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Cooperative communication in multi-source line networks
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-5407-0835
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0001-7182-9543
2012 (English)In: 2012 IEEE Wireless Communications and Networking Conference, WCNC, IEEE Communications Society, 2012, 2379-2383 p.Conference paper, Published paper (Refereed)
Abstract [en]

Cooperative communication is shown to be an efficient method of combating fading in wireless networks. By "sharing" their antennas cooperating single-antenna nodes create a virtual multi-antenna system and therefore, benefit from spatial diversity. Network coding being a particular cooperative communication technique provides substantial gains in data rate, especially in networks with many sink nodes. By allowing intermediate nodes of a network to mix the incoming data streams, one can achieve the multicast capacity. Recently, Xiao and Skoglund showed that binary network coding (BNC) is not optimal for multi-user multi-relay networks in terms of diversity and proposed diversity network coding (DNC) scheme that outperforms BNC approach. Following this approach we examine potential diversity gains of using the DNC scheme for multi-source line networks. We show that the DNC technique outperforms both conventional time-orthogonal transmission and the BNC scheme. Further, the problem of optimal scheduling of the transmission is explored. We formulate the optimization problem and propose efficient solutions. Numerical results are presented to support theoretical findings.

Place, publisher, year, edition, pages
IEEE Communications Society, 2012. 2379-2383 p.
Series
IEEE Wireless Communications and Networking Conference. Proceedings, ISSN 1525-3511
Keyword [en]
Coding, Optimization, Receiving antennas, Wireless telecommunication systems
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-66458DOI: 10.1109/WCNC.2012.6214193ISI: 000324580702086Scopus ID: 2-s2.0-84864327469ISBN: 978-146730437-5 (print)OAI: oai:DiVA.org:kth-66458DiVA: diva2:484103
Conference
2012 IEEE Wireless Communications and Networking Conference, WCNC 2012; Paris; 1 April 2012 through 4 April 2012
Funder
ICT - The Next Generation
Note

QC 20120904

Available from: 2012-01-26 Created: 2012-01-26 Last updated: 2013-11-25Bibliographically approved

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Xiao, MingKildehöj Rasmussen, Lars

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