Variance minimization stochastic power control in CDMA systems

Authors:
Lijun Qian;Zoran Gajic
Affiliations:
Dept. of Electr. Eng., Prairie View A&M Univ., TX, USA;-
Venue:
IEEE Transactions on Wireless Communications
Year:
2006

Citing 0
Cited 5

Power Control in Wireless Cellular Networks

Foundations and Trends® in Networking
Distributed power control algorithms for asynchronous CDMA systems in frequency-selective fading channels

Wireless Networks
Unified framework for the analysis and design of linear uplink power control in CDMA systems

Wireless Networks
Reverse Link Performance of DS-CDMA Cellular Systems through Closed-Loop Power Control, Base Station Assignment, and Antenna Arrays in 2D Urban Environment

Wireless Personal Communications: An International Journal
Effects of Nakagami-Fading Parameters and Power Control Error on Performance of DS-CDMA Cellular Systems with Adaptive Beamforming

Wireless Personal Communications: An International Journal

Quantified Score

Hi-index	0.01

Visualization

Abstract

In this paper, the uplink power control problem is considered for CDMA cellular systems, where stochastic SIR measurements are performed at base stations. A distributed stochastic power control algorithm is proposed assuming SIR measurements contain white noise. The proposed scheme minimize the sum of variances of mobile's transmission power and signal-to-interference error. The algorithm derived is fully distributed in the sense that each user only needs to know its own signal-to-interference measurement and channel variation. Uncertainties of wireless channels are accommodated by using a robust estimator. Simulation results indicate that the proposed power control scheme has very fast convergence. In addition, it also works fine with 4-bit quantization.