Design of Joint Source-Channel Coding Scheme Based on Spatially-Coupled DP-LDPC Codes

Research output: Journal article publicationJournal articleAcademic researchpeer-review


In this letter, we propose a novel joint source-channel code (JSCC) called spatially-coupled double-protograph-based low-density parity-check (SC-DP-LDPC) code. The SC-DP-LDPC code consists of a source spatially-coupled protograph-based low-density parity-check (SC-P-LDPC) code and a channel SC-P-LDPC code. Moreover, the two corresponding protomatrices are connected by a spatially-coupled source-check-channel-variable (SC-SCCV) linking protomatrix. Theoretical and simulation results show that the SC-DP-LDPC codes outperform JSCC systems based on state-of-the-art double protograph-based LDPC block codes or concatenated spatially-coupled LDPC codes.

Original languageEnglish
Pages (from-to)749-753
Number of pages5
JournalIEEE Communications Letters
Issue number4
Publication statusPublished - 1 Apr 2024


  • Double-protograph-based LDPC code
  • JSCC
  • spatially-coupled double-protograph-based LDPC code

ASJC Scopus subject areas

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering


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