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dc.contributor.authorZafar, Ammar*
dc.contributor.authorRadaydeh, Redha Mahmoud Mesleh*
dc.contributor.authorChen, Yunfei*
dc.contributor.authorAlouini, Mohamed-Slim*
dc.date.accessioned2015-08-04T07:22:32Zen
dc.date.available2015-08-04T07:22:32Zen
dc.date.issued2013-12en
dc.identifier.isbn9781479913534en
dc.identifier.doi10.1109/GLOCOM.2013.6831625en
dc.identifier.urihttp://hdl.handle.net/10754/564834en
dc.description.abstractThis paper investigates the energy-efficiency enhancement of a variable-gain dual-hop amplify-and-forward (AF) relay network utilizing selective relaying. The objective is to minimize the total consumed power while keeping the end-to-end signal-to-noise-ratio (SNR) above a certain peak value and satisfying the peak power constraints at the source and relay nodes. To achieve this objective, an optimal relay selection and power allocation strategy is derived by solving the power minimization problem. Numerical results show that the derived optimal strategy enhances the energy-efficiency as compared to a benchmark scheme in which both the source and the selected relay transmit at peak power. © 2013 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectAmplify-and-forwarden
dc.subjectcooperative relayingen
dc.subjectenergy-efficiencyen
dc.subjectoptimal power allocationen
dc.subjectrelay selectionen
dc.subjectvariable-gain relaysen
dc.titleEnergy-efficient relay selection and optimal power allocation for performance-constrained dual-hop variable-gain AF relayingen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division*
dc.contributor.departmentElectrical Engineering Program*
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division*
dc.contributor.departmentCommunication Theory Lab*
dc.identifier.journal2013 IEEE Global Communications Conference (GLOBECOM)en
dc.conference.date9 December 2013 through 13 December 2013en
dc.conference.name2013 IEEE Global Communications Conference, GLOBECOM 2013en
dc.conference.locationAtlanta, GAen
dc.contributor.institutionDepartment of Electrical Engineering, Alfaisal University, Riyadh, Saudi Arabia*
dc.contributor.institutionSchool of Engineering, University of Warwick, Coventry, CV4 7 AL, United Kingdom*
kaust.authorZafar, Ammar*
kaust.authorRadaydeh, Redha Mahmoud Mesleh*
kaust.authorAlouini, Mohamed-Slim*


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