Opportunistic Energy-Aware Amplify-and-Forward Cooperative Systems with Imperfect CSI

Handle URI:
http://hdl.handle.net/10754/565052
Title:
Opportunistic Energy-Aware Amplify-and-Forward Cooperative Systems with Imperfect CSI
Authors:
Amin, Osama; Bedeer, Ebrahim; Ahmed, Mohamed Hossam; Dobre, Octavia; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
Recently, much attention has been paid to the green design of wireless communication systems using energy efficiency (EE) metrics that should capture all energy consumption sources to deliver the required data. In this paper, we design an energyefficient relay assisted communication system based on estimated channel state information (CSI). It employs amplify-andforward relaying and switches between different communication schemes, which are known as direct-transmission, two-hop and cooperative-transmission schemes, using the estimated CSI in order to maximize the EE. Two estimation strategies are assumed, namely disintegrated channel estimation and cascaded channel estimation. To formulate an accurate EE metric for the proposed opportunistic amplify-and-forward system, the channel estimation cost is reflected on the EE metric by including its impact in the signal-to-noise ratio term and in the energy consumption during the channels estimation phase. Based on the formulated EE metric, we propose an adaptive power allocation algorithm to maximize the EE of the proposed opportunistic amplify-andforward system with channel estimation. Furthermore, we study the impact of the estimation parameters on the proposed system via simulation examples.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
Citation:
Opportunistic Energy-Aware Amplify-and-Forward Cooperative Systems with Imperfect CSI 2015:1 IEEE Transactions on Vehicular Technology
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Vehicular Technology
Issue Date:
29-Jul-2015
DOI:
10.1109/TVT.2015.2462802
Type:
Article
ISSN:
0018-9545; 1939-9359
Additional Links:
http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7172532
Appears in Collections:
Articles; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAmin, Osamaen
dc.contributor.authorBedeer, Ebrahimen
dc.contributor.authorAhmed, Mohamed Hossamen
dc.contributor.authorDobre, Octaviaen
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-04T12:40:04Zen
dc.date.available2015-08-04T12:40:04Zen
dc.date.issued2015-07-29en
dc.identifier.citationOpportunistic Energy-Aware Amplify-and-Forward Cooperative Systems with Imperfect CSI 2015:1 IEEE Transactions on Vehicular Technologyen
dc.identifier.issn0018-9545en
dc.identifier.issn1939-9359en
dc.identifier.doi10.1109/TVT.2015.2462802en
dc.identifier.urihttp://hdl.handle.net/10754/565052en
dc.description.abstractRecently, much attention has been paid to the green design of wireless communication systems using energy efficiency (EE) metrics that should capture all energy consumption sources to deliver the required data. In this paper, we design an energyefficient relay assisted communication system based on estimated channel state information (CSI). It employs amplify-andforward relaying and switches between different communication schemes, which are known as direct-transmission, two-hop and cooperative-transmission schemes, using the estimated CSI in order to maximize the EE. Two estimation strategies are assumed, namely disintegrated channel estimation and cascaded channel estimation. To formulate an accurate EE metric for the proposed opportunistic amplify-and-forward system, the channel estimation cost is reflected on the EE metric by including its impact in the signal-to-noise ratio term and in the energy consumption during the channels estimation phase. Based on the formulated EE metric, we propose an adaptive power allocation algorithm to maximize the EE of the proposed opportunistic amplify-andforward system with channel estimation. Furthermore, we study the impact of the estimation parameters on the proposed system via simulation examples.en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=7172532en
dc.rights(c) 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.en
dc.titleOpportunistic Energy-Aware Amplify-and-Forward Cooperative Systems with Imperfect CSIen
dc.typeArticleen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.identifier.journalIEEE Transactions on Vehicular Technologyen
dc.eprint.versionPost-printen
dc.contributor.institutionFaculty of Applied Science, University of British Columbia, Okanagan Campus, Kelowna, BC, Canada, V1V 1V7en
dc.contributor.institutionFaculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, Canada, A1C 5S7en
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorAmin, Osamaen
kaust.authorAlouini, Mohamed-Slimen
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