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Adaptive predictive power control for the uplink channel in DS-CDMA cellular systems

Aldajani, M.A. and Sayed, A.H. (2003) Adaptive predictive power control for the uplink channel in DS-CDMA cellular systems. Vehicular Technology, IEEE Transactions on, 52.

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Abstract

In this paper, we analyze the conventional closed-loop power-control system. We explain that the system behaves essentially as a companded delta modulator and then derive an expression for the power-control error in terms of the channel fading, which suggests methods for reducing the error variance. This is achieved by using a prediction technique for estimating the channel-power fading profile. The prediction module is combined with several proposed schemes for closed-loop power control. The resulting architectures are shown to result in improved performance in simulations.



Item Type:Article
Date:November 2003
Date Type:Publication
Subjects:Computer
Divisions:College Of Computer Sciences and Engineering > Systems Engineering Dept
Creators:Aldajani, M.A. and Sayed, A.H.
ID Code:14694
Deposited By:KFUPM ePrints Admin
Deposited On:24 Jun 2008 16:45
Last Modified:12 Apr 2011 13:16

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