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I try to make a comparaison between the ML,MMSE,ZF, SD
decoders in terms of Ber Performance using a 4QAM modulation.Can you help
me to do this. Thank you
This a code 2*2 Alamounti used a 16QAM modulation:
clc
clear all;
close all;
M=16;
N = 10^6; % number of bits or symbols
snr=linspace(0,20,21);
h11 = 1/sqrt(2)*(randn(1,N/2) + 1i*randn(1,N/2));
h12 = 1/sqrt(2)*(randn(1,N/2) + 1i*randn(1,N/2));
h21 = 1/sqrt(2)*(randn(1,N/2) + 1i*randn(1,N/2))...
This code shows the capacity of MIMO system:
clear all
clc
%Shannon capacity
snr=0;
for i = 1:10
snr = snr +2;
c=(log(1+10^(snr/10)))/log(2);
x(i)=snr;
y(i)=c;
end
figure
plot(x,y,'bp-','LineWidth',1.5)
hold on
% capacity of MIMO Link with NR=2, NT=2
NR=2;
rand('state',456321)
snr=0;
for...
This code is for 4QAM modulation , it help you to understand this modulation and use this function to complete your code:
function s=modulation_4_qam(m,n)
%modulation 4 qam
i=sqrt(-1);
for I=0:n-1,
if m(2*I+1)==1 & m(2*I+2)==1 s(I+1)=-1-i;
elseif m(2*I+1)==1 & m(2*I+2)==-1...
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