A study of optimization problem for amplify-and-forward relaying over weibull fading channels

Handle URI:
http://hdl.handle.net/10754/564299
Title:
A study of optimization problem for amplify-and-forward relaying over weibull fading channels
Authors:
Ikki, Salama Said; Aissa, Sonia
Abstract:
This paper addresses the power allocation and relay positioning problems in amplify-and-forward cooperative networks operating in Weibull fading environments. We study adaptive power allocation (PA) with fixed relay location, optimal relay location with fixed power allocation, and joint optimization of the PA and relay location under total transmit power constraint, in order to minimize the outage probability and average error probability at high signal-to-noise ratios (SNR). Analytical results are validated by numerical simulations and comparisons between the different optimization schemes and their performance are provided. Results show that optimum PA brings only coding gain, while optimum relay location yields, in addition to the latter, diversity gains as well. Also, joint optimization improves both, the diversity gain and coding gain. Furthermore, results illustrate that the analyzed adaptive algorithms outperform uniform schemes. ©2010 IEEE.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
2010 IEEE 72nd Vehicular Technology Conference - Fall
Conference/Event name:
2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fall
Issue Date:
Sep-2010
DOI:
10.1109/VETECF.2010.5594288
Type:
Conference Paper
ISSN:
15502252
ISBN:
9781424435746
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorIkki, Salama Saiden
dc.contributor.authorAissa, Soniaen
dc.date.accessioned2015-08-04T06:22:46Zen
dc.date.available2015-08-04T06:22:46Zen
dc.date.issued2010-09en
dc.identifier.isbn9781424435746en
dc.identifier.issn15502252en
dc.identifier.doi10.1109/VETECF.2010.5594288en
dc.identifier.urihttp://hdl.handle.net/10754/564299en
dc.description.abstractThis paper addresses the power allocation and relay positioning problems in amplify-and-forward cooperative networks operating in Weibull fading environments. We study adaptive power allocation (PA) with fixed relay location, optimal relay location with fixed power allocation, and joint optimization of the PA and relay location under total transmit power constraint, in order to minimize the outage probability and average error probability at high signal-to-noise ratios (SNR). Analytical results are validated by numerical simulations and comparisons between the different optimization schemes and their performance are provided. Results show that optimum PA brings only coding gain, while optimum relay location yields, in addition to the latter, diversity gains as well. Also, joint optimization improves both, the diversity gain and coding gain. Furthermore, results illustrate that the analyzed adaptive algorithms outperform uniform schemes. ©2010 IEEE.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.subjectAmplify-and-forwarden
dc.subjectCooperative networksen
dc.subjectError probabilityen
dc.subjectOutage probabilityen
dc.subjectPower allocationen
dc.subjectRelay locationen
dc.subjectWeibull fading channelsen
dc.titleA study of optimization problem for amplify-and-forward relaying over weibull fading channelsen
dc.typeConference Paperen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journal2010 IEEE 72nd Vehicular Technology Conference - Fallen
dc.conference.date6 September 2010 through 9 September 2010en
dc.conference.name2010 IEEE 72nd Vehicular Technology Conference Fall, VTC2010-Fallen
dc.conference.locationOttawa, ONen
dc.contributor.institutionInstitut National de la Recherche Scientifique (INRS), University of Quebec, Montreal, QC, Canadaen
kaust.authorAissa, Soniaen
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