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dc.contributor.authorShaqfeh, Mohammad
dc.contributor.authorAlnuweiri, Hussein M.
dc.contributor.authorAlouini, Mohamed-Slim
dc.date.accessioned2015-08-03T10:00:25Z
dc.date.available2015-08-03T10:00:25Z
dc.date.issued2012-09
dc.identifier.issn00906778
dc.identifier.doi10.1109/TCOMM.2012.062512.110196
dc.identifier.urihttp://hdl.handle.net/10754/562311
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.
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.
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)
dc.relation.urlhttp://arxiv.org/abs/arXiv:1204.2649v1
dc.subjectachievable rate region
dc.subjectmultiuser switched diversity
dc.subjectOpportunistic scheduling
dc.subjectproportional fairness
dc.subjectreduced feedback
dc.titleMultiuser switched diversity scheduling schemes
dc.typeArticle
dc.contributor.departmentElectrical Engineering Program
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentCommunication Theory Lab
dc.identifier.journalIEEE Transactions on Communications
dc.contributor.institutionDepartment of Electrical and Computer Engineering, Texas AandM University at Qatar, C/o Qatar Foundation, PO Box 23874, Doha, Qatar
dc.identifier.arxividarXiv:1204.2649
kaust.personAlouini, Mohamed-Slim


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