Performance versus Complexity Per Iteration for Low-Density Parity-Check Codes: An Information-Theoretic Approach

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dc.creatorSason, Igal
dc.creatorWiechman, Gil
dc.date2005-12-18
dc.date.accessioned2026-07-07T08:15:49Z
dc.date.available2026-07-07T08:15:49Z
dc.descriptionThe paper is focused on the tradeoff between performance and decoding complexity per iteration for LDPC codes in terms of their gap (in rate) to capacity. The study of this tradeoff is done via information-theoretic bounds which also enable to get an indication on the sub-optimality of message-passing iterative decoding algorithms (as compared to optimal ML decoding). The bounds are generalized for parallel channels, and are applied to ensembles of punctured LDPC codes where both intentional and random puncturing are addressed. This work suggests an improvement in the tightness of some information-theoretic bounds which were previously derived by Burshtein et al. and by Sason and Urbanke.
dc.descriptionAccepted for presentation in the Fourth International Symposium on Turbo Codes and Related Topics, Munich, Germany, 3--7 April, 2006
dc.identifierhttps://arxiv.org/abs/cs/0512075
dc.identifierhttp://arxiv.org/abs/cs/0512075
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/133573
dc.subjectInformation Theory
dc.titlePerformance versus Complexity Per Iteration for Low-Density Parity-Check Codes: An Information-Theoretic Approach
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