Asymptotically optimal error-rate performance of linear physical-layer network coding in rayleigh fading two-way relay channels

Yang, T; Collings, IB

Asymptotically optimal error-rate performance of linear physical-layer network coding in rayleigh fading two-way relay channels

Yang, T

Collings, IB

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Publication Type:: Journal Article
Citation:: IEEE Communications Letters, 2012, 16 (7), pp. 1068 - 1071
Issue Date:: 2012-05-11

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Field	Value	Language
dc.contributor.author	Yang, T https://orcid.org/0000-0002-9870-6866	en_US
dc.contributor.author	Collings, IB	en_US
dc.date.issued	2012-05-11	en_US
dc.identifier.citation	IEEE Communications Letters, 2012, 16 (7), pp. 1068 - 1071	en_US
dc.identifier.issn	1089-7798	en_US
dc.identifier.uri	http://hdl.handle.net/10453/39572
dc.description.abstract	We study a new linear physical-layer network coding (LPNC) scheme for fading two-way relay channels. In the uplink phase, two users transmit simultaneously. The relay selects some integer coefficients and computes a linear combination (in a size-q finite set) of the two users' messages, which is broadcast in the downlink phase. We develop a design criterion for choosing the integer coefficients that minimizes the error probability. Based on that, we derive an asymptotically tight bound, in a closed-form, for the error probability of the LPNC scheme over Rayleigh fading channels. Our analysis shows that the error-rate performance of the LPNC scheme becomes asymptotically optimal at a high SNR, and our designed LPNC scheme significantly outperforms existing schemes in the literature. © 2012 IEEE.	en_US
dc.relation.ispartof	IEEE Communications Letters	en_US
dc.relation.isbasedon	10.1109/LCOMM.2012.050112.120520	en_US
dc.subject.classification	Networking & Telecommunications	en_US
dc.title	Asymptotically optimal error-rate performance of linear physical-layer network coding in rayleigh fading two-way relay channels	en_US
dc.type	Journal Article
utslib.citation.volume	7	en_US
utslib.citation.volume	16	en_US
utslib.for	0805 Distributed Computing	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	1005 Communications Technologies	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	closed_access
pubs.issue	7	en_US
pubs.publication-status	Published	en_US
pubs.volume	16	en_US

Abstract:

We study a new linear physical-layer network coding (LPNC) scheme for fading two-way relay channels. In the uplink phase, two users transmit simultaneously. The relay selects some integer coefficients and computes a linear combination (in a size-q finite set) of the two users' messages, which is broadcast in the downlink phase. We develop a design criterion for choosing the integer coefficients that minimizes the error probability. Based on that, we derive an asymptotically tight bound, in a closed-form, for the error probability of the LPNC scheme over Rayleigh fading channels. Our analysis shows that the error-rate performance of the LPNC scheme becomes asymptotically optimal at a high SNR, and our designed LPNC scheme significantly outperforms existing schemes in the literature. © 2012 IEEE.

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http://hdl.handle.net/10453/39572