A strength-and-SIR-combined adaptive power control for CDMA mobile radio channels

Author

Yang, Yu-Jun ; Chang, Jin-Fu

Author_Institution

Telecommun. Labs., Chunghwa Telecom Co. Ltd., Yang-Mei, Taiwan

Volume

48

Issue

6

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

1996

Lastpage

2004

Abstract

In this paper, a new power control method for mobile radio channels is proposed and evaluated. Power adjustment is done through the joint knowledge of signal strength and signal-to-interference ratio (SIR). This new power control mechanism greatly reduces the likelihood of positive feedback, as well as providing enhanced system capacities. Study of this combined scheme further motivates the proposal of an adaptive power control scheme, implemented through adjustable thresholds at base stations. This scheme would reduce the overhead in transmitting power control commands to mobile units and also simplify the design of handsets

Keywords

adaptive control; cellular radio; code division multiple access; fading channels; power control; telecommunication control; CDMA; SIR; adaptive power control; adjustable thresholds; base stations; cellular radio; enhanced system capacity; mobile radio channels; signal strength; signal-to-interference ratio; Adaptive control; Base stations; Fading; Feedback; Land mobile radio; Multiaccess communication; Power control; Programmable control; Radio control; Telephony;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.806792

Filename

806792