A distributed fixed-step power control algorithm with quantization and active link quality protection

Author

Sung, Chi Wan ; Wong, Wing Shing

Author_Institution

Dept. of Inf. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong

Volume

48

Issue

2

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

553

Lastpage

562

Abstract

A distributed fixed-step power control algorithm is presented. It is a simple feedback adjustment algorithm using only local information. In the ideal case where there is no power constraint, it is guaranteed that existing users will not be dropped due to admission of new users. If it is infeasible to accommodate all of them, the new user will be blocked. When the constraint on the maximum power is imposed, it is shown by simulation that blocking a new call is more probable than dropping any existing calls, if the capacity is exceeded. Besides, its convergence property is demonstrated. The convergence rate, which depends on the step size, is studied through simulation. In addition, the issue of power quantization is addressed

Keywords

cellular radio; convergence of numerical methods; distributed control; fading; feedback; power control; quantisation (signal); radio links; radiofrequency interference; telecommunication control; active link quality protection; carrier to interference ratio; channel allocation; convergence rate; distributed fixed-step power control algorithm; feedback adjustment algorithm; high-capacity cellular communication system; power quantization; short-term fading; simulation; step size; Convergence; Distributed algorithms; Interchannel interference; Power control; Power system modeling; Protection; Quality of service; Quantization; Radio transmitters; Time division multiple access;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.752580

Filename

752580