
||||
rx_symbols = rx_symbols.normalize("mode","rms").signal;
|
||||
disp(std(rx_symbols));
|
||||
scatterleveldependent(rx_symbols,correct_symbols,fsym);
|
||||
|
||||
%1) PLOT WITH WITH ALGORITHM
|
||||
if 0
|
||||
mudc_loop = [0, 0.0001,0.0005, 0.001,0.005, 0.01:0.01:0.1, 0.2:0.1:1];
|
||||
[mudc,~]= optimizeMuDc(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc_loop);
|
||||
end
|
||||
|
||||
disp('ALGORITHM ')
|
||||
mudc = 0.05;
|
||||
results_alg = runPostProcessing(recorded_data,mudc,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength);
|
||||
disp(results_alg.ber);
|
||||
rx_symbols = results_alg.EQ_out.signal;
|
||||
disp(std(rx_symbols));
|
||||
scatterleveldependent(rx_symbols,correct_symbols,fsym);
|
||||
|
||||
%2) JUST EQ
|
||||
disp('Just EQ')
|
||||
mudc = 0;
|
||||
results = runPostProcessing(recorded_data,mudc,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength);
|
||||
disp(results.ber)
|
||||
rx_symbols = results.EQ_out.signal;
|
||||
disp(std(rx_symbols));
|
||||
scatterleveldependent(rx_symbols,correct_symbols,fsym);
|
||||
|
||||
|
||||
|
||||
|
||||
end
|
||||
|
||||
|
||||
function plotSirSweep(ber,sir,fsym,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc)
|
||||
|
||||
|
||||
rate = [92e9, 56e9];
|
||||
figure(95)
|
||||
|
||||
for r = 1:length(rate)
|
||||
|
||||
sorted = sortrows([sir(fsym == rate(r)); ber(fsym == rate(r))]',1)';
|
||||
hold on
|
||||
plot(abs(sorted(1,:)),sorted(2,:),'DisplayName',[num2str(rate(r).*1e-9),' GBd; PAM4; mudc: ',num2str(mudc)],'LineWidth',1,'Marker','o','MarkerSize',5,'LineStyle','-','HandleVisibility','on');
|
||||
|
||||
end
|
||||
|
||||
set(gca, 'YScale', 'log');
|
||||
yline(3.8e-3,'LineWidth',1, 'LineStyle','--','HandleVisibility','off');
|
||||
xlim([15,35]);
|
||||
xlabel('SIR in dB');
|
||||
ylabel('BER');
|
||||
|
||||
end
|
||||
|
||||
function [crossing] = calculateCrossing(rate,ber,sir,fsym)
|
||||
|
||||
for r = 1:length(rate)
|
||||
sorted = sortrows([sir(fsym == rate(r)); ber(fsym == rate(r))]',1)';
|
||||
berVals = sorted(2,:);
|
||||
xAxis = sorted(1,:);
|
||||
|
||||
hdfec = 3.8e-3 .* ones(1,length(sorted));
|
||||
crossing(:,r) = InterX([hdfec(:)';xAxis],[berVals;xAxis]) ;
|
||||
end
|
||||
|
||||
end
|
||||
|
||||
function [ber,sir,fsym] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc)
|
||||
|
||||
% GENERATE SIR CURVE
|
||||
if ismac
|
||||
foldername = '/Users/silasoettinghaus/Documents/MATLAB/Labor_Datensatz_PAM4_MPI/pam4_10km_1km';
|
||||
else
|
||||
foldername = 'C:\Users\Silas\Documents\MATLAB\Datensätze\Labor_Datensatz_PAM4_MPI_OFC2023\pam4_10km_1km';
|
||||
end
|
||||
|
||||
allfiles = dir(foldername);
|
||||
|
||||
for i = 1:length(allfiles)
|
||||
|
||||
if allfiles(i).bytes ~= 0
|
||||
current_filename = allfiles(i).name;
|
||||
recorded_data = load([foldername,filesep, current_filename]);
|
||||
else
|
||||
continue
|
||||
end
|
||||
|
||||
results = runPostProcessing(recorded_data,mudc,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength);
|
||||
ber(i) = results.ber;
|
||||
fsym(i) = results.fsym;
|
||||
sir(i) = results.sir;
|
||||
|
||||
disp(['fsym: ',num2str(results.fsym*1e-9),'GBd, SIR: ',num2str(results.sir),' ->> BER: ',sprintf('%2E',results.ber)]);
|
||||
|
||||
end
|
||||
end
|
||||
|
||||
function [best_blocklength,ber] = optimizeAvgBlocklength(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength_loop,mudc)
|
||||
|
||||
for j = 1:length(eq_avg_blocklength_loop)
|
||||
eq_avg_blocklength = eq_avg_blocklength_loop(j);
|
||||
|
||||
|
||||
results = runPostProcessing(recorded_data,mudc,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength);
|
||||
ber(j) = results.ber;
|
||||
|
||||
disp(['fsym: ',num2str(results.fsym*1e-9),'GBd, SIR: ',num2str(results.sir),' ->> BER: ',sprintf('%2E',results.ber)]);
|
||||
|
||||
end
|
||||
|
||||
[~,pos]=min(ber);
|
||||
best_blocklength = eq_avg_blocklength_loop(pos);
|
||||
|
||||
end
|
||||
|
||||
function [best_mudc,ber] = optimizeMuDc(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc_loop)
|
||||
|
||||
parfor j = 1:length(mudc_loop)
|
||||
mudc = mudc_loop(j);
|
||||
|
||||
|
||||
results = runPostProcessing(recorded_data,mudc,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength);
|
||||
ber(j) = results.ber;
|
||||
|
||||
disp(['fsym: ',num2str(results.fsym*1e-9),'GBd, SIR: ',num2str(results.sir),' ->> BER: ',sprintf('%2E',results.ber)]);
|
||||
|
||||
end
|
||||
|
||||
[~,pos]=min(ber);
|
||||
best_mudc = mudc_loop(pos);
|
||||
|
||||
end
|
||||
|
||||
function results = runPostProcessing(recorded_data,mudc,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength)
|
||||
|
||||
results.sir = recorded_data.saveStructTemp.awg2scope_keysight_state.eigenlight_mpi - 3.3 + 7.2;
|
||||
results.fsym = recorded_data.saveStructTemp.common.f_sym;
|
||||
|
||||
results.fdac = recorded_data.saveStructTemp.common.f_DAC;
|
||||
results.fadc = recorded_data.saveStructTemp.common.f_ADC;
|
||||
|
||||
|
||||
% 0) build RX Signal
|
||||
y_rx = Electricalsignal(recorded_data.saveStructTemp.dp_tsynch_out');
|
||||
y_rx.fs = 2.*results.fsym;
|
||||
|
||||
% 0) build tx reference Signal for eq training
|
||||
y_digimod = Informationsignal(recorded_data.saveStructTemp.digi_mod_out');
|
||||
y_digimod.fs = results.fsym;
|
||||
|
||||
|
||||
% 1) normlaize
|
||||
y_rx = y_rx.normalize("mode","rms");
|
||||
|
||||
eq = EQ_silas_ofc("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",mudc,...
|
||||
"mu_dc_train",mudc,...
|
||||
"mu_ffe_train",0,...
|
||||
"mu_dfe_train",0.005,...
|
||||
"mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
"mu_dfe_dd",0.005,...
|
||||
"ddloops",3,...
|
||||
"trainloops",4,...
|
||||
"eq_parallelization_blocklength",eq_parallelization_blocklength, ...
|
||||
"eq_updatelatency",eq_updatelatency,...
|
||||
"eq_avg_blocklength",eq_avg_blocklength);
|
||||
%
|
||||
% eq = EQ_silas("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
% "sps",2,...
|
||||
% "mu_dc_dd",mudc,...
|
||||
% "mu_dc_train",mudc,...
|
||||
% "mu_ffe_train",0,...
|
||||
% "mu_dfe_train",0.005,...
|
||||
% "mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
% "mu_dfe_dd",0.005,...
|
||||
% "ddloops",3,...
|
||||
% "trainloops",4,...
|
||||
% "eq_parallelization_blocklength",eq_parallelization_blocklength, ...
|
||||
% "eq_updatelatency",eq_updatelatency,...
|
||||
% "eq_avg_blocklength",eq_avg_blocklength);
|
||||
|
||||
[Eq_out] = eq.process(y_rx,y_digimod);
|
||||
|
||||
results.EQ_out = Eq_out;
|
||||
|
||||
% 3) digital demodulation object
|
||||
digimod = PAMmapper(2^recorded_data.saveStructTemp.common.M,0);
|
||||
|
||||
%estimated/ equalized symbol sequence
|
||||
d_estimated = digimod.demap(Eq_out);
|
||||
|
||||
%correct data symbols
|
||||
d_correct = recorded_data.saveStructTemp.prms_out;
|
||||
|
||||
% 4) BER calculation
|
||||
% BER
|
||||
[totalbits,errors,results.ber,loc] = calc_ber(d_estimated.signal(1:end,:),d_correct(1:end,:)',"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
% [totalbits,errors,results.ber,loc] = calc_ber(d_estimated.signal(1:end,:) ,d_correct(1:end,:)',"skip",0,"returnErrorLocation",1);
|
||||
end
|
||||
|
||||
function std_per_lvl = calcleveldependentstd(rx_symbols,correct_symbols)
|
||||
error_of_rx_signal = rx_symbols - correct_symbols;
|
||||
levels = unique(correct_symbols);
|
||||
for l = 1:4
|
||||
level_amplitude = levels(l);
|
||||
std_per_lvl(l) = var(( 1/64 .* movsum(error_of_rx_signal(correct_symbols==level_amplitude),[64/2,64/2]) ));
|
||||
%std_per_lvl(l) = std(error_of_rx_signal(correct_symbols==level_amplitude));
|
||||
end
|
||||
end
|
||||
|
||||
function scatterleveldependent(rx_symbols,correct_symbols,f_sym)
|
||||
col = cbrewer2('Paired',8);
|
||||
ccnt = -1;
|
||||
figure1 = figure();
|
||||
levels = unique(correct_symbols);
|
||||
|
||||
start = 1;
|
||||
ende = length(correct_symbols);
|
||||
|
||||
start = 30000;
|
||||
ende = 40000;
|
||||
|
||||
for l = 1:4
|
||||
ccnt = ccnt+2;
|
||||
|
||||
level_amplitude = levels(l);
|
||||
|
||||
symbols_for_lvl = NaN(1,length(correct_symbols));
|
||||
symbols_for_lvl(correct_symbols==level_amplitude) = rx_symbols(correct_symbols==level_amplitude);
|
||||
std_lvl(l) = std(symbols_for_lvl,'omitnan');
|
||||
xax_in_sec = ((1:length(correct_symbols)) / f_sym) * 1e6;
|
||||
xax_in_sec = 1:length(correct_symbols);
|
||||
|
||||
scatter(xax_in_sec(start:ende),symbols_for_lvl(start:ende),10,'.','MarkerFaceAlpha',0.5,'MarkerEdgeAlpha',0.5,'MarkerEdgeColor',col(ccnt,:));
|
||||
hold on;
|
||||
end
|
||||
|
||||
std_lvl = round(std_lvl,2);
|
||||
disp(std_lvl);
|
||||
|
||||
ccnt = 0;
|
||||
|
||||
% Add the windowed/ smoothed curves
|
||||
for l = 1:4
|
||||
ccnt = ccnt+2;
|
||||
level_amplitude = levels(l);
|
||||
|
||||
symbols_for_lvl = NaN(1,length(correct_symbols));
|
||||
|
||||
movmean = 1/250 .* movsum(rx_symbols(correct_symbols==level_amplitude),[250/2,250/2]);
|
||||
|
||||
symbols_for_lvl(correct_symbols==level_amplitude) = movmean;
|
||||
|
||||
nanx = isnan(symbols_for_lvl);
|
||||
t = 1:numel(symbols_for_lvl);
|
||||
symbols_for_lvl(nanx) = interp1(t(~nanx), symbols_for_lvl(~nanx), t(nanx));
|
||||
|
||||
xax_in_sec = ((1:length(correct_symbols)) / f_sym) * 1e6;
|
||||
xax_in_sec = 1:length(correct_symbols);
|
||||
|
||||
plot(xax_in_sec(start:ende),symbols_for_lvl(start:ende),'Color',col(ccnt,:));
|
||||
hold on
|
||||
end
|
||||
|
||||
%yline(max(rx_symbols(correct_symbols==levels(2))))
|
||||
|
||||
if 0
|
||||
annotation(figure1,'textbox',...
|
||||
[0.660523809523809 0.844444444444448 0.133523809523809 0.0603174603174607],...
|
||||
'String',['\sigma = ',num2str(std_lvl(4))],...
|
||||
'LineWidth',1.8,...
|
||||
'LineStyle','none',...
|
||||
'FontSize',12,...
|
||||
'FitBoxToText','off');
|
||||
|
||||
% Create textbox
|
||||
annotation(figure1,'textbox',...
|
||||
[0.667666666666665 0.642857142857147 0.133523809523809 0.0603174603174607],...
|
||||
'String',['\sigma = ',num2str(std_lvl(3))],...
|
||||
'LineWidth',1.8,...
|
||||
'LineStyle','none',...
|
||||
'FontSize',12,...
|
||||
'FitBoxToText','off');
|
||||
|
||||
% Create textbox
|
||||
annotation(figure1,'textbox',...
|
||||
[0.671238095238093 0.442857142857148 0.133523809523809 0.0603174603174608],...
|
||||
'String',['\sigma = ',num2str(std_lvl(2))],...
|
||||
'LineWidth',1.8,...
|
||||
'LineStyle','none',...
|
||||
'FontSize',12,...
|
||||
'FitBoxToText','off');
|
||||
|
||||
% Create textbox
|
||||
annotation(figure1,'textbox',...
|
||||
[0.670047619047616 0.265079365079371 0.133523809523809 0.0603174603174608],...
|
||||
'String',['\sigma = ',num2str(std_lvl(1))],...
|
||||
'LineWidth',1.8,...
|
||||
'LineStyle','none',...
|
||||
'FontSize',12,...
|
||||
'FitBoxToText','off');
|
||||
end
|
||||
|
||||
xlim([0, 2.6])
|
||||
ylim([-2 2])
|
||||
xlabel('Time in $\mu$s');
|
||||
ylabel('Normalized Amplitude');
|
||||
|
||||
end
|
||||
|
||||
|
||||
14
projects/MPI_analysis_Mai24/simulation_entry.m
Normal file
14
projects/MPI_analysis_Mai24/simulation_entry.m
Normal file
@@ -0,0 +1,14 @@
|
||||
|
||||
|
||||
% settings
|
||||
|
||||
M = 4;
|
||||
datarate = 224e9;
|
||||
kover = 8;
|
||||
|
||||
|
||||
% construct trasnmit signal
|
||||
|
||||
% transmit including MPI
|
||||
|
||||
% receive
|
||||
@@ -11,10 +11,9 @@ end
|
||||
|
||||
|
||||
% SETTINGS
|
||||
|
||||
optimize_mudc = 0;
|
||||
run_sir_sweep = 0;
|
||||
run_feed_forward = 1;
|
||||
run_sir_sweep = 1;
|
||||
run_feed_forward = 0;
|
||||
run_baseline = 0;
|
||||
run_ideal_dc_tap = 0;
|
||||
plot_timesignal = 1;
|
||||
@@ -33,24 +32,26 @@ for bl = 1:numel(block_loop)
|
||||
mudc_loop = [0, 0.0001,0.0005, 0.001,0.005, 0.01:0.01:0.1, 0.2:0.1:1];
|
||||
|
||||
current_filename = 'pam4__loop_14_92Gbd_19092023_1513.mat';
|
||||
current_filename = 'pam4__loop_29_56Gbd_19092023_1546.mat';
|
||||
% current_filename = 'pam4__loop_29_56Gbd_19092023_1546.mat';
|
||||
recorded_data = load([foldername,filesep, current_filename]);
|
||||
|
||||
[best_mudc,ber]= optimizeMuDc(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc_loop);
|
||||
|
||||
% figure(16)
|
||||
% hold on
|
||||
% plot(mudc_loop,ber);
|
||||
% set(gca, 'YScale', 'log');
|
||||
% set(gca, 'XScale', 'log');
|
||||
% scatter(best_mudc,ber(mudc_loop==best_mudc),100,'Marker','x','LineWidth',2)
|
||||
% yline(ber(1));
|
||||
% xlim([0,1])
|
||||
figure(16)
|
||||
hold on
|
||||
scatter(mudc_loop(mudc_loop~=best_mudc),ber(mudc_loop~=best_mudc),'Marker','*','LineWidth',1);
|
||||
set(gca, 'YScale', 'log');
|
||||
set(gca, 'XScale', 'log');
|
||||
scatter(best_mudc,ber(mudc_loop==best_mudc),100,'Marker','*','LineWidth',2)
|
||||
yline(ber(1));
|
||||
xlim([0,1])
|
||||
end
|
||||
|
||||
if run_sir_sweep
|
||||
|
||||
mudc = best_mudc;
|
||||
|
||||
%mudc = 0.04;%best_mudc;
|
||||
mudc = 0;
|
||||
|
||||
[ber,sir,fsym] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc);
|
||||
|
||||
plotSirSweep(ber,sir,fsym,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc)
|
||||
@@ -67,7 +68,7 @@ end
|
||||
|
||||
if run_feed_forward
|
||||
|
||||
current_filename = 'pam4__loop_14_92Gbd_v19092023_1513.mat';
|
||||
current_filename = 'pam4__loop_14_92Gbd_19092023_1513.mat';
|
||||
recorded_data = load([foldername,filesep, current_filename]);
|
||||
eq_avg_blocklength = [50,100,1000,3000];
|
||||
[best_block,ber]= optimizeAvgBlocklength(recorded_data,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,0);
|
||||
@@ -91,7 +92,8 @@ end
|
||||
|
||||
|
||||
if run_baseline
|
||||
|
||||
|
||||
% baseline means no DC removal alg!
|
||||
mudc = 0;
|
||||
[ber_base,sir_base,fsym_base] = runSIRsweep(eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength,mudc);
|
||||
|
||||
@@ -219,7 +221,7 @@ function [ber,sir,fsym] = runSIRsweep(eq_parallelization_blocklength,eq_updatela
|
||||
if ismac
|
||||
foldername = '/Users/silasoettinghaus/Documents/MATLAB/Labor_Datensatz_PAM4_MPI/pam4_10km_1km';
|
||||
else
|
||||
foldername = 'C:\Users\Silas\Documents\MATLAB\Labor_Datensatz_PAM4_MPI\pam4_10km_1km';
|
||||
foldername = 'C:\Users\Silas\Documents\MATLAB\Datensätze\Labor_Datensatz_PAM4_MPI_OFC2023\pam4_10km_1km';
|
||||
end
|
||||
|
||||
allfiles = dir(foldername);
|
||||
@@ -236,7 +238,7 @@ function [ber,sir,fsym] = runSIRsweep(eq_parallelization_blocklength,eq_updatela
|
||||
results = runPostProcessing(recorded_data,mudc,eq_parallelization_blocklength,eq_updatelatency,eq_avg_blocklength);
|
||||
ber(i) = results.ber;
|
||||
fsym(i) = results.fsym;
|
||||
sir(i) = results.sir
|
||||
sir(i) = results.sir;
|
||||
|
||||
disp(['fsym: ',num2str(results.fsym*1e-9),'GBd, SIR: ',num2str(results.sir),' ->> BER: ',sprintf('%2E',results.ber)]);
|
||||
|
||||
@@ -293,13 +295,27 @@ function results = runPostProcessing(recorded_data,mudc,eq_parallelization_block
|
||||
y_rx.fs = 2.*results.fsym;
|
||||
|
||||
% 0) build tx reference Signal for eq training
|
||||
y_digimod = Electricalsignal(recorded_data.saveStructTemp.digi_mod_out');
|
||||
y_digimod = Informationsignal(recorded_data.saveStructTemp.digi_mod_out');
|
||||
y_digimod.fs = results.fsym;
|
||||
|
||||
|
||||
% 1) normlaize
|
||||
y_rx = y_rx.normalize("mode","rms");
|
||||
|
||||
% eq = EQ_silas_ofc("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
% "sps",2,...
|
||||
% "mu_dc_dd",mudc,...
|
||||
% "mu_dc_train",mudc,...
|
||||
% "mu_ffe_train",0,...
|
||||
% "mu_dfe_train",0.005,...
|
||||
% "mu_ffe_dd",[0.0004 0.0004 0.0004],...
|
||||
% "mu_dfe_dd",0.005,...
|
||||
% "ddloops",3,...
|
||||
% "trainloops",4,...
|
||||
% "eq_parallelization_blocklength",eq_parallelization_blocklength, ...
|
||||
% "eq_updatelatency",eq_updatelatency,...
|
||||
% "eq_avg_blocklength",eq_avg_blocklength);
|
||||
|
||||
eq = EQ_silas("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
|
||||
"sps",2,...
|
||||
"mu_dc_dd",mudc,...
|
||||
@@ -328,7 +344,9 @@ function results = runPostProcessing(recorded_data,mudc,eq_parallelization_block
|
||||
d_correct = recorded_data.saveStructTemp.prms_out;
|
||||
|
||||
% 4) BER calculation
|
||||
[totalbits,errors,results.ber,loc] = calc_ber(d_estimated.signal(1:end,:) ,d_correct(1:end,:)',"skip",0,"returnErrorLocation",1);
|
||||
% BER
|
||||
[totalbits,errors,results.ber,loc] = calc_ber(d_estimated.signal(1:end,:),d_correct(1:end,:)',"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
% [totalbits,errors,results.ber,loc] = calc_ber(d_estimated.signal(1:end,:) ,d_correct(1:end,:)',"skip",0,"returnErrorLocation",1);
|
||||
end
|
||||
|
||||
function std_per_lvl = calcleveldependentstd(rx_symbols,correct_symbols)
|
||||
|
||||
86
projects/standard_system/imdd_minimal.m
Normal file
86
projects/standard_system/imdd_minimal.m
Normal file
@@ -0,0 +1,86 @@
|
||||
|
||||
|
||||
clear
|
||||
M = 4;
|
||||
fsym = 112e9;
|
||||
fdac = 256e9;
|
||||
kover = 8;
|
||||
oneway_interference_meter = 0;
|
||||
link_total_meter = 10000;
|
||||
sir = 100;
|
||||
rop = 0;
|
||||
|
||||
|
||||
[D,B] = PAMsource("order",18,"useprbs",1,"fsym",fsym,"M",M).process();
|
||||
|
||||
if 1
|
||||
S = Pulseformer("fsym",fsym,"fdac",256e9,"pulse","rrc","pulselength",16,"rrcalpha",0.1).process(D);
|
||||
end
|
||||
|
||||
if 1
|
||||
min_ = min(D.signal) * 1.3 ;
|
||||
max_ = max(D.signal) * 1.3 ;
|
||||
S.signal = clip(S.signal,min_,max_);
|
||||
end
|
||||
|
||||
X = M8199A("kover",kover).process(S).*0.7222;
|
||||
|
||||
u_pi = 2.9;
|
||||
vbias = -0.85*u_pi;
|
||||
[O,extmodlaser] = EML("mode",eml_mode.im_cosinus,"power",0,"fsimu",X.fs,"lambda",1310,"bias",vbias,"u_pi",u_pi,"linewidth",0,"randomkey",1).process(X);
|
||||
|
||||
O.eye(fsym,M);
|
||||
|
||||
O.spectrum("fignum",112,"displayname",'Opt. transmit spectrum');
|
||||
|
||||
if oneway_interference_meter ~= 0
|
||||
%%%%% Ping Pong/ Interference Path %%%%%%
|
||||
I = Fiber("fsimu",O.fs,"fiber_length",oneway_interference_meter*2/1000,"alpha",0.3,"D",0,"lambda0",1320,"gamma",0,"Dslope",0.07).process(O);
|
||||
I = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",-sir).process(I);
|
||||
|
||||
%%%%% Delay the "main" signal as in reality the interference is "older" than the main signal %%%%%%
|
||||
[O,dly] = O.delay("delay_meter",oneway_interference_meter*2);
|
||||
|
||||
%%%%% Recombine Interference and Main Signal %%%%%%
|
||||
O = O + I;
|
||||
|
||||
%%%%% Cut (due to the delays there is a jump in the signals) %%%%%%
|
||||
if dly == 0;dly = 1;end
|
||||
O.signal = O.signal(ceil(dly):end);
|
||||
end
|
||||
|
||||
%%%%% Propagate through fiber %%%%%%
|
||||
O = Fiber("fsimu",O.fs,"fiber_length",link_total_meter/1000,"alpha",0.3,"D",0,"lambda0",1320,"gamma",0,"Dslope",0.07).process(O);
|
||||
|
||||
% Set ROP
|
||||
O = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",rop).process(O);
|
||||
|
||||
E = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20).process(O);
|
||||
|
||||
E = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true).process(E);
|
||||
|
||||
Scpe_sig = Scope("fsimu",fdac*kover,"fadc",256e9,...
|
||||
"delay",0,"fixed_delay",0,"filtertype",filtertypes.butterworth,...
|
||||
"samplingdelay",0,"rand_samplingdelay",0,"freq_offset",0,"samp_jitter",0,...
|
||||
"adcresolution",16,"quantbuffer",0.1,'block_dc',1,'lpf_active',1,'H_lpf',Filter('filtdegree',4,"f_cutoff",63e9,"fs",256e9,"filterType",filtertypes.butterworth,"active",true)).process(E);
|
||||
|
||||
%%%%%% Sample to 2x fsym %%%%%%
|
||||
Scpe_sig = Scpe_sig.resample("fs_in",Scpe_sig.fs,"fs_out",2*fsym);
|
||||
% Scpe_sig.plot('fignum',12345,'displayname','bla')
|
||||
|
||||
%%%%%% Sync Rx signal with reference %%%%%%
|
||||
[Scpe_sig,delayed,cuts] = Scpe_sig.tsynch("reference",D,"fs_ref",fsym);
|
||||
|
||||
[EQ_sig] = FFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",80,"sps",2,"decide",1).process(Scpe_sig,D);
|
||||
|
||||
[~,errors_bm,ber,errors] = calc_ber(EQ_sig.signal,B.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
|
||||
|
||||
disp(['BER: ',sprintf('%.1E',ber),' - - ROP: ',num2str(O.power),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user