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arXiv · 1211.5568

Computing coset leaders and leader codewords of binary codes

M. Borges-Quintana·M. A. Borges-Trenard·I. Márquez-Corbella·E. Martínez-Moro
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Abstract

In this paper we use the Gröbner representation of a binary linear code $\mathcal C$ to give efficient algorithms for computing the whole set of coset leaders, denoted by $\mathrm{CL}(\mathcal C)$ and the set of leader codewords, denoted by $\mathrm L(\mathcal C)$. The first algorithm could be adapted to provide not only the Newton and the covering radius of $\mathcal C$ but also to determine the coset leader weight distribution. Moreover, providing the set of leader codewords we have a test-set for decoding by a gradient-like decoding algorithm. Another contribution of this article is the relation stablished between zero neighbours and leader codewords.

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M. Borges-Quintana, M. A. Borges-Trenard, I. Márquez-Corbella, E. Martínez-Moro. 2014-11-03. Computing coset leaders and leader codewords of binary codes. https://arxiv.org/abs/1211.5568

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