Optimizing the Error Recovery Capabilities of LDPC-Staircase Codes Featuring a Gaussian Elimination Decoding Scheme: Preliminary Results

Mathieu Cunche 1 Vincent Roca 1
1 PLANETE - Protocols and applications for the Internet
Inria Grenoble - Rhône-Alpes, CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : The erasure recovery capabilities of LDPC-Triangle and LDPC-Staircase codes can be greatly improved by means of a Gaussian elimination decoding scheme . Thanks to this decoding, the LDPC-Triangle codes are now very close to an ideal code. The LDPC-Staircase codes are also improved but they are not as close to an ideal code as the LDPC-Triangle codes are. Furthermore, for some code rates, the performances of the LDPC-Staircase codes diverge from their asymptotic behavior. This document studies the influence of the N1 parameter of the LDPC-Staircase codes, i.e., the target number of '1s' per column, which in turn controls the left degree of source symbols, on the erasure recovery capabilities of the codes when a Gaussian elimination decoding scheme is used.
Type de document :
Pré-publication, Document de travail
2008
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https://hal.inria.fr/inria-00271430
Contributeur : Mathieu Cunche <>
Soumis le : mercredi 9 avril 2008 - 09:59:24
Dernière modification le : mercredi 11 avril 2018 - 01:51:36
Document(s) archivé(s) le : jeudi 20 mai 2010 - 23:09:08

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ldpc_gauss_and_left_degree.pdf
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  • HAL Id : inria-00271430, version 1

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Mathieu Cunche, Vincent Roca. Optimizing the Error Recovery Capabilities of LDPC-Staircase Codes Featuring a Gaussian Elimination Decoding Scheme: Preliminary Results. 2008. 〈inria-00271430〉

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