Cooperative overlay cognitive radio with opportunistic link selection

Zafar, A; Shaqfeh, M; Alouini, MS; Alnuweiri, H

Cooperative overlay cognitive radio with opportunistic link selection

Zafar, A

Shaqfeh, M Alouini, MS Alnuweiri, H

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Publication Type:: Conference Proceeding
Citation:: Proceedings of the International Symposium on Wireless Communication Systems, 2013, pp. 254 - 258
Issue Date:: 2013-01-01

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Field	Value	Language
dc.contributor.author	Zafar, A https://orcid.org/0000-0001-8382-7625	en_US
dc.contributor.author	Shaqfeh, M	en_US
dc.contributor.author	Alouini, MS	en_US
dc.contributor.author	Alnuweiri, H	en_US
dc.date.issued	2013-01-01	en_US
dc.identifier.citation	Proceedings of the International Symposium on Wireless Communication Systems, 2013, pp. 254 - 258	en_US
dc.identifier.isbn	9783800735297	en_US
dc.identifier.issn	2154-0217	en_US
dc.identifier.uri	http://hdl.handle.net/10453/121045
dc.description.abstract	This papers studies opportunistic scheduling for causal overlay cognitive radios where the secondary source cooperates with the primary source. The secondary source is equipped with a buffer and can store the data it receives from the primary source. The target is to maximize the long term secondary rate under constraints on the long term primary rate and to ensure buffer stability. An optimal opportunistic scheduling policy is derived by solving the constrained optimization problem which fully exploits the available diversity gains due to cooperation and buffering. Numerical results show that the optimal scheme enlarges the achievable rate region compared to a benchmark scheme which does not utilize cooperation between the primary and secondary sources. © VDE Verlag GMBH.	en_US
dc.relation.ispartof	Proceedings of the International Symposium on Wireless Communication Systems	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Cooperative overlay cognitive radio with opportunistic link selection	en_US
dc.type	Conference Proceeding
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 - CRIN - Realtime Information Networks
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US

Abstract:

This papers studies opportunistic scheduling for causal overlay cognitive radios where the secondary source cooperates with the primary source. The secondary source is equipped with a buffer and can store the data it receives from the primary source. The target is to maximize the long term secondary rate under constraints on the long term primary rate and to ensure buffer stability. An optimal opportunistic scheduling policy is derived by solving the constrained optimization problem which fully exploits the available diversity gains due to cooperation and buffering. Numerical results show that the optimal scheme enlarges the achievable rate region compared to a benchmark scheme which does not utilize cooperation between the primary and secondary sources. © VDE Verlag GMBH.

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http://hdl.handle.net/10453/121045