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URGENT HELP REQUIRED - QAM DOESNT GIVE ME CORRECT BER

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naheem84

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URGENT HELP REQUIRED

I AM IMPLEMENTING THE PAPER
A SIMPLE TRANSMIT DIVERSTY TECHINIQUE FOR WIRELESS COMMUNICATION
BY SIAVISH M ALAMOUTI IN MATLAB.
THE PROBLEM IA FACING IS THAT I AM USING PSK AND QAM MODULATION
THE CODE WORKS WELL WITH PSK MODULATION BUT WHEN IT IS UP TO QAM IT DOESNT GIVE ME CORRECT BER FOR M>4 I AM USING EQUATION NUMBER 4 OF THAT PAPER FOR ML DETCTION
 

URGENT HELP REQUIRED

what is the source of this paper please
 

URGENT HELP REQUIRED

Hi freind
I am not deeply experience in this topic but let us speak about your program as i think the problem is inside your program,
 

Re: URGENT HELP REQUIRED

yeah u are right the problem was that matlab was considering the imaginary values as well when i try to calculate the ber it was not cosidering the values with imaginary parts
 

URGENT HELP REQUIRED

Hi Dear, I am very hapy that you found out the problem. Keep good work.

Montadar
 

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