NDLI: Multiuser Switched Diversity Scheduling Schemes

Content Provider	IEEE Xplore Digital Library
Author	Shaqfeh, M. Alnuweiri, H. Alouini, M.-S.
Copyright Year	1972
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.
Starting Page	2499
Ending Page	2510
Page Count	12
File Size	598734
File Format	PDF
ISSN	00906778
Volume Number	60
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-09-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optimization Switches Silicon Scheduling Wireless communication Mobile communication Signal to noise ratio proportional fairness Opportunistic scheduling reduced feedback multiuser switched diversity achievable rate region
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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