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Discussion Groups | Matlab DSP | no of subcarriers in OFDM

Technical discussion about Matlab and issues related to Digital Signal Processing.

  

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no of subcarriers in OFDM - jahn...@yahoo.co.in - Dec 22 7:55:47 2006



  I am doing a project related to OFDM. My doubt is whether the no of subcarriers and the
IFFT size should be equal or not?


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Re: no of subcarriers in OFDM - Amit Pathania - Dec 26 9:13:33 2006

No, the number of subcarriers and FFT size can be different as long a subcarriers are less
than the FFT size. Usually the channel dictates how you populate the bins; for eg: in a high
doppler channel the data subcarriers are usually interlaced with "OFF" subcarriers.
hope this helps

j...@yahoo.co.in wrote:          I am doing a project related to OFDM. My doubt is whether the
no of subcarriers and the IFFT size should be equal or not?
         
Amit Pathania


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