Joint Shuffled Scheduling Decoding Algorithm for DP-LDPC Codes-Based JSCC Systems

Zhiping Xu, Lin Wang, Shaohua Hong, Francis C.M. Lau, Chiu Wing Sham

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

In this letter, a joint shuffled scheduling decoding algorithm for double-protograph low-density parity-check (DP-LDPC) codes-based joint source-channel coding (JSCC) schemes is presented. The proposed algorithm adopts the shuffled scheduling method to both source decoder and channel decoder, and can improve convergence speed and reduce the decoding complexity. In addition, a unique phenomenon named unequal convergence rates is revealed at the same time. The proposed algorithm can terminate this phenomenon with faster decoding. The results show that this algorithm has faster convergence speed and better error performance, compared with the traditional joint belief propagation (BP) decoding algorithm.

Original languageEnglish
Article number8815836
Pages (from-to)1696-1699
Number of pages4
JournalIEEE Wireless Communications Letters
Volume8
Issue number6
DOIs
Publication statusPublished - Dec 2019

Keywords

  • belief propagation
  • DP-LDPC codes
  • JSCC
  • shuffled scheduling

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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