Efficient power allocation for fixed-gain amplify-and-forward relaying in rayleigh fading

Handle URI:
http://hdl.handle.net/10754/564743
Title:
Efficient power allocation for fixed-gain amplify-and-forward relaying in rayleigh fading
Authors:
Zafar, Ammar ( 0000-0001-8382-7625 ) ; Radaydeh, Redha Mahmoud; Chen, Yunfei; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
In 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.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Electrical Engineering Program
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2013 IEEE International Conference on Communications Workshops (ICC)
Conference/Event name:
2013 IEEE International Conference on Communications Workshops, ICC 2013
Issue Date:
Jun-2013
DOI:
10.1109/ICCW.2013.6649267
Type:
Conference Paper
ISBN:
9781467357531
Appears in Collections:
Conference Papers; Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorZafar, Ammaren
dc.contributor.authorRadaydeh, Redha Mahmouden
dc.contributor.authorChen, Yunfeien
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-04T07:14:27Zen
dc.date.available2015-08-04T07:14:27Zen
dc.date.issued2013-06en
dc.identifier.isbn9781467357531en
dc.identifier.doi10.1109/ICCW.2013.6649267en
dc.identifier.urihttp://hdl.handle.net/10754/564743en
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.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectAmplify-and-forwarden
dc.subjectchannel statisticsen
dc.subjectenergy-efficiency fixed-gainen
dc.subjecthalf-duplexen
dc.subjectoptimal power allocationen
dc.subjectRayleigh fadingen
dc.titleEfficient power allocation for fixed-gain amplify-and-forward relaying in rayleigh fadingen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentElectrical Engineering Programen
dc.identifier.journal2013 IEEE International Conference on Communications Workshops (ICC)en
dc.conference.date9 June 2013 through 13 June 2013en
dc.conference.name2013 IEEE International Conference on Communications Workshops, ICC 2013en
dc.conference.locationBudapesten
dc.contributor.institutionDepartment of Electrical Engineering, Alfaisal University, Riyadh, Saudi Arabiaen
dc.contributor.institutionSchool of Engineering, University of Warwick, Coventry, CV4 7AL, United Kingdomen
kaust.authorZafar, Ammaren
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