rayleigh flat fading vs frequency selective fading ofdm

anta said:

Hi all!
I have simulated a rayleigh flat fading channel (ofdm) and a frequency selective exponential channel in which every tap follows rayleigh distribution,thus every tap 'sees' a flat rayleigh channel (due to ofdm)...is this right? However i wonder what the plot would be? The plot (BER vs SNR) is almost the same for both cases?
This is right,isn't it?

Thank you in advance

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commworld said:

how many taps hav u used?? are they real or imaginary??

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Communications_Engineer said:

wow... 30 taps is too much, are you sure your modem is designed properly?

How much is the length of the CP and the number of subcarriers

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