University of Oulu

Marwa Ben Abdessalem, Amin Zribi, Tadashi Matsumoto, Elsa Dupraz, Ammar Bouallègue, LDPC-based Joint Source Channel Coding and Decoding Strategies for single relay cooperative communications, Physical Communication, Volume 38, 2020, 100947, ISSN 1874-4907,

LDPC-based joint source channel coding and decoding strategies for single relay cooperative communications

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Author: Ben Abdessalem, Marwa1; Zribi, Amin1,2; Matsumoto, Tadashi3,4;
Organizations: 1University of Tunis El Manar, National Engineering School of Tunis, SysCom laboratory, BP 37, Le Belvedere, 1002, Tunis, Tunisia
2IMT Atlantique, Lab-STICC, UBL, 29238 Brest, France
3Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa, Japan
4Centre for Wireless Communications (CWC), University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Elsevier, 2020
Publish Date: 2021-11-30


This paper investigates new cooperative communication strategies based on Low-Density Parity-Check codes (LDPC) with Joint Source-Channel (JSC) coding and decoding algorithms to efficiently deliver a correlated content to a destination node. The proposed strategies rely on double LDPC codes where the source and the channel coding are similar to standard LDPC operations, and can be mapped on Tanner graphs for message-passing decoding. Three coding strategies are proposed where different LDPC source and channel coding setups are applied at the source node and the relay node. For each transmission strategy, we propose a graph mapping the whole network, over which iterative message-passing decoding is applied, and where the probability of errors in the source–relay link are taken into account. We showed, based on computer simulations, that the proposed strategies can provide substantial improvements compared to equivalent rates point-to-point systems. Simulation results also showed that the system performance depends on the relay position, and that adapting the source and the relay channel coding rates accordingly can enhance the overall system performance for a time-varying network.

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Series: Physical communication
ISSN: 1874-4907
ISSN-E: 1876-3219
ISSN-L: 1874-4907
Volume: 38
Article number: 100947
DOI: 10.1016/j.phycom.2019.100947
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This research is in part supported by the Young Researcher Project COMMUN (18PJEC11-01) funded by the Ministry of Higher Education and Scientific Research of Tunisia .
Copyright information: © 2019 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license