Alejandro perez wrote:
> Hi I would like to know how can I generate random numbers
> according to a
> chi(not chi squared).

Very unfrequently, I had similar experience to use this chi random
varible. I'd like to propose one simple method to do it which I used at
that time, and to ask one question: where to use it.

Let assume X(2,n) the random variable of n-th order chi2 distribution.
The random varible of the n-th order chi2 distribution X(1,n) is
generated by:

  X(1,n) = sqrt(X(2,n))*exp(j*2*Pi*theta),
  where theta is uniform random variable between 0 and 1.

Note that this is based on my understanding. This solution is sure
because the pdf of the power of X(1,n) is chi2 random varible.

BTW, where do you want to use this random variable. In my case, I needed
of this value for the numerical simulation of the communication system,
more specifically the diversity algorithm test.

In this article, the simple method to generate chi random variable was
denoted, and one question of the place to use this value is asked. 

Best,
Sungjin Kim, i-Networking Lab, Samsung AIT.
([EMAIL PROTECTED])

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