Abstract

A novel algorithm-based fault tolerance scheme is proposed for fast Fourier transform (FFT) networks. It is shown that the proposed scheme achieves 100% fault coverage theoretically. An accurate measure of the fault coverage for FFT networks is provided by taking the roundoff error into account. It is shown that the proposed scheme maintains the low hardware overhead and high throughput of J.Y. Jou and J.A. Abraham's scheme and, at the same time, increases the fault coverage significantly. >

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