FFT processor for OFDM channel estimation

Pilot-assisted channel estimation for communication systems employing orthogonal frequency division multiplexing modulation requires significant signal processing at the receiver if the correlation among the frequency-domain channel coefficients is to be exploited in order to improve accuracy. In this work, a conventional FFT processor is extended to support all operations required by a selected channel estimation algorithm, so that both OFDM de/modulation and channel estimation can be efficiently performed on the same hardware unit. The silicon complexity of the extended processor, which was prototyped in a real-time testbed using FPGAs, is compared to a conventional FFT processor.


Published in:
2007 Ieee International Symposium On Circuits And Systems, Vols 1-11, 1417-1420
Presented at:
IEEE International Symposium on Circuits and Systems, New Orleans, LA, May 27-30, 2007
Year:
2007
Publisher:
Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa
ISBN:
978-1-4244-0920-4
Laboratories:




 Record created 2011-06-06, last modified 2018-03-17


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)