NDLI: Delay constrained rate and power adaptation over correlated fading channels

Content Provider	IEEE Xplore Digital Library
Author	Karmokar, A.K. Djonin, D.V. Bhargava, V.K.
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada (Karmokar, A.K.; Djonin, D.V.; Bhargava, V.K.)
Abstract	We present a general Markov decision process based framework for the identification of optimal delay-constrained rate adaptation for MQAM systems and power adaptation for type-I hybrid ARQ systems. This framework can be applied to adaptive resource allocation over correlated fading channels. It is shown that the optimal rate and power control can be obtained by solving the appropriately formulated Markov decision processes using linear programming techniques. In the case of adaptive MQAM systems, the optimal rate allocation policy is dependent on the current buffer occupancy and the channel state. For hybrid ARQ systems the power control law can be formulated as being dependent on the current buffer occupancy and the history record of channel and action observations. The results of this paper are of importance for the development of modern wireless standards that support delay sensitive multimedia traffic.
Starting Page	3448
Ending Page	3453
File Size	700606
Page Count	6
File Format	PDF
ISBN	0780387945
DOI	10.1109/GLOCOM.2004.1379007
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-11-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Fading Automatic repeat request Power control Resource management Linear programming Adaptive systems History Wireless sensor networks Standards development
Content Type	Text
Resource Type	Article

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