How Can speed up "for" loop ?
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Hi,
How can I speed up following 'for' loops? Help me please.Thanks.
N=1000 > 30sec , N=1000 > 10min , N=100000 > 5hr up can't produce result
N = 100000;
B= 0.3;
Pf=linspace(0.9,0.1,n);
data = randi([0,1],N, 1);
for k=1:2
Lambda= (1+sqrt(2/N)*qfuncinv(Pf))*var(wgn(N, 1,0) .* sqrt(p(k)/2));
for i = 1:length(Pf)
Nd_BPSK=0;
for j=1:N
noise_BPSK = wgn(N, 1,0) .* sqrt(p(k)/2);
h_BPSK = raylrnd(B, N, 1);
receive_BPSK = abs(h_BPSK).*send_BPSK + noise_BPSK;
T_simu_BPSK(i)=sum(abs(receive_BPSK).^2)/N;
if T_simu_BPSK(i) > Lambda(i)
Nd_BPSK=Nd_BPSK+1;
end
end
Pd_simu_BPSK(i,k)=Nd_BPSK/j;
end
for i = 1:length(Pf)
Nd_QPSK=0;
for j=1:N
noise_QPSK = wgn(N/2, 2, 0) .* sqrt(p(k)/2);
h_QPSK = raylrnd(B, N/2, 2);
receive_QPSK = abs(h_QPSK).*send_QPSK + noise_QPSK;
receive_QPSK2=reshape(receive_QPSK,N,1);
T_simu_QPSK(i)=sum(abs(receive_QPSK2).^2)/N;
if T_simu_QPSK(i) > Lambda(i)
Nd_QPSK=Nd_QPSK+1;
end
end
Pd_simu_QPSK(i,k)=Nd_QPSK/j;
end
end
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