NDLI: Proportional power control algorithm for time varying link gains in cellular radio systems

Content Provider	IEEE Xplore Digital Library
Author	Uykan, Z. Koivo, H.N.
Copyright Year	1967
Abstract	Thus far, most of the power control (PC) algorithms derived from numerical algebra envisage a system where the link gains are fixed, and the PC command can take any value in the real field. These two assumptions are quite unrealistic in actual communication systems, since link gains are time varying and PC commands must be sent over capacity limited channels. Most of the power control algorithms derived from control theory, on the other hand, analyze the PC problem from the point of view of one link. In this paper, we propose a fully distributed and nonlinearly proportional PC algorithm for time-varying link gain environments that can possibly be implemented also as a 1-bit increase/decrease PC command, and analyze it from system point of view. We construct a simple direct bridge between the link gain changes and the parameters of the proposed algorithm. It is shown that the proposed algorithm drives the carrier-to-interference+noise+ratio (CIR) to an interval in time-changing link gain environments. Simulation results for urban speeds show that the proposed algorithm is more robust against link gain changes as compared to the linear distributed PC algorithm of Foschini and Miljanic as a reference algorithm. The proposed algorithm was also verified with an advanced dynamic system simulator.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	341
Ending Page	349
Page Count	9
File Size	206693
File Format	PDF
ISSN	00189545
Volume Number	55
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power control Time varying systems Land mobile radio cellular systems Algorithm design and analysis Algebra Communication systems Channel capacity Control theory Bridges Robustness proportional power control (PropPC) Cellular radio systems distributed power control (PC) algorithms
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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