AF协议DF协议以及无协作的系统误码率仿真分析对比

Posted 2021-08-09 fpga&matlab

clc;
clear;
close all;

xindao_SD=2;
xindao_SR=1;
xindao_RD=1.5;
M =16;   % 10种发射信噪比情况
R=2;
SNR_S = zeros(1,M);  % 源发射信噪比数组
SNR = zeros(1,M);   % 源发射信噪比（dB值）
Error_wu = zeros(1,M); % 中断概率实验值
Error_af = zeros(1,M);
Error_df = zeros(1,M);
Error_new = zeros(1,M);
for kk = 1:M
    kk
    SNR(kk) =kk;
    SNR_S(kk) = 10^(SNR(kk)/10);
    Error_wu(kk) = simu_yan(R,SNR_S(kk),xindao_SD); 
     Error_af(kk) = af_simu_yan(R,SNR_S(kk),xindao_SD,xindao_SR,xindao_RD);
      Error_df(kk) = df_simu(R,SNR_S(kk),xindao_SR,xindao_SD,xindao_RD);
      Error_new(kk)= new_simu_yan(R,SNR_S(kk),xindao_SR,xindao_SD);% 调用中断概率实验值求解函数
end
semilogy(SNR,Error_wu,'--d');
hold on
semilogy(SNR,Error_af,'--*');
hold on
semilogy(SNR,Error_df,'--+');
hold on
semilogy(SNR,Error_new,'--o');
xlabel('SNR/dB');
ylabel('Pr实验值');
legend('无协作','AF协议','DF协议','改进方法')

D99