www.gusucode.com > 基于Matlab的MIMO通信系统仿真 含报告；司中威；了解移动通信 > 基于Matlab的MIMO通信系统仿真 含报告；司中威；了解移动通信关键技术，了解数字通信系统仿真流程，实现基本的信道编译码、调制解调等通信模块。（好评如潮，课设拿满） 学习并实现MIMO空时处理技术 学习性能分析的思路和方法/mimo/matlab for mimo 2x2/test.m

    % Type of different detectors, parameters for Detector.m 
ML = 1;
JMMSE = 2;
ZF = 3;

% Type of different antenna selection criteria methods 
MBER = 1;
MMI = 2;
LAZY = 3;
MNP = 4;
MMNP = 5;
LAZY2 = 6;
BER=zeros(6,1);
real_ch = 0; % real_ch = 0 refers to simulated channel in MATLAB, 
nr_frames = 20; % number of frames sent when simulation.
sigma = 10^(-10);% avoid log 0

tx(nr_frames);

i= 1;
for SNR= 12:2:26
    
    disp(['Eb/No = ', num2str(SNR-6)]);
    EbN0(i) = SNR -6;
    RF(0,SNR);
    
    disp('ZF');
    tic
    BER(1,i) = rx(ZF,MMNP);
   
    BER(2,i) = rx(ZF,MBER);

    BER(3,i) = rx(ML,MMNP);

    BER(4,i) = rx(ML,MBER);
    
    BER(5,i) = rx(JMMSE,MMNP);

    BER(6,i) = rx(JMMSE,MBER);
     toc
    save('BER_EbN0_100_2','BER','EbN0');
%      BER(5,i) = rx(ML,MMNP);
    
%     disp('ML');
%     tic
%     BER(1,i) = rx(ML,MBER);
%     toc
% %     disp('JMMSE');
% %     tic
% %     BER(2,i) = rx(JMMSE,MBER);
% %     toc
%     BER(6,i) = rx(ZF,MNP);
%     BER(4,i) = rx(ML,MNP);
%     BER(5,i) = rx(JMMSE,MMI);
    
    i=i+1;
end

% figure;
% subplot(1,2,1)
% plot(BER(1,:),'r.');
% hold on;
% plot(BER(2,:),'b.');
% hold on;
% plot(BER(3,:),'k.');
% title('BER vs. Eb/N0 with different Detectors and MBER');
% legend('ML','JMMSE','ZF');
% 
% subplot(1,2,2)
% plot(BER(1,:),'r.');
% hold on;
% plot(BER(4,:),'r-.');
% title('BER vs. Eb/N0 with different selection method and ML');
% legend('MBER','MMI');

figure;
semilogy(EbN0,BER(1,:)+sigma,'r+-');
hold on;
 semilogy(EbN0,BER(2,:)+sigma,'r-.');
 hold on;
semilogy(EbN0,BER(3,:)+sigma,'k+-');
 hold on;
 semilogy(EbN0,BER(4,:)+sigma,'k-.');
 hold on;
 semilogy(EbN0,BER(5,:)+sigma,'b+-');
hold on;
semilogy(EbN0,BER(6,:)+sigma,'b-.');
title('BER vs. Eb/N0 with different Detectors and selection');
%legend('ML MBER','ML MMI','JMMSE MBER','JMMSE MMI','ZF MBER','ZF MMI');
legend('ZF MMNP','ZF MBER','ML MMNP','ML MBER','JMMSE MMNP','JMMSE MBER');