On achievable rates of two-path successive relaying

Author

Zhang, Rui

Author_Institution

Inst. for Infocomm Res., A*STAR, Singapore, Singapore

Volume

57

Issue

10

fYear

2009

fDate

10/1/2009 12:00:00 AM

Firstpage

2914

Lastpage

2917

Abstract

This letter studies the achievable rates of the two-path relay channel (TPRC), where two half-duplex relays successively in turn forward messages from a source to a destination. It is shown that the conventional analogue and digital relaying schemes incur non-negligible throughput losses due to a socalled "inter-relay-interference (IRI)" phenomenon. This letter presents a new digital relaying scheme at the source transmitter to mitigate the IRI by applying the "dirty-paper-coding (DPC)" technique. It is shown that the proposed scheme achieves the capacity of the symmetric TPRC.

Keywords

encoding; radiocommunication; radiofrequency interference; achievable rates; analogue relaying schemes; digital relaying schemes; dirty-paper coding technique; half-duplex relays; interrelay-interference phenomenon; two-path successive relaying; Bandwidth; Decoding; Digital relays; Frequency; Helium; Information theory; Protocols; Throughput; Transmitters; Wireless communication; Two-path relay channel; analogue relaying; digital relaying; dirty paper coding (DPC);

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2009.10.080113

Filename

5288492