246 lines
12 KiB
Matlab
246 lines
12 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 = [25]; %decibel = attenuation of interference path
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params.mpi_pathlen = [50];
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params.laser_linewidth = [1e6];
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params.pn_key = [15];
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params.vbias_rel = [0.5];
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params.rop = 0;
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params.clipfactor = [1.3];
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params.rrcalpha = [0.1];
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name = ['wh_',strrep(num2str(now),'.','')];
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wh = DataStorage(params);
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wh.addStorage("ber");
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wh.addStorage("rop");
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wh.addStorage("txpapr");
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wh.addStorage("er");
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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 rrcalpha = wh.parameter.rrcalpha.values
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%% SETUP HERE: %%
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kover = 8;
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Awg = M8199A("kover",kover);
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fdac = Awg.fdac;
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fsym = round(datarate / log2(M))*1e9;
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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_mod = Filter('filtdegree',2,"f_cutoff",100e9,"fs",fdac*kover,"filterType",filtertypes.butterworth,"active",true);
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Lp_opt = Filter('filtdegree',6,"f_cutoff",fsym.*0.7,"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.gaussian,"active",true);
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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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Scp = 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);
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fadc = Scp.fadc;
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% figure(222)
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% Lp_awg.showHere;
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% Lp_mod.showHere;
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% Lp_opt.showHere;
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% Lp_phd.showHere;
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% Lp_scpe.showHere;
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% SETUP TX Model
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Pmap = PAMmapper(M,0);
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Pform = Pulseformer("fsym",fsym,"fdac",4*fsym,"pulse","rrc","pulselength",16,"rrcalpha",rrcalpha);
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% SETUP RX Model
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Phd = Photodiode("fsimu",fdac*kover,"dark_current",2e-08,"responsivity",1,"temperature",20);
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% Eq = EQ_silas("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
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% "sps",2,...
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% "mu_dc_dd",0.1,...
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% "mu_dc_train",0.0,...
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% "mu_ffe_train",0.00,...
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% "mu_dfe_train",0.005,...
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% "mu_ffe_dd",[0.0004 0.0004 0.0004],...
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% "mu_dfe_dd",0.005,...
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% "ddloops",3,...
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% "trainloops",4,...
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% "eq_parallelization_blocklength",0, ...
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% "eq_updatelatency",0,...
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% "eq_avg_blocklength",1000);
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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",0);
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% 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);
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% Eq = EQ_silas_sliding_window_dc_removal("Ne",[25,0,0],"Nb",[2,0,0],"trainlength",4096,...
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% "sps",2,...
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% "mu_dc_dd",0.05,...
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% "mu_dc_train",0.05,...
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% "mu_ffe_train",0,...
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% "mu_dfe_train",0.005,...
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% "mu_ffe_dd",[0.0004 0.0004 0.0004],...
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% "mu_dfe_dd",0.0004,...
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% "ddloops",4,...
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% "trainloops",4,...
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% "eq_blocklength",0,...
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% "eq_updatelatency",0);
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% 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);
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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);
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for clipfactor = wh.parameter.clipfactor.values
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% TX model
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[El,Bits,Ref] = tx_model(fsym,Pmap,Pform,Awg,"clipfactor",clipfactor);
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% Laser and Modulation
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El = Lp_mod.process(El);
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El = Amplifier("amp_mode","ideal_no_noise","gain_mode","gain","amplification_db",15).process(El);
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pwr_ = El.power; % in dbm into 50 ohm
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papr_ = papr(El.signal);
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vpk_ = max(abs(El.signal));
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vswing_ = max(El.signal)-min(El.signal);
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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'];
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disp(awg_string);
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for laser_linewidth = wh.parameter.laser_linewidth.values
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for pn_key = wh.parameter.pn_key.values
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for vbias_rel = wh.parameter.vbias_rel.values
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u_pi = 2.9;
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vbias = -vbias_rel*u_pi;
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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);
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% El = El.normalize("mode","oneone").*u_pi.*0.4;
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[modulated,extmodlaser] = extmodlaser.process(El);
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if 1
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figure(10)
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hold on
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scatter(El.signal(1:100000)+vbias,(abs(modulated.signal(1:100000)).^2)*1e3,0.1,'.','DisplayName','Modulator TF')
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ylim([0 4]);
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xlim([-u_pi/2, u_pi/2]+vbias);
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xlabel('Input in V')
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ylabel('abs(Output) in mW')
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% Define properties
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boxPosition = [0.15 0.86 0.2 0.05]; % Position for the first box [x y width height]
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boxColor = [0.9 0.9 0.9]; % Light grey background color
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boxEdgeColor = 'k'; % Black edge color
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boxLineStyle = '--'; % Dashed line style
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boxFontWeight = 'bold'; % Bold font
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% Create first annotation box for Power
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annotation('textbox', boxPosition, ...
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'String', ['V pi: ',num2str(u_pi),' V'], ...
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'BackgroundColor', boxColor, ...
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'EdgeColor', boxEdgeColor, ...
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'LineStyle', boxLineStyle, ...
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'FontWeight', boxFontWeight, ...
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'HorizontalAlignment', 'center');
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% Adjust position for the second box (slightly to the right)
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boxPosition = [0.37 0.86 0.2 0.05]; % Adjusted position
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% Create second annotation box for PAPR
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annotation('textbox', boxPosition, ...
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'String', ['V bias: ',num2str(vbias),' V'], ...
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'BackgroundColor', boxColor, ...
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'EdgeColor', boxEdgeColor, ...
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'LineStyle', boxLineStyle, ...
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'FontWeight', boxFontWeight, ...
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'HorizontalAlignment', 'center');
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modulated.eye(fsym,M);
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modulated.spectrum("fignum",112,"displayname",'transmit spectrum');
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modulated = Lp_opt.process(modulated);
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end
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er = modulated.extinctionratio(fsym,M);
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if 1
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m_ = wh.parameter.mpi_pathlen.length;
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j_ = wh.parameter.sir.length;
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i_ = wh.parameter.rop.length;
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ber=zeros(m_,j_,i_);
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patten=zeros(m_,j_,i_);
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for m = 1:m_
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mpi_path = wh.parameter.mpi_pathlen.values(m);
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for j = 1:j_
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sir = wh.parameter.sir.values(j);
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% MPI Channel
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Opt = channel_model_mpi(modulated,link_length,mpi_path,sir);
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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);
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patten(m,j,i) = Rx_sig.power;
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% RX Model
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Rx_bits = rx_model(Rx_sig,Ref,Phd,Lp_phd,Scp,Eq,Pmap);
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% BER
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[~,errors_bm,ber(m,j,i),errors] = calc_ber(Rx_bits.signal,Bits.signal,"skip_front",100,"skip_end",150,"returnErrorLocation",1);
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cnt = cnt+1;
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disp(['BER: ',sprintf('%.1E',ber(m,j,i)),' - - ROP: ',num2str(Rx_sig.power),'dBm - - PAM-',num2str(M),' - - ',num2str(fsym*1e-9),' GBd']);
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end
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end
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end
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for m = 1:m_
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mpi_path = wh.parameter.mpi_pathlen.values(m);
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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(m,j,i),'ber',M,datarate,sir,mpi_path,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
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wh.addValueToStorage(patten(m,j,i),'rop',M,datarate,sir,mpi_path,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
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wh.addValueToStorage(er,'er',M,datarate,sir,mpi_path,laser_linewidth,pn_key,vbias_rel,rop,clipfactor,rrcalpha);
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end
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end
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end
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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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save(['C:\Users\Silas\Documents\MATLAB\imdd_simulation\projects\MPI_Juni\',name,'.mat'],"wh");
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end
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end
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end
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end
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end
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end
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