Cooperative relaying with low-density lattice coding and joint iterative decoding

Bin Chen, Dushantha Nalin K. Jayakody, Mark F. Flanagan

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

4 Citaten (Scopus)

Samenvatting

Low-density lattice codes (LDLCs) are known for their high decoding efficiency and near-capacity performance on point-to-point Gaussian channels. In this paper, we present a distributed LDLC-based cooperative relaying scheme for the multiple-access relay channel (MARC). The relay node decodes LDLC coded packets from two sources and forwards a network-coded combination to the destination. At the destination, a joint iterative decoding structure is designed to exploit the diversity gain as well as coding gain. For the LDLC-based network coding operation at the relay, we consider two alternative methods which offer a tradeoff between implementation complexity and performance, called superposition LDLC (S-LDLC) and modulo-addition LDLC (MA-LDLC). Simulation results show that the proposed scheme can provide more diversity gain and up to 6.2 dB coding gain when compared with non-cooperative LDLC coding and uncoded network-coded transmission.

Originele taal-2Engels
TitelInternational Symposium on Turbo Codes and Iterative Information Processing, ISTC
Plaats van productieBrussels
UitgeverijIEEE Computer Society
Pagina's254-258
Aantal pagina's5
ISBN van elektronische versie978-1-4799-5985-3
ISBN van geprinte versie978-1-4799-5986-0
DOI's
StatusGepubliceerd - 1 jan 2014
Evenement8th International Symposium on Turbo Codes and Iterative Information Processing (ISTC 2014) - Bremen, Duitsland
Duur: 18 aug 201422 aug 2014
Congresnummer: 8

Congres

Congres8th International Symposium on Turbo Codes and Iterative Information Processing (ISTC 2014)
Verkorte titelISTC 2014
Land/RegioDuitsland
StadBremen
Periode18/08/1422/08/14

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