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Binary field network coding design for multiple-source multiple-relay networks
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0002-5407-0835
2011 (English)In: IEEE Int Conf Commun, 2011Conference paper (Refereed)
Abstract [en]

We study the design of network codes for M-source, N-relay wireless networks over slow fading channels. Specifically, vector-wise binary field network coding (BFNC) schemes are proposed. In the construction of our BFNC schemes, we utilize a diversity achieving criterion which can be expressed in terms of the linear independence of quasi-cyclic matrices. Our codes can be implemented with low-complexity encoders at the relays as only binary operations are used. Meanwhile at the destination, for small code lengths, ML decoder can be applied. For large code lengths, we propose a modified BP decoder with low decoding complexity. From analysis and simulations, we show that our proposed BFNC schemes can achieve full diversity for the ML decoder, as well as full diversity for the modified BP decoder we propose for large block lengths. Our simulations also show that our proposed BFNC schemes achieve a higher coding gain relative to previous network coding schemes.

Place, publisher, year, edition, pages
, IEEE International Conference on Communications, ISSN 0536-1486
Keyword [en]
Analysis and simulation, Binary fields, Binary operations, Block lengths, BP decoder, Code length, Coding gains, Full diversity, Linear independence, Low decoding complexity, Low-complexity, ML decoder, Network codes, Quasi-cyclic, Slow fading channel, Computer simulation, Decoding, Fading channels, Information theory, Network coding
National Category
Communication Systems
URN: urn:nbn:se:kth:diva-151145DOI: 10.1109/icc.2011.5963119ISI: 000296057104026ScopusID: 2-s2.0-80052170022ISBN: 9781612842332OAI: diva2:748784
2011 IEEE International Conference on Communications, ICC 2011, 5-9 June 2011, Kyoto, Japan

QC 20140922

Available from: 2014-09-22 Created: 2014-09-15 Last updated: 2014-09-22Bibliographically approved

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