High-throughput multi-source cooperation Via complex-field network coding

Guobing Li; Alfonso Cano; Jesús Gómez-Vilardebó; Georgios B Giannakis; Ana I. Pérez-Neira

doi:10.1109/TWC.2011.030911.101077

High-throughput multi-source cooperation Via complex-field network coding

Guobing Li, Alfonso Cano, Jesús Gómez-Vilardebó, Georgios B Giannakis, Ana I. Pérez-Neira

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Physical-layer network coding over wireless networks can provide considerable throughput gains with respect to traditional cooperative relaying strategies at no loss of diversity gain. In this paper, a novel cooperation protocol is developed based on complex-field wireless network coding. Sources transmit efficiently information symbols linearly combined with symbols from other sources. Different from existing wireless network coding protocols, transmissions are not restricted to binary symbols, and do not have to be received simultaneously. In a network with N sources, the developed protocol can achieve throughput up to approximately 1/N symbols per source per channel use, as well as diversity of order N. To deal with decoding errors at sources, selective- and adaptive-forwarding protocols are also developed at no loss of diversity gain. Analytical results corroborated by simulated tests show considerable performance gains with respect to distributed space-time coding, and bit-level network coding protocols.

Original language	English (US)
Article number	5738650
Pages (from-to)	1606-1617
Number of pages	12
Journal	IEEE Transactions on Wireless Communications
Volume	10
Issue number	5
DOIs	https://doi.org/10.1109/TWC.2011.030911.101077
State	Published - May 2011

Bibliographical note

Funding Information:
This work was supported by the NSF grants CCF-0830480, CCF-1016605, ECCS-0824007, and ECCS-1002180; the China Scholarship Council, Projects in Science and Technology of China (2009ZX03003-008-002); the NSFC under grants 60872028, 60902043 and 60902045; the Catalan Government under grants SGR2009-1046, SGR2009-0891; the Spanish Government under grant TEC2010-17816 and TEC2008-06327-C03-01; and the European project ICT-2007.1.1 NEWCOM++ 216715. Part of this work was presented at the Intl. Conf. on Acoustics, Speech and Signal Processing, Taipei, Taiwan, April 19-24, 2009, and the Wrkshp. on Signal Processing Advances in Wireless Communications, Marrakech, Marocco, June 20-23, 2010.

Keywords

Cooperative diversity
multi-source cooperation
network coding

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10.1109/TWC.2011.030911.101077

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title = "High-throughput multi-source cooperation Via complex-field network coding",

abstract = "Physical-layer network coding over wireless networks can provide considerable throughput gains with respect to traditional cooperative relaying strategies at no loss of diversity gain. In this paper, a novel cooperation protocol is developed based on complex-field wireless network coding. Sources transmit efficiently information symbols linearly combined with symbols from other sources. Different from existing wireless network coding protocols, transmissions are not restricted to binary symbols, and do not have to be received simultaneously. In a network with N sources, the developed protocol can achieve throughput up to approximately 1/N symbols per source per channel use, as well as diversity of order N. To deal with decoding errors at sources, selective- and adaptive-forwarding protocols are also developed at no loss of diversity gain. Analytical results corroborated by simulated tests show considerable performance gains with respect to distributed space-time coding, and bit-level network coding protocols.",

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High-throughput multi-source cooperation Via complex-field network coding

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