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47 lines
1.5 KiB
Matlab
47 lines
1.5 KiB
Matlab
9 years ago
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clear
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addpath('../../build/srslte/lib/mimo/test')
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enb = lteRMCDL('R.10');
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cec = struct('FreqWindow',9,'TimeWindow',9,'InterpType','cubic');
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cec.PilotAverage = 'UserDefined';
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cec.InterpWinSize = 1;
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cec.InterpWindow = 'Causal';
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cfg.Seed = 1; % Random channel seed
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cfg.NRxAnts = 1; % 1 receive antenna
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cfg.DelayProfile = 'ETU'; % EVA delay spread
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cfg.DopplerFreq = 100; % 120Hz Doppler frequency
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cfg.MIMOCorrelation = 'Low'; % Low (no) MIMO correlation
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cfg.InitTime = 0; % Initialize at time zero
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cfg.NTerms = 16; % Oscillators used in fading model
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cfg.ModelType = 'GMEDS'; % Rayleigh fading model type
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cfg.InitPhase = 'Random'; % Random initial phases
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cfg.NormalizePathGains = 'On'; % Normalize delay profile power
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cfg.NormalizeTxAnts = 'On'; % Normalize for transmit antennas
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[txWaveform, ~, info] = lteRMCDLTool(enb,[1;0;0;1]);
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n = length(txWaveform);
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cfg.SamplingRate = info.SamplingRate;
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txWaveform = txWaveform+complex(randn(n,2),randn(n,2))*1e-3;
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rxWaveform = lteFadingChannel(cfg,txWaveform);
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rxGrid = lteOFDMDemodulate(enb,sum(rxWaveform,2));
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[h,n0] = lteDLChannelEstimate(enb,cec,rxGrid);
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signal=rxGrid(:,1);
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hest(:,1,1)=reshape(h(:,1,1,1),[],1);
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hest(:,1,2)=reshape(h(:,1,1,1),[],1);
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output_mat = lteTransmitDiversityDecode(signal(, hest(1:598,1,:));
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output_srs = srslte_diversitydecode(signal(1:598), hest(1:598,1,:));
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plot(abs(output_mat-output_srs))
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mean(abs(output_mat-output_srs).^2)
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