Robust downlink power-control for DS-CDMA system with multimedia services

Author

Tung, Tai-Lai ; Yao, Kung

Author_Institution

Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA

fYear

2003

fDate

15-18 June 2003

Firstpage

532

Lastpage

536

Abstract

A robust downlink power-control approach for mitigating the degradation in the received SINR of a DS-CDMA system due to channel estimates error is proposed. It is shown that designing a robust downlink power-control is equivalent to solving a robust linear-programming power-minimization problem. Simulation results demonstrate the advantage of the proposed method in improving received SINR and reducing outage probability for various data-rate scenarios.

Keywords

code division multiple access; interference suppression; linear programming; minimisation; mobile radio; multimedia communication; power control; probability; spread spectrum communication; telecommunication control; DS-CDMA system; SINR mitigation; channel estimates error; data rate; multimedia services; outage probability; power minimization; robust downlink power-control; robust linear programming; Antenna arrays; Array signal processing; Capacity planning; Degradation; Downlink; Multiaccess communication; Multimedia systems; Robustness; Signal to noise ratio; Streaming media;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Advances in Wireless Communications, 2003. SPAWC 2003. 4th IEEE Workshop on

Print_ISBN

0-7803-7858-X

Type

conf

DOI

10.1109/SPAWC.2003.1319017

Filename

1319017