Cooperative communication in multi-source line networks
2012 (English)In: 2012 IEEE Wireless Communications and Networking Conference, WCNC, IEEE Communications Society, 2012, 2379-2383 p.Conference paper (Refereed)
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.
, IEEE Wireless Communications and Networking Conference. Proceedings, ISSN 1525-3511
Coding, Optimization, Receiving antennas, Wireless telecommunication systems
IdentifiersURN: urn:nbn:se:kth:diva-66458DOI: 10.1109/WCNC.2012.6214193ISI: 000324580702086ScopusID: 2-s2.0-84864327469ISBN: 978-146730437-5OAI: oai:DiVA.org:kth-66458DiVA: diva2:484103
2012 IEEE Wireless Communications and Networking Conference, WCNC 2012; Paris; 1 April 2012 through 4 April 2012
FunderICT - The Next Generation
QC 201209042012-01-262012-01-262013-11-25Bibliographically approved