Distributed power control for throughput balancing in CDMA systems

Author

Berggren, Fredrik

Author_Institution

Dept. of Signals, Sensors & Syst., R. Inst. of Technol., Stockholm, Sweden

Volume

1

fYear

2001

fDate

37135

Abstract

We consider joint rate and power control in a multi-cellular CDMA system utilizing variable processing gain. We investigate the problem of optimum power allocation for sharing the capacity in a fair way in the whole network. For this, we suggest a general distributed power control algorithm which directs the powers so that a uniform throughput is obtained among the users. We show that the powers converge towards the optimal solution at a geometric rate and how the maximum achievable throughput can be estimated during the power control

Keywords

cellular radio; code division multiple access; distributed control; multiuser channels; parameter estimation; power control; telecommunication control; capacity sharing; cellular radio systems; distributed power control algorithm; geometric convergence rate; multi-cellular CDMA system; optimal solution; optimum power allocation; parameter estimation; rate control; throughput balancing; uniform throughput; Background noise; Convergence; Eigenvalues and eigenfunctions; Gain; Iterative algorithms; Multiaccess communication; Narrowband; Power control; Radio communication; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-7244-1

Type

conf

DOI

10.1109/PIMRC.2001.965455

Filename

965455