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Cooperative Network Coding Strategies for Wireless Relay Networks with Backhaul
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.ORCID iD: 0000-0002-9709-0713
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: 0000-0002-7926-5081
2011 (English)In: IEEE Transactions on Communications, ISSN 0090-6778, E-ISSN 1558-0857, Vol. 59, no 9, 2502-2514 p.Article in journal (Refereed) Published
Abstract [en]

We investigate cooperative network coding strategies for relay-aided two-source two-destination wireless networks with a backhaul connection between the source nodes. Each source multicasts information to all destinations using a shared relay. We study cooperative strategies based on different network coding schemes, namely, finite field and linear network coding, and lattice coding. To further exploit the backhaul connection, we also propose network coding based beamforming. We measure the performance in term of achievable rates over Gaussian channels, and observe significant gains over benchmark schemes. We derive the achievable rate regions for these schemes and find the cut-set bound for our system. We also show that the cut-set bound can be achieved by network coding based beamforming when the signal-to-noise ratios lie in the sphere defined by the source-relay and relay-destination channel gains.

Place, publisher, year, edition, pages
2011. Vol. 59, no 9, 2502-2514 p.
Keyword [en]
Cooperative communication, network coding, relay, source cooperation, cut-set bound
National Category
Telecommunications
Identifiers
URN: urn:nbn:se:kth:diva-42372DOI: 10.1109/TCOMM.2011.061311.100525ISI: 000295013200021Scopus ID: 2-s2.0-80052931798OAI: oai:DiVA.org:kth-42372DiVA: diva2:446942
Funder
ICT - The Next Generation
Note
QC 20111010Available from: 2012-02-10 Created: 2011-10-10 Last updated: 2017-12-08Bibliographically approved

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Du, JinfengXiao, MingSkoglund, Mikael

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