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dc.contributor.authorPandarakkottilil, Ubaidulla
dc.contributor.authorAïssa, Sonia
dc.date.accessioned2015-08-03T09:56:32Z
dc.date.available2015-08-03T09:56:32Z
dc.date.issued2012-06
dc.identifier.citationUbaidulla, P., & Aissa, S. (2012). Optimal Relay Selection and Power Allocation for Cognitive Two-Way Relaying Networks. IEEE Wireless Communications Letters, 1(3), 225–228. doi:10.1109/wcl.2012.032312.120095
dc.identifier.issn21622337
dc.identifier.doi10.1109/WCL.2012.032312.120095
dc.identifier.urihttp://hdl.handle.net/10754/561412
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.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectcognitive radio networks
dc.subjectCooperative networks
dc.subjectrelay selection
dc.subjecttwo-way relaying
dc.titleOptimal relay selection and power allocation for cognitive two-way relaying networks
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalIEEE Wireless Communications Letters
dc.contributor.institutionInstitut National de la Recherche Scientifique (INRS), University of Quebec, Montreal, QC, Canada
kaust.personPandarakkottilil, Ubaidulla


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