ofdmda_ofdmfading_plot.asv

这些代码包括ofdm的实现和信道估计,可以运行,有指导程序的说明文档.

%以为2经的瑞利衰落的ofdmda and ofdm_fading 的性曲比
clear all;
close all;
itau1=[0,2];       % Arrival time for each multipath normalized by tstp 
dlvl11=[0,10];      % Mean power for each multipath normalized by direct wave.
n01=[6,7];	        % Number of waves to generate fading n0(1),n0(2)
th11=[0.0,0.0];      % Initial Phase of delayed wave
itnd11=[1000,2000];   % set fading counter        	
now11=2;         % Number of directwave + Number of delayed wave
fd1=150;         % Maximum Doppler frequency
flat1=1;         % Flat or not (see ofdm_fading.m)
SNRindB1=0:1:10;
for i=1:length(SNRindB1)
  [smld_err_prb(i)]=ofdm_fading1(SNRindB1(i),itau1,dlvl11,n01,th11,itnd11,now11,fd1,flat1);	% simulated error rate
end;
 semilogy(SNRindB1,smld_err_prb,'-ob');
 hold on;
 
for i=1:length(SNRindB1)
 [smld_err_prb(i)]=ofdmda1(SNRindB1(i),itau1,dlvl11,n01,th11,itnd11,now11,fd1,flat1);	% simulated error rate
end;
title('2径瑞利衰落');
 semilogy(SNRindB1,smld_err_prb,'-*r');xlabel('信噪比 db');
 ylabel('误码率');
 h=legend('无补偿','有补偿',2);