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Cooperative communication in multi-source line networks
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.ORCID-id: 0000-0002-5407-0835
KTH, Skolan för elektro- och systemteknik (EES), Kommunikationsteori. KTH, Skolan för elektro- och systemteknik (EES), Centra, ACCESS Linnaeus Centre.ORCID-id: 0000-0001-7182-9543
2012 (engelsk)Inngår i: 2012 IEEE Wireless Communications and Networking Conference, WCNC, IEEE Communications Society, 2012, s. 2379-2383Konferansepaper, Publicerat paper (Fagfellevurdert)
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.

sted, utgiver, år, opplag, sider
IEEE Communications Society, 2012. s. 2379-2383
Serie
IEEE Wireless Communications and Networking Conference. Proceedings, ISSN 1525-3511
Emneord [en]
Coding, Optimization, Receiving antennas, Wireless telecommunication systems
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-66458DOI: 10.1109/WCNC.2012.6214193ISI: 000324580702086Scopus ID: 2-s2.0-84864327469ISBN: 978-146730437-5 (tryckt)OAI: oai:DiVA.org:kth-66458DiVA, id: diva2:484103
Konferanse
2012 IEEE Wireless Communications and Networking Conference, WCNC 2012; Paris; 1 April 2012 through 4 April 2012
Forskningsfinansiär
ICT - The Next Generation
Merknad

QC 20120904

Tilgjengelig fra: 2012-01-26 Laget: 2012-01-26 Sist oppdatert: 2013-11-25bibliografisk kontrollert

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Xiao, MingKildehöj Rasmussen, Lars

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