Density evolution analysis of spatially coupled LDPC codes over BIAWGN channel

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Abstract

In this paper, we study the density evolution analysis of spatially coupled low-density parity-check (SC-LDPC) codes over binary input additive white Gaussian noise (BIAWGN) channels under the belief propagation (BP) decoding algorithm. Using reciprocal channel approximation and Gaussian approximation, we propose averaging techniques for the density evolution of SC-LDPC codes over BIAWGN channels. We show that the proposed techniques can closely predict the decoding threshold while offering reduced complexity compared to the existing multi-edge-type density evolution.

Original languageEnglish
Title of host publication2016 Australian Communications Theory Workshop, AusCTW 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages13-17
Number of pages5
ISBN (Electronic)9781509001330
DOIs
Publication statusPublished - 14 Mar 2016
Externally publishedYes
EventAustralian Communications Theory Workshop, AusCTW 2016 - Melbourne, Australia
Duration: 20 Jan 201623 Jan 2016

Publication series

Name2016 Australian Communications Theory Workshop, AusCTW 2016

Conference

ConferenceAustralian Communications Theory Workshop, AusCTW 2016
Country/TerritoryAustralia
CityMelbourne
Period20/01/1623/01/16

Keywords

  • decoding threshold
  • density evolution
  • Spatially coupled low-density parity-check codes

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