Multiuser switched diversity scheduling schemes

Handle URI:
http://hdl.handle.net/10754/562311
Title:
Multiuser switched diversity scheduling schemes
Authors:
Shaqfeh, Mohammad; Alnuweiri, Hussein M.; Alouini, Mohamed-Slim ( 0000-0003-4827-1793 )
Abstract:
Multiuser switched-diversity scheduling schemes were recently proposed in order to overcome the heavy feedback requirements of conventional opportunistic scheduling schemes by applying a threshold-based, distributed, and ordered scheduling mechanism. The main idea behind these schemes is that slight reduction in the prospected multiuser diversity gains is an acceptable trade-off for great savings in terms of required channel-state-information feedback messages. In this work, we characterize the achievable rate region of multiuser switched diversity systems and compare it with the rate region of full feedback multiuser diversity systems. We propose also a novel proportional fair multiuser switched-based scheduling scheme and we demonstrate that it can be optimized using a practical and distributed method to obtain the feedback thresholds. We finally demonstrate by numerical examples that switched-diversity scheduling schemes operate within 0.3 bits/sec/Hz from the ultimate network capacity of full feedback systems in Rayleigh fading conditions. © 2012 IEEE.
KAUST Department:
Electrical Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Communication Theory Lab
Publisher:
Institute of Electrical and Electronics Engineers (IEEE)
Journal:
IEEE Transactions on Communications
Issue Date:
Sep-2012
DOI:
10.1109/TCOMM.2012.062512.110196
ARXIV:
arXiv:1204.2649
Type:
Article
ISSN:
00906778
Sponsors:
This paper was made possible by NPRP grant #08-577-2-241 from the Qatar National Research Fund (a member of the Qatar Foundation). The statements made herein are solely the responsibility of the authors.
Additional Links:
http://arxiv.org/abs/arXiv:1204.2649v1
Appears in Collections:
Articles; Electrical Engineering Program; Communication Theory Lab; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorShaqfeh, Mohammaden
dc.contributor.authorAlnuweiri, Hussein M.en
dc.contributor.authorAlouini, Mohamed-Slimen
dc.date.accessioned2015-08-03T10:00:25Zen
dc.date.available2015-08-03T10:00:25Zen
dc.date.issued2012-09en
dc.identifier.issn00906778en
dc.identifier.doi10.1109/TCOMM.2012.062512.110196en
dc.identifier.urihttp://hdl.handle.net/10754/562311en
dc.description.abstractMultiuser switched-diversity scheduling schemes were recently proposed in order to overcome the heavy feedback requirements of conventional opportunistic scheduling schemes by applying a threshold-based, distributed, and ordered scheduling mechanism. The main idea behind these schemes is that slight reduction in the prospected multiuser diversity gains is an acceptable trade-off for great savings in terms of required channel-state-information feedback messages. In this work, we characterize the achievable rate region of multiuser switched diversity systems and compare it with the rate region of full feedback multiuser diversity systems. We propose also a novel proportional fair multiuser switched-based scheduling scheme and we demonstrate that it can be optimized using a practical and distributed method to obtain the feedback thresholds. We finally demonstrate by numerical examples that switched-diversity scheduling schemes operate within 0.3 bits/sec/Hz from the ultimate network capacity of full feedback systems in Rayleigh fading conditions. © 2012 IEEE.en
dc.description.sponsorshipThis paper was made possible by NPRP grant #08-577-2-241 from the Qatar National Research Fund (a member of the Qatar Foundation). The statements made herein are solely the responsibility of the authors.en
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.urlhttp://arxiv.org/abs/arXiv:1204.2649v1en
dc.subjectachievable rate regionen
dc.subjectmultiuser switched diversityen
dc.subjectOpportunistic schedulingen
dc.subjectproportional fairnessen
dc.subjectreduced feedbacken
dc.titleMultiuser switched diversity scheduling schemesen
dc.typeArticleen
dc.contributor.departmentElectrical Engineering Programen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentCommunication Theory Laben
dc.identifier.journalIEEE Transactions on Communicationsen
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Texas AandM University at Qatar, C/o Qatar Foundation, PO Box 23874, Doha, Qataren
dc.identifier.arxividarXiv:1204.2649en
kaust.authorAlouini, Mohamed-Slimen
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