207 lines
10 KiB
Matlab
207 lines
10 KiB
Matlab
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%% Parameter to simulate and save
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params = struct;
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params.M = [4];
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params.datarate = [224];
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params.sir = [15:45]; %decibel = attenuation of interference path
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params.laser_linewidth = [1e6];
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params.pn_key = [1];
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params.rop = [-7];
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name = ['wh_',strrep(num2str(now),'.','')];
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wh = DataStorage(params);
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wh.addStorage("ber_ffe");
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wh.addStorage("ber_dcavg");
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wh.addStorage("ber_adapt");
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wh.addStorage("ber_dcrem");
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%% Init Params
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link_length = 10000; %meter
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endcnt = prod(wh.dim);
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cnt=0;
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disp(['Start Simulation of ',num2str(endcnt),' loops...'])
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tic
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for M = wh.parameter.M.values
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for datarate = wh.parameter.datarate.values
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for pn_key = wh.parameter.pn_key.values
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%% SETUP HERE: %%
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kover = 8;
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M8199 = M8199A("kover",kover);
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fdac = M8199.fdac;
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fsym = round(datarate / log2(M))*1e9;
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rrcalpha = 0.05;
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Pform = Pulseformer("fsym",fsym,"fdac",4*fsym,"pulse","rrc","pulselength",16,"rrcalpha",rrcalpha);
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% MAIN SIGNAL
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%%%%% Symbol Generation %%%%%%
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[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",pn_key).process();
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%%%%% AWG %%%%%%
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El_sig = M8199.process(Digi_sig);
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El_sig = El_sig.*0.7222;
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El_sig.signal = awgn(El_sig.signal,20,'measured',pn_key);
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%%%%% Lowpass before Modulator %%%%%%
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El_sig = Filter('filtdegree',2,"f_cutoff",60e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true).process(El_sig);
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El_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",10).process(El_sig);
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% INTERFERENCE SIGNAL
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%%%%% Symbol Generation %%%%%%
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[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",pn_key*2).process();
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%%%%% AWG %%%%%%
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El_sig_i = M8199.process(Digi_sig_i);
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El_sig_i = El_sig_i.*0.7222;
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El_sig_i.signal = awgn(El_sig_i.signal,20,'measured',pn_key*2);
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%%%%% Lowpass before Modulator %%%%%%
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El_sig_i = Filter('filtdegree',2,"f_cutoff",60e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true).process(El_sig_i);
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El_sig_i = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",10).process(El_sig_i);
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for laser_linewidth = wh.parameter.laser_linewidth.values
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% MAIN SIGNAL
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%%%%% MODULATE E/O CONVERSION %%%%%%
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vbias_rel = 0.5;
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u_pi = 2.9;
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vbias = -vbias_rel*u_pi;
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[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);
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Optfilter = Filter('filtdegree',6,"f_cutoff",fsym.*0.7,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true);
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Opt_sig = Optfilter.process(Opt_sig);
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er = Opt_sig.extinctionratio(fsym,M);
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% INTERFERENCE SIGNAL
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%%%%% MODULATE E/O CONVERSION %%%%%%
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u_pi = 2.9;
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vbias = -vbias_rel*u_pi;
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[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);
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Opt_sig_i = Optfilter.process(Opt_sig_i);
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j_ = wh.parameter.sir.length;
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i_ = wh.parameter.rop.length;
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ber_ffe=zeros(j_,i_);
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ber_dcavg=zeros(j_,i_);
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ber_adapt=zeros(j_,i_);
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ber_dcrem=zeros(j_,i_);
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patten=zeros(j_,i_);
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parfor j = 1:j_
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sir = wh.parameter.sir.values(j);
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%%%%% Interference Signal Fiber Prop %%%%%%
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Opt_sig_i_prop = 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);
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Opt_sig_i_prop = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",Opt_sig.power-sir).process(Opt_sig_i_prop);
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%%%%% ADD Interference and Main Signal %%%%%%
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Opt_sig_comb = Opt_sig_i_prop + Opt_sig;
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%%%%% Interference Signal Fiber Prop %%%%%%
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Opt_sig_comb = Fiber("fsimu",Opt_sig_comb.fs,"fiber_length",link_length/1000,"alpha",0.3,"D",0,"lambda0",1310,"gamma",0,"Dslope",0.07).process(Opt_sig_comb);
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% % MPI Channel
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% Opt = channel_model_mpi(Opt_sig,link_length,mpi_path,sir);
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% Receiver ROP curve
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for i = 1:i_
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rop=wh.parameter.rop.values(i);
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% Set ROP
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Rx_sig = Amplifier("amp_mode","ideal_no_noise","gain_mode","output_power","amplification_db",rop).process(Opt_sig_comb);
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patten(j,i) = Rx_sig.power;
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%%%%%% Square Law %%%%%%
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Rx_sig = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20,"nep",1.8e-11).process(Rx_sig);
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%%%%%% Lowpass PhDiode %%%%%%
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Rx_sig = Filter('filtdegree',2,"f_cutoff",70e9,"fs",fdac*kover,"filterType",filtertypes.gaussian,"active",true).process(Rx_sig);
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% Rx_sig.spectrum("displayname","Received Signal after PhD","fignum",201);
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%%%%%% Scope %%%%%%
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fadc = 256e9;
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Lp_scpe = Filter('filtdegree',4,"f_cutoff",63e9,"fs",fadc,"filterType",filtertypes.butterworth,"active",true);
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Scpe_sig = Scope("fsimu",fdac*kover,"fadc",fadc,...
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"delay",0,"fixed_delay",0,"filtertype",filtertypes.butterworth,...
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"samplingdelay",0,"rand_samplingdelay",0,"freq_offset",0,"samp_jitter",0,...
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"adcresolution",16,"quantbuffer",0.1,'block_dc',1,'lpf_active',1,'H_lpf',Lp_scpe).process(Rx_sig);
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%%%%%% Sample to 2x fsym %%%%%%
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Scpe_sig = Scpe_sig.resample("fs_in",fadc,"fs_out",2*fsym);
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%%%%%% Sync Rx signal with reference %%%%%%
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[Scpe_sig,D,cuts] = Scpe_sig.tsynch("reference",Symbols,"fs_ref",fsym);
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%%%%% EQUALIZE %%%%%%
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Eq = FFE("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",1);
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[EQ_sig] = Eq.process(Scpe_sig,Symbols);
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Rx_bits = PAMmapper(M,0).demap(EQ_sig);
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[~,errors_bm,ber_ffe(j,i),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
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disp(['BER: ',sprintf('%.1E',ber_ffe(j,i)),' - - ROP: ',num2str(patten(j,i)),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
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Eq = FFE_FFDCAVG("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",1,"mu_buff",0.7);
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[EQ_sig] = Eq.process(Scpe_sig,Symbols);
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Rx_bits = PAMmapper(M,0).demap(EQ_sig);
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[~,errors_bm,ber_dcavg(j,i),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
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disp(['BER: ',sprintf('%.1E',ber_dcavg(j,i)),' - - ROP: ',num2str(patten(j,i)),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
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Eq = FFE_adaptive_decision("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",1,"buffer_length",85);
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[EQ_sig] = Eq.process(Scpe_sig,Symbols);
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Rx_bits = PAMmapper(M,0).demap(EQ_sig);
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[~,errors_bm,ber_adapt(j,i),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
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disp(['BER: ',sprintf('%.1E',ber_adapt(j,i)),' - - ROP: ',num2str(patten(j,i)),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
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Eq = FFE_DCremoval("epochs_tr",5,"epochs_dd",5,"len_tr",4096*2,"mu_dd",1e-4,"mu_tr",0,"order",25,"sps",2,"decide",1,"mu_dc",0.07);
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[EQ_sig] = Eq.process(Scpe_sig,Symbols);
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Rx_bits = PAMmapper(M,0).demap(EQ_sig);
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[~,errors_bm,ber_dcrem(j,i),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
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disp(['BER: ',sprintf('%.1E',ber_dcrem(j,i)),' - - ROP: ',num2str(patten(j,i)),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
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end
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end
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for j = 1:j_
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sir = wh.parameter.sir.values(j);
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for i = 1:i_
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rop=wh.parameter.rop.values(i);
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wh.addValueToStorage(ber_ffe(j,i) ,'ber_ffe',M,datarate,sir,laser_linewidth,pn_key,rop);
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wh.addValueToStorage(ber_dcavg(j,i),'ber_dcavg',M,datarate,sir,laser_linewidth,pn_key,rop);
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wh.addValueToStorage(ber_adapt(j,i),'ber_adapt',M,datarate,sir,laser_linewidth,pn_key,rop);
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wh.addValueToStorage(ber_dcrem(j,i),'ber_dcrem',M,datarate,sir,laser_linewidth,pn_key,rop);
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end
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end
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toc
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disp(['Simulated: ',num2str(cnt/endcnt*100),' %']);
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wh.save('C:\Users\Silas\Documents\MATLAB\imdd_simulation\projects\MPI_August\auswertung\')
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end
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end
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end
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end
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