An uplink power control based on truncated channel inversion for data traffic in a cellular CDMA system

Author

Ding, Ling ; Lehnert, James S.

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

50

Issue

3

fYear

2001

fDate

5/1/2001 12:00:00 AM

Firstpage

854

Lastpage

866

Abstract

A power control scheme, called truncated channel inversion, in which a mobile suspends transmission when the wireless channel is in a bad condition in order to reduce out-cell interference is examined. It is found that capacity is improved and battery power consumption is reduced as a consequence of suspending transmission, but extra queuing delay is introduced. It is shown that the extra queuing delay depends on how fast the channel characteristics change and that the truncated scheme works well, even for moderate mobile velocities

Keywords

cellular radio; code division multiple access; data communication; delays; interference suppression; inverse problems; multiuser channels; power control; queueing theory; radio links; radiofrequency interference; telecommunication control; battery power consumption reduction; cellular CDMA system; channel characteristics; data traffic; moderate mobile velocities; out-cell interference reduction; queuing delay; transmission suspension; truncated channel inversion; uplink power control; wireless channel; Adaptive control; Batteries; Delay; Energy consumption; Interference; Multiaccess communication; Power control; Programmable control; Quality of service; Traffic control;

fLanguage

English

Journal_Title

Vehicular Technology, IEEE Transactions on

Publisher

ieee

ISSN

0018-9545

Type

jour

DOI

10.1109/25.933318

Filename

933318