Optimal relay selection and power allocation for cognitive two-way relaying networks

Handle URI:
http://hdl.handle.net/10754/561412
Title:
Optimal relay selection and power allocation for cognitive two-way relaying networks
Authors:
Pandarakkottilil, Ubaidulla; Aïssa, Sonia
Abstract:
In this paper, we present an optimal scheme for power allocation and relay selection in a cognitive radio network where a pair of cognitive (or secondary) transceiver nodes communicate with each other assisted by a set of cognitive two-way relays. The secondary nodes share the spectrum with a licensed primary user (PU), and each node is assumed to be equipped with a single transmit/receive antenna. The interference to the PU resulting from the transmission from the cognitive nodes is kept below a specified limit. We propose joint relay selection and optimal power allocation among the secondary user (SU) nodes achieving maximum throughput under transmit power and PU interference constraints. A closed-form solution for optimal allocation of transmit power among the SU transceivers and the SU relay is presented. Furthermore, numerical simulations and comparisons are presented to illustrate the performance of the proposed scheme. © 2012 IEEE.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Wireless Communications Letters
Issue Date:
Jun-2012
DOI:
10.1109/WCL.2012.032312.120095
Type:
Article
ISSN:
21622337
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorPandarakkottilil, Ubaidullaen
dc.contributor.authorAïssa, Soniaen
dc.date.accessioned2015-08-03T09:56:32Zen
dc.date.available2015-08-03T09:56:32Zen
dc.date.issued2012-06en
dc.identifier.issn21622337en
dc.identifier.doi10.1109/WCL.2012.032312.120095en
dc.identifier.urihttp://hdl.handle.net/10754/561412en
dc.description.abstractIn this paper, we present an optimal scheme for power allocation and relay selection in a cognitive radio network where a pair of cognitive (or secondary) transceiver nodes communicate with each other assisted by a set of cognitive two-way relays. The secondary nodes share the spectrum with a licensed primary user (PU), and each node is assumed to be equipped with a single transmit/receive antenna. The interference to the PU resulting from the transmission from the cognitive nodes is kept below a specified limit. We propose joint relay selection and optimal power allocation among the secondary user (SU) nodes achieving maximum throughput under transmit power and PU interference constraints. A closed-form solution for optimal allocation of transmit power among the SU transceivers and the SU relay is presented. Furthermore, numerical simulations and comparisons are presented to illustrate the performance of the proposed scheme. © 2012 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectcognitive radio networksen
dc.subjectCooperative networksen
dc.subjectrelay selectionen
dc.subjecttwo-way relayingen
dc.titleOptimal relay selection and power allocation for cognitive two-way relaying networksen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Wireless Communications Lettersen
dc.contributor.institutionInstitut National de la Recherche Scientifique (INRS), University of Quebec, Montreal, QC, Canadaen
kaust.authorPandarakkottilil, Ubaidullaen
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