I'm having trouble observing OFDM with a raised cosine (RC) window in Matlab.

I know how to generate an OFDM signal with a raised cosine (RC) window, I just don't understand when the last W samples of an OFDM symbol are added to the first W samples of the successive symbol, its spectrum changes compared with no overlap(the OOB is nearly same with no windowing).

I don't know if something wrong with my matlab code about how to see overlapped windowing-OFDM, or overlap would influence per symbol's spectrum?

  • $\begingroup$ @ Deve Could you please answer my question? $\endgroup$ – Siqi Mu Jun 8 '16 at 10:01
  • $\begingroup$ I think we need more info. Is the window applied in time or frequency domain? Can you desribe it mathematically? What outcome do you excpect? I expect the spectrum to change, this is usually the purpose of windowing. $\endgroup$ – Deve Aug 7 '16 at 9:06

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