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Fast parallel implementation of Feng-Rao algorithm with systolic array structure
Conference paper

Fast parallel implementation of Feng-Rao algorithm with systolic array structure

Chih-Wei Liu, Kuo-Tai Huang and Chung-Chin Lu
IEEE International Symposium on Information Theory - Proceedings, p.379
1997

Abstract

We develop a parallel implementation of Feng-Rao of algorithm with systolic array architecture by adopting a specially arranged syndrome matrix. The specially arranged syndrome matrix is in a nearly Hermitian or Hankel form. This parallel decoding architecture can correct up to t errors, where t is equal to half of the Feng-Rao bound, and has the time complexity (m+g+1) by using a series of (t+[(g-1)/2]+1) effective processors (or cells) and g trivial processors. The control circuit for the proposed systolic array architecture is quite simple and a circuit for performing the majority voting scheme is also developed. The proposed architecture without inclusion of the majority voting scheme requires totally t+[(g-1)/2] inversion circuits and (t+[(g-1)/2])(t+1+1[(g-1)/ 2]) multipliers. In a practical design, this hardware complexity is acceptable.

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