Power control and rate management for wireless multimedia CDMA systems

Author

Sung, Chi Wan ; Wong, Wing Shing

Author_Institution

Dept. of Comput. Sci., Chinese Univ. of Hong Kong, Shatin, China

Volume

49

Issue

7

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

1215

Lastpage

1226

Abstract

We consider a wireless multimedia code-division multiple-access system, in which the terminals transmit at different rates. We formulate the problem as a constrained optimization problem, with the objective of maximizing the total effective rate. An optimal power control strategy is derived. When the scale of the system is large, the optimal solution takes a simple form, which is easy to be applied practically. Furthermore, our basic model can be extended to include delay-sensitive traffic

Keywords

cellular radio; code division multiple access; delays; multimedia communication; multiuser channels; optimisation; power control; quality of service; telecommunication control; telecommunication network management; telecommunication traffic; QoS; code-division multiple-access system; constrained optimization problem; delay-sensitive traffic; mobile communication systems; optimal power control; rate management; single-cell CDMA system; voice terminals; wireless multimedia CDMA systems; Bit rate; Constraint optimization; Energy management; Linear programming; Multiaccess communication; Multimedia systems; Power control; Power system management; Quality of service; Resource management;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.935162

Filename

935162