Evaluation of Radix-2 and Radix-4 FFT processing on a reconfigurable platform

In this paper, we present the mapping of Radix-2 and Radix-4 FFT algorithms using CREMA, a Coarse-Grain Reconfigurable Array (CGRA) with mapping adaptiveness. CREMA is employed to generate special purpose accelerators tailored on the specified mapping. We analyze the results for 64-point FFT targete...

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Bibliographic Details
Main Authors: Hussain, Waqar, Garzia, Fabio, Nurmi, Jari
Format: Conference Proceeding
Language:English
Subjects:
Adaptive arrays
Digital signal processing
Hardware
Kernel
Multiaccess communication
OFDM
Parallel processing
Signal processing algorithms
Testing
Throughput
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Summary:In this paper, we present the mapping of Radix-2 and Radix-4 FFT algorithms using CREMA, a Coarse-Grain Reconfigurable Array (CGRA) with mapping adaptiveness. CREMA is employed to generate special purpose accelerators tailored on the specified mapping. We analyze the results for 64-point FFT targeted for OFDM processing. Both of the implementations are (4-5X) smaller and showed a speed-up of 4X when compared with a general-purpose CGRA.
DOI:10.1109/DDECS.2010.5491775