dl_demodulation_04.m

matlab code for 16qam modulator

function estimated=DL_Demodulation_04(s)
%% Demodulation
k=1;
for m=1:length(s)
    if(real(s(m))>=0)
        estimated(k)=0;
    else estimated(k)=1;
    end
    if(imag(s(m))>=0)
        estimated(k+1)=0;
    else estimated(k+1)=1;
    end
    if(abs(real(s(m)))<=(2/sqrt(10)))
        estimated(k+2)=0;
    else estimated(k+2)=1;
    end
    if(abs(imag(s(m)))<=(2/sqrt(10)))
        estimated(k+3)=0;
    else estimated(k+3)=1;
    end
    k=k+4;
end