View Single Post
  #4 (permalink)  
Old 05-11-2006, 10:40 AM
A.D.
Guest
 
Posts: n/a
Default Re: [Newbie] 64-point complex FFT with 32 bit floating-point representation

"Franco Tiratore" <[email protected]> ha scritto nel messaggio
news:[email protected] ups.com...
> I'm currently trying to understand whether or not it is possible to
> implement a 802.11a-compliant OFDM modulator/demodulator on an FPGA.
> As far as I understand, the critical part of the project is the
> 64-point complex FFT with 32 bit floating-point representation (each
> real or complex number is represented in 32-bit floating-point).


We have developed an 802.11b baseband and MAC in an FPGA, and
we are trying to implement an 802.11g/a baseband processor as well.
The FFT module is one of the most simplest part of the design and can
be accomodated even in a small size FPGA. But you have to implement
it using fixed point! Floating point will be an overkill...
Other parts are far more challenging to implement then the simple FFT
module, and much more resources-consuming!


> I hope we can start a profitable discussion. :-)


If you want, you can drop me an email (for replying remov the "h"
from the address :-) )

Regards,
Antonio


Reply With Quote