Use this as start point:

clear all; clc;

L=3;

sLen=10;

x=randn(sLen,1);

x=x/norm(x);

H=randn(L,sLen);

s=H*x;

thr=3;

nIter=10000;

pd=0; pa=0;

pd2=0; pa2=0;

for f=1:nIter;

y=s+randn(L,1);

if s'*y> thr

pd=pd+1;

end

end

for f=1:nIter;

y=randn(L,1);

if s'*y> thr

pa=pa+1;

end

end

plot(pa,pd,'*');

As i have referred the following reference IEEE paper

1. A Survey of Spectrum Sensing Algorithms for Cognitive Radio Applications

by Tevfik Y¨ucek and H¨useyin Arslan.

2, Building A Cognitive Radio Network Testbed by Zhe Chen, Nan Guo, and Robert C. Qiu

Use this as start point:

clear all; clc;

L=3;

sLen=10;

x=randn(sLen,1);

x=x/norm(x);

H=randn(L,sLen);

s=H*x;

thr=3;

nIter=10000;

pd=0; pa=0;

pd2=0; pa2=0;

for f=1:nIter;

y=s+randn(L,1);

if s'*y> thr

pd=pd+1;

end

end

for f=1:nIter;

y=randn(L,1);

if s'*y> thr

pa=pa+1;

end

end

plot(pa,pd,'*');

Sir can you suggest me a good paper in order to understand this matlab coding.