正确方法S1G穿过TGah信道& AWGN吗?

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迈克Dachui 2020年5月15日

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这个问题直接联系

//www.tianjin-qmedu.com/matlabcentral/answers/525597-correct-way-to-pass-s1g-through-tgah-channel-awgn

这是通过正确的路吗 S1G 波形通过 TGah 通道和情况下吗?

我有两个方法但不知道哪个是正确的:( 2 x2米姆 ,TGah Pathloss和阴影 ”)

                         cfgS1G = wlanS1GConfig;
                        
                         cfgS1G。ChannelBandwidth =“CBW2”;% 2 MHz通道带宽
                        
                         cfgS1G。序言=“短”;%短暂的序言
                        
                         cfgS1G。NumTransmitAntennas = 2;% 2传输天线
                        
                         cfgS1G。NumSpaceTimeStreams = 2;% 2时空流
                        
                         cfgS1G。MCS = 3;
                        
                         txPSDU =兰迪([0,1],cfgS1G.PSDULength * 8, 1);
                        
                         txWaveform = wlanWaveformGenerator (txPSDU cfgS1G);
                        
                         %创建和配置TGah通道
                        
                         tgahChannel = wlanTGahChannel;
                        
                         tgahChannel。DelayProfile =“f型”;
                        
                         tgahChannel。NumTransmitAntennas = cfgS1G.NumTransmitAntennas;
                        
                         tgahChannel。NumReceiveAntennas = 2;
                        
                         tgahChannel。TransmitReceiveDistance = 50;
                        
                         tgahChannel。ChannelBandwidth = cfgS1G.ChannelBandwidth;
                        
                         tgahChannel。LargeScaleFadingEffect =“Pathloss和阴影”;
                        
                         awgnChannel = comm.AWGNChannel;
                        
                         awgnChannel。NoiseMethod =信号噪声比(信噪比)的;
                        
                         awgnChannel。信噪比= 20;

第一:

rxWaveform = awgnChannel (tgahChannel (txWaveform));

2号:

                         preChSigPwr_dB = 10 * log10(意味着(abs (tx)));
                        
                         sigPwr1 = 10 ^ (preChSigPwr_dB (1) -tgahChannel.info.Pathloss) / 10);
                        
                         sigPwr2 = 10 ^ (preChSigPwr_dB (2) -tgahChannel.info.Pathloss) / 10);
                        
                         sigPwr = [sigPwr1, sigPwr2];
                        
                         awgnChannel。SignalPower = sigPwr;
                        
                         rxWaveform = awgnChannel (tgahChannel (txWaveform));