NDLI: Scheduling with rate adaptation under incomplete knowledge of channel/estimator statistics

Content Provider	IEEE Xplore Digital Library
Author	Wenzhuo Ouyang Murugesan, S. Eryilmaz, A. Shroff, N.B.
Copyright Year	2010
Description	Author affiliation: Department of Electrical and Computer Engineering, The Ohio State University, Columbus, 43210, USA (Wenzhuo Ouyang; Murugesan, S.; Eryilmaz, A.; Shroff, N.B.)
Abstract	In time-varying wireless networks, the states of the communication channels are subject to random variations, and hence need to be estimated for efficient rate adaptation and scheduling. The estimation mechanism possesses inaccuracies that need to be tackled in a probabilistic framework. In this work, we study scheduling with rate adaptation in single-hop queueing networks under two levels of channel uncertainty: when the channel estimates are inaccurate but complete knowledge of the channel/estimator joint statistics is available at the scheduler; and when the knowledge of the joint statistics is incomplete. In the former case, we characterize the network stability region and show that a maximum-weight type scheduling policy is throughput-optimal. In the latter case, we propose a joint channel statistics learning - scheduling policy. With an associated trade-off in average packet delay and convergence time, the proposed policy has a stability region arbitrarily close to the stability region of the network under full knowledge of channel/estimator joint statistics.
Starting Page	670
Ending Page	677
File Size	650710
Page Count	8
File Format	PDF
ISBN	9781424482153
e-ISBN	9781424482160
DOI	10.1109/ALLERTON.2010.5706971
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Knowledge engineering Base stations Stability criteria Channel estimation Probability Joints Convergence
Content Type	Text
Resource Type	Article

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