receiver.m

stbc for flat rayleigh fading channel

function rec=receiver(H,temp_data_trans,n,Nr)

if(Nr==1)
    r1=H(1,:)*temp_data_trans+sum(n(1,:));
    rec=[r1];
elseif(Nr==2)
    r1=H(1,:)*temp_data_trans+sum(n(1,:));
    r2=H(2,:)*temp_data_trans+sum(n(2,:));
    rec=[r1;r2]/2;
elseif(Nr==4)
    r1=H(1,:)*temp_data_trans+sum(n(1,:));
    r2=H(2,:)*temp_data_trans+sum(n(2,:));
    r3=H(3,:)*temp_data_trans+sum(n(3,:));
    r4=H(4,:)*temp_data_trans+sum(n(4,:));
    rec=[r1;r2;r3;r4]/4;
end