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dc.contributor.authorShaqfeh, Mohammad
dc.contributor.authorZafar, Ammar
dc.contributor.authorAlnuweiri, Hussein
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2016-01-19T14:43:40Z
dc.date.available2016-01-19T14:43:40Z
dc.date.issued2015-08
dc.identifier.citationShaqfeh M, Zafar A, Alnuweiri H, Alouini M-S (2015) Overlay Cognitive Radios With Channel-Aware Adaptive Link Selection and Buffer-Aided Relaying. IEEE Trans Commun 63: 2810–2822. Available: http://dx.doi.org/10.1109/tcomm.2015.2448082.
dc.identifier.issn0090-6778
dc.identifier.doi10.1109/tcomm.2015.2448082
dc.identifier.urihttp://hdl.handle.net/10754/594221
dc.description.abstractThe aim of this work is to maximize the long-term average achievable rate region of a primary and a secondary source-destination pairs operating in an overlay setup over block-fading channels. To achieve this objective, we propose an opportunistic strategy to grant channel access to the primary and secondary sources based on the channel conditions in order to exploit the available multiple-link diversity gains in the system. The secondary source has causal knowledge of the primary messages and it acts as a relay of the primary source in return for getting access to the channel. To maximize the gains of relaying, the relay and destination are equipped with buffers to enable the use of channel-aware adaptive link selection. We propose and optimize different link selection policies and characterize their expected achievable rates. Also, we provide several numerical results to demonstrate the evident mutual benefits of buffer-aided cooperation and adaptive link selection to the primary and the secondary source-destination pairs. © 1972-2012 IEEE.
dc.description.sponsorshipNPRP[05-401-2-161]
dc.description.sponsorshipQatar National Research Fund[5-250-2-087]
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectAdaptive link selection
dc.subjectBlockfading channels
dc.subjectBuffer-aided relaying
dc.subjectOpportunistic communication
dc.subjectOverlay cognitive radios
dc.titleOverlay Cognitive Radios With Channel-Aware Adaptive Link Selection and Buffer-Aided Relaying
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journalIEEE Transactions on Communications
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Texas a and M University at Qatar, Doha, Qatar
dc.contributor.institutionFaculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW, Australia
kaust.personAlouini, Mohamed-Slim


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