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Multi-Trial Guruswami--Sudan Decoding for Generalised Reed--Solomon Codes

Johan Sebastian Rosenkilde Nielsen, Alexander Zeh

International Workshop on Coding and Cryptography (WCC) (2013), 2013

Abstract

An iterated refinement procedure for the Guruswami--Sudan list decoding algorithm for Generalised Reed--Solomon codes based on Alekhnovich's module minimisation is proposed. The method is parametrisable and allows variants of the usual list decoding approach. In particular, finding the list of \emph{closest} codewords within an intermediate radius can be performed with improved average-case complexity while retaining the worst-case complexity.

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