On the Thresholds of Generalized LDPC Convolutional Codes Based on Protographs

Michael Lentmaier, Gerhard Fettweis

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Abstract

A threshold analysis of terminated generalized LDPC convolutional codes (GLDPC CCs) is presented for the binary erasure channel. Different ensembles of protograph-based GLDPC CCs are considered, including braided block codes (BBCs). It is shown that the terminated PG-GLDPC CCs have better thresholds than their block code counterparts. Surprisingly, our numerical analysis suggests that for large termination factors the belief propagation decoding thresholds of PG-GLDPC CCs coincide with the ML decoding thresholds of the corresponding PG-GLDPC block codes.
Original languageEnglish
Title of host publication2010 IEEE International Symposium on Information Theory
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages709-713
ISBN (Print)978-1-4244-7890-3
DOIs
Publication statusPublished - 2010
EventIEEE International Symposium on Information Theory (ISIT), 2010 - Austin, Texas, Austin, Texas, United States
Duration: 2010 Jun 132010 Jun 18

Conference

ConferenceIEEE International Symposium on Information Theory (ISIT), 2010
Country/TerritoryUnited States
CityAustin, Texas
Period2010/06/132010/06/18

Subject classification (UKÄ)

  • Electrical Engineering, Electronic Engineering, Information Engineering

Free keywords

  • spatial coupling
  • LDPC codes
  • generalized LDPC codes
  • GLDPC codes

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