62 lines
2.7 KiB
Mathematica
62 lines
2.7 KiB
Mathematica
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%%
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function [BER,PER,SyncErr] = ExecutedMAIN0701(PacketSize, NumerologySel, MCS_no, ChanPara, FreqCarrier, FrameNo, seed_set)
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[SysParameters,WaveformPara] = WaveformNumerologyCal(PacketSize,NumerologySel,MCS_no);
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%% TX
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rng(seed_set(1),'twister');
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dataPacketBits = randi([0 1],WaveformPara.Payload,1);
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scrData = TX_CRC32_Scramble(dataPacketBits);
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trellis = poly2trellis(7,[171 133]);
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tx_encoded_bit = convenc(scrData,trellis,WaveformPara.puncpat);
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tx_padded_bit = [tx_encoded_bit;zeros(WaveformPara.DataPadding,1)];
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%---------------------------------------------
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dataMod = qammod(tx_padded_bit,WaveformPara.Mod,'InputType','bit');
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WaveformPara.Power_sym = mean(abs(dataMod).^2);
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dataMod = reshape(dataMod,WaveformPara.UsedSubcarrier,[]);
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%% 获取信道响应 %假设已知前一时刻的信号
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% 生成信道响应
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N_carriers = WaveformPara.N_FFT;
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channel_response=sqrt(1/2)*(randn(1,N_carriers)+1i*randn(1,N_carriers));
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% 窗的数目
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N_windows = 8;
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% 定义量化水平总数
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N_level = 10;
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% 最小CP值，外部条件，取决于最大延迟拓展，有最小CP值>最大延迟拓展
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min_len_CP = 30;
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% 测试函数
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CPset = Generate_CP(channel_response,N_windows,N_level,min_len_CP);
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% 物理层加密
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[serialOFDMsym,WaveformPara.pilot,myFrameLen] = tx_FFTSymbolGen_PilotBlockPN(dataMod,WaveformPara,CPset); % 加CP的地方
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WaveformPara.Power_sig = mean(abs(serialOFDMsym).^2);
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[WaveformPara.preamble,WaveformPara.c1,WaveformPara.c2] = ...
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generatePreamble(WaveformPara,WaveformPara.Power_sig); % hb:这里前导码的目的是什么？
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txSignal = [WaveformPara.preamble;serialOFDMsym];
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% RFSignal = RFimpairment(txSignal, FreqCarrier);
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% 分两块，发送 接收
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%% Channel
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[rxSignal,ChanPara] = PassChan(txSignal,WaveformPara,SysParameters,ChanPara,seed_set(2));
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% SIR = InterfCal(rxSignal,ChanPara);
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%% RX
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[rxSignal_sync,SyncErr] = rxSyncSC(rxSignal,WaveformPara,myFrameLen);
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[rxDataModLs] = rx_PilotBlockChanEst(rxSignal_sync,ChanPara,WaveformPara,CPset,SysParameters); % 去CP的地方
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dataDemod = qamdemod(rxDataModLs,WaveformPara.Mod,'OutputType','approxllr', ...
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'UnitAveragePower',false,'NoiseVariance',ChanPara.N0);
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dataDePadded = dataDemod(1:end - WaveformPara.DataPadding);
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tb = 8;
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decoded = vitdec(dataDePadded,trellis,tb,'trunc','unquant',WaveformPara.puncpat);
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[rx,PER] = RX_CRC32_deScramble(decoded);
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[numErrors,BER] = biterr(dataPacketBits,rx);
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end
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%%
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