Rayleigh fading program example

• z = randn(1)
• sigma = 1;
• x1=sigma*sqrt(-2*log(1-z))
• histogram(x1,'Normalization','pdf')
• x=linspace(0,6,100);
• pdf=x/sigma^2.*exp((-x.^2)/(2*sigma^2))
• hold on
• plot(x,pdf,'r')
• legend('Rayleigh','test')

I am trying to implement rayleigh fading here. Furthermore, I am trying to implement in my Spread spectrum program. Can anyone help me in providing their suggestion if this piece of code would work or not???

Also, what is the best method to use rayleigh in spread spectrum. should I multiply the pdf value to the receved signal in my system or is there any other method to do so??