Spatially-coupled LDPC coding in cooperative wireless networks

Dushantha Nalin K. Jayakody, Vitaly Skachek, Bin Chen

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

This paper proposes a new technique of spatially-coupled low-density parity-check (SC-LDPC) code-based soft information relaying scheme for a two-way relay system. We introduce an optimized SC-LDPC codes in relay channels. A more precise model is proposed to characterize the soft noise on the soft symbols, using a pre-calculated look-up table at the destination. This requires less signalling overhead compared to existing soft noise modelling techniques. We also introduce a variance correction factor to provide a rectification to the equivalent total noise variance at the destination. Finally, we modify the LLR former at the destination which is tailored to the proposed soft information relaying technique. Simulation results demonstrate that the proposed relay protocol yields an improved BER performance compared to competitive schemes proposed in the literature.
Originele taal-2Engels
Titel2016 IEEE Wireless Communications and Networking Conference (WCNC 2016)
Aantal pagina's6
DOI's
StatusGepubliceerd - 2016
Extern gepubliceerdJa
Evenement2016 IEEE Wireless Communications and Networking Conference, WCNC 2016 - Doha, Qatar
Duur: 3 apr. 20166 apr. 2016

Congres

Congres2016 IEEE Wireless Communications and Networking Conference, WCNC 2016
Verkorte titelWCNC 2016
Land/RegioQatar
StadDoha
Periode3/04/166/04/16

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