channel.m

程序是MIMO-OFDM系统下

function R=channel(fd,deltaT,NS,M,N,Power,Delay,Tx_data)
ht=Tap_Rayleigh_Jakes(fd,deltaT,NS,M,N);
%Noise=0;
R=zeros(N,NS);

%r_data=Tx.*(h+Noise);
for rn=1:1:N
    
r_data=zeros(M,NS);
for k=1:1:length(Power)
    temp_d=zeros(M,NS);
    temp_d(:,Delay(k)+1:Delay(k)+length(Tx_data))=sqrt(Power(k))*Tx_data;
    r_data=r_data+temp_d.*ht(M*(rn-1)+1:M*rn,:);
end
%r_data=Tx;

for am=1:1:M
    R(rn,:)=R(rn,:)+r_data(am,:);
end
end