A simple adaptive up-link power control algorithm for DS/CDMA system

Author

Ye, F. ; Zhang, Q.T. ; Ko, C.C.

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

fYear

2000

fDate

2000

Firstpage

16

Lastpage

19

Abstract

Power control is a fundamental process in direct sequence coded-division multiple-access (DS/CDMA) system. A proper algorithm must be employed on both the transmitter and receiver to mitigate near-far problem and prevent fading while maintaining sufficient transmission quality. This paper presents a simple adaptive up-link power control algorithm with simple yet effective features implemented on mobile handsets as well as on base stations. Simulation results show the improved performance of the proposed algorithm over current fast feedback closed-loop power control (FPC) algorithm

Keywords

adaptive control; code division multiple access; fading channels; land mobile radio; multiuser channels; power control; radio links; radiofrequency interference; spread spectrum communication; telecommunication control; telephone sets; DS/CDMA system; adaptive up-link power control algorithm; base stations; direct sequence coded-division multiple-access; fading prevention; fast feedback closed-loop power control; interference tracking; mobile handsets; near-far problem; performance; receiver; simulation results; transmission quality; transmitter; Adaptive control; Base stations; Fading; Feedback; Flexible printed circuits; Mobile handsets; Multiaccess communication; Power control; Programmable control; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

EUROCOMM 2000. Information Systems for Enhanced Public Safety and Security. IEEE/AFCEA

Conference_Location

Munich

Print_ISBN

0-7803-6323-X

Type

conf

DOI

10.1109/EURCOM.2000.874762

Filename

874762