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FPGA implementation of a re-configurable FFT for multi-standard systems in software radio context

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2 Author(s)
Ali Al Ghouwayel ; SUPELEC - IETR, Avenue de la Boulaie - CS 47601, 35576 Cesson-Sévigné cedex, France ; Yves Louet

This study is focused on the field programmable gate array (FPGA) implementation of a reconfigurable fast Fourier transform (FFT) operator able to provide Fourier transforms both over infinite complex field C and Galois finite field GF. This reconfigurable FFT exploits to a great advantage the possibility to share hardware resources when considering multi-standard scenario for software radio systems. A reconfigurable FFT of length N=256 has been implemented on FPGA/STRATIX II. It achieves a performance-to-cost ratio gain from 24% to 9.4% compared to the basic duplicated solution for which no reconfiguration is considered.

Published in:

2009 Digest of Technical Papers International Conference on Consumer Electronics

Date of Conference:

10-14 Jan. 2009