Distributed power control algorithms in the uplink of wireless systems

被引：0

作者：

Martinez-Lopez, F. J. ^{[1
]}

Campos-Delgado, D. U. ^{[2
]}

Luna-Rivera, J. M. ^{[2
]}

机构：

[1] UASLP, Fac Ingn, CIEP, San Luis Potosi, Mexico

[2] UASLP, Fac Ciencias, San Luis Potosi, Mexico

来源：

2007 4TH INTERNATIONAL CONFERENCE ON ELECTRICAL AND ELECTRONICS ENGINEERING | 2007年

关键词：

power control algorithms; CDMA systems; distributed control; dead-beat control;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this paper, the problem of power control in wireless systems using a distributed approach is analyzed. The uplink of a direct-sequence code-division multiple-access communication (DS-CDMA) system is studied in this work. The power control strategies are derived using classical design approaches (PID and Dead-Beat). It is concluded that the uplink channel variations do not destroy the stability of the feedback structures. However, the delays in the closed-loop paths can severely affect the stability and performance of the resulting feedback schemes. As a result, the control laws have to be selected according with the expected transmision delays in order to maximize the resulting performance. Simulation results are presented to compare the control algorithms using a standard single-step power correction approach.

引用

页码：218 / +

页数：2

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