calculfirlms.asv

Signature estimation using LMS algorith for CDMA systems

function [prb prb1] = calculFIR2(snr_in_dB,h,W,B)
E = 1; numoferr = 0;numoferr1 = 0;
SNR = 10^(snr_in_dB/10);         % signal to noise ratio
sgma = (E/sqrt(2*SNR));
w1 = W(:,1);
w2 = W(:,2);
w3 = W(:,3);
w4 = W(:,4);
signat = 0.5*hadamard(4);% sigma, standard deviation of noise
N = 1000;
for i = 1:N
    r = signat*B(:,i) + sgma*(randn(4,1)); 
    MF = S'*r;
    decision = decide(MF);
    err_MF(i) = calculerr(decision,B(:,i));
end
prb = numoferr/(4*N);
prb1 = numoferr1/(4*N);