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dc.contributor.authorZafar, Ammar
dc.contributor.authorRadaydeh, Redha Mahmoud
dc.contributor.authorChen, Yunfei
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2015-08-04T07:14:27Z
dc.date.available2015-08-04T07:14:27Z
dc.date.issued2013-06
dc.identifier.citationZafar, A., Radaydeh, R. M., Chen, Y., & Alouini, M.-S. (2013). Efficient power allocation for fixed-gain amplify-and-forward relaying in rayleigh fading. 2013 IEEE International Conference on Communications Workshops (ICC). doi:10.1109/iccw.2013.6649267
dc.identifier.isbn9781467357531
dc.identifier.doi10.1109/ICCW.2013.6649267
dc.identifier.urihttp://hdl.handle.net/10754/564743
dc.description.abstractIn this paper, we study power allocation strategies for a fixed-gain amplify-and-forward relay network employing multiple relays. We consider two optimization problems for the relay network: 1) optimal power allocation to maximize the end-to-end signal-to-noise ratio (SNR) and 2) minimizing the total consumed power while maintaining the end-to-end SNR over a threshold value. We assume that the relays have knowledge of only the channel statistics of all the links. We show that the SNR maximization problem is concave and the power minimization problem is convex. Hence, we solve the problems through convex programming. Numerical results show the benefit of allocating power optimally rather than uniformly. © 2013 IEEE.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.subjectAmplify-and-forward
dc.subjectchannel statistics
dc.subjectenergy-efficiency fixed-gain
dc.subjecthalf-duplex
dc.subjectoptimal power allocation
dc.subjectRayleigh fading
dc.titleEfficient power allocation for fixed-gain amplify-and-forward relaying in rayleigh fading
dc.typeConference Paper
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentElectrical Engineering Program
dc.identifier.journal2013 IEEE International Conference on Communications Workshops (ICC)
dc.conference.date9 June 2013 through 13 June 2013
dc.conference.name2013 IEEE International Conference on Communications Workshops, ICC 2013
dc.conference.locationBudapest
dc.contributor.institutionDepartment of Electrical Engineering, Alfaisal University, Riyadh, Saudi Arabia
dc.contributor.institutionSchool of Engineering, University of Warwick, Coventry, CV4 7AL, United Kingdom
kaust.personZafar, Ammar


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