An improved iterative decoding algorithm of rate-compatible punctured LDPC codes

Research output: Contribution to journalArticle

Abstract

An improved iterative decoding algorithm of rate-compatible punctured low-density parity-check (RCP-LDPC) codes is developed. This algorithm performs a pre-determined recovering process of punctured bits sums at the beginning of each iteration of the standard belief-propagation (BP) decoding algorithm. By propagating messages of two punctured bits sum, this algorithm can recover much more punctured bits than the standard BP decoding algorithm. It is shown that the proposed algorithm is applicable for RCP-LDPC codes of higher coding rates with little increase of decoding complexity.

Original languageEnglish
Pages (from-to)133-149
Number of pages17
JournalFar East Journal of Electronics and Communications
Volume15
Issue number2
DOIs
Publication statusPublished - 2015 Dec 1
Externally publishedYes

Keywords

  • BP decoding
  • LDPC code
  • Rate-compatible punctured code

ASJC Scopus subject areas

  • Computer Science(all)
  • Electrical and Electronic Engineering

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