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Vienna
April 18, 2006 to April 20, 2006
ISBN: 0-7695-2466-4
pp: 915-919
L. Wang , University of Newcastle upon Tyne, NE1 7RU, U.K.
C. C. Tsimenidis , University of Newcastle upon Tyne, NE1 7RU, U.K.
A. E. Adams , University of Newcastle upon Tyne, NE1 7RU, U.K.
ABSTRACT
In this paper, a new adaptive, closed-loop power control algorithm is proposed for wideband code-divisionmultiple- access (W-CDMA) communication systems. The adjustment of power is carried out through knowledge of the past values of signal strength and signal-to-interference ratio (SIR). The gradient nature of Rayleigh fading channel is estimated in order to alleviate the effect of fast fading and to enable the channel to be tracked more effectively, hence providing stable received signal power and SIR for each user. Simulation results show that the proposed algorithm has superior convergence performance compared to existing approaches.
INDEX TERMS
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CITATION
L. Wang, C. C. Tsimenidis, A. E. Adams, "Adaptive Power Control using Channel State Information Gradient for Mobile Radio Systems", AINA, 2006, Proceedings. 20th International Conference on Advanced Information Networking and Applications, Proceedings. 20th International Conference on Advanced Information Networking and Applications 2006, pp. 915-919, doi:10.1109/AINA.2006.74
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