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Soft error detection and correction for FFT based convolution using different block lengths

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4 Author(s)
Reviriego, P. ; Univ. Antonio de Nebrija, Madrid, Spain ; Maestro, Juan Antonio ; O'Donnell, A. ; Bleakley, Chris J.

The structure of radix-2 Fast Fourier Transforms of length 2n where n is an integer is used to propose a new soft error detection and correction scheme for transform based convolution. The scheme can provide up to 100% detection and correction of isolated soft errors for, in many cases, approximately double the original system cost in terms of area and/or computational complexity. This is a substantial reduction when compared with conventional Triple Modular Redundancy. The method can be used for both hardware and software implementations of transform-based convolution.

Published in:

On-Line Testing Symposium, 2009. IOLTS 2009. 15th IEEE International

Date of Conference:

24-26 June 2009