Concatenated channel-and-network coding scheme for two-path successive relay network

Two-path successive relaying (TPSR) is an effective way to reduce the multiplex loss induced by the half-duplex operation of the relay node in a conventional relay network. One crucial issue in TPSR network is that the listening relay always suffers inevitable inter-relay interference (IRI), which d...

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Veröffentlicht in:	IET communications Jg. 7; H. 1; S. 82 - 90
Hauptverfasser:	Chen, Shaolei, Zhang, Zhaoyang, Yin, Rui, Chen, Xiaoming, Wang, Wei
Format:	Journal Article
Sprache:	Englisch
Veröffentlicht:	Stevenage The Institution of Engineering and Technology 01.01.2013 John Wiley & Sons, Inc
Schlagworte:	channel coding Channels code symbols Coding Concatenated channel‐and‐network coding scheme concatenated codes data recovery degree distribution detection performance degradation diversity reception forwarding scheme half‐duplex operation information transfer analysis Interference inter‐relay interference IRI multiplex loss reduction Multiplexing network coding network diversity Networks physical‐layer network coding radiofrequency interference rateless code Relay Relay networks relay networks (telecommunication) relay node Relaying retransmission reduction system efficiency improvement TPSR network two‐path successive relay network retransmission reduction IRI physical-layer network coding inter-relay interference channel coding detection performance degradation information transfer analysis radiofrequency interference relay node data recovery half-duplex operation Concatenated channel-and-network coding scheme relay networks (telecommunication) rateless code network coding diversity reception two-path successive relay network TPSR network network diversity multiplex loss reduction system efficiency improvement concatenated codes code symbols forwarding scheme multiplexing degree distribution
ISSN:	1751-8628, 1751-8636
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Zusammenfassung:	Two-path successive relaying (TPSR) is an effective way to reduce the multiplex loss induced by the half-duplex operation of the relay node in a conventional relay network. One crucial issue in TPSR network is that the listening relay always suffers inevitable inter-relay interference (IRI), which degrades detection performance at the destination. In this study, a concatenated channel-and-network coding approach is proposed to solve the problem. In particular, a highly flexible channel code, namely, rateless code, is employed at the source to provide resilience to the residual IRI and reduce the retransmissions, which might break the system steady state of successive relaying. Then recognising the special interference structure, physical-layer network coding is incorporated into the forwarding scheme of the relay nodes to exploit network diversity and improve system efficiency. By extrinsic information transfer analysis, the minimum number of required code symbols for successful data recovery are calculated, and degree distribution of the rateless code is optimised.
Bibliographie:	SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 ObjectType-Article-2 content type line 23
ISSN:	1751-8628 1751-8636
DOI:	10.1049/iet-com.2012.0263