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rayleigh simulation problem,need help???

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mtelastal

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helllllooo every body
I have simulted the 8 psk under raylegih flat fading channel
as illustrated in attachment and I compared it with theortical formula of 8psk using ber fading
but I have problem there is mismatach between two result as shown in figure

 

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RBB

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Looks like your Eb/N0 calculations are off.
 

mtelastal

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Looks like your Eb/N0 calculations are off.
what do you mean??

how can I solve the problem to have a matching between thortical and simulation results????????
 

RBB

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How are you calculating and adding the noise?
 

mtelastal

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How are you calculating and adding the noise?
plz, if u can check the matlab file in the attachment and reply to me where is the error??

thanks for your reply.
 

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