Joint source and channel coding

Maria Fresia, Fernando Pérez-Cruz, H. Vincent Poor, Sergio Verdu

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

The objectives of this article are two-fold: First, to present the problem of joint source and channel (JSC) coding from a graphical model perspective and second, to propose a structure that uses a new graphical model for jointly encoding and decoding a redundant source. In the first part of the article, relevant contributions to JSC coding, ranging from the Slepian-Wolf problem to joint decoding of variable length codes with state-of-the-art source codes, are reviewed and summarized. In the second part, a double low-density parity-check (LDPC) code for JSC coding is proposed. The double LDPC code can be decoded as a single bipartite graph using standard belief propagation (BP) and its limiting performance is analyzed by using extrinsic information transfer (EXIT) chart approximations.

Original languageEnglish (US)
Article number5563107
Pages (from-to)104-113
Number of pages10
JournalIEEE Signal Processing Magazine
Volume27
Issue number6
DOIs
StatePublished - Nov 2010

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering
  • Applied Mathematics

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