Fixed and multiple step power control for MC-DS-CDMA in indoor and outdoor environments

Author

Hamza, Mustapha ; Huynh, Huu Tuê ; Fortier, Paul

Author_Institution

Dept. of Electr. and Comput. Eng., Laval Univ., Que., Canada

Volume

5

fYear

2004

fDate

20-24 June 2004

Firstpage

2965

Abstract

Power control is essential for code-division multiple-access CDMA cellular systems to overcome the near-far problem since all users share the same bandwidth. In this paper, we solve the power control problem for the multicarrier direct sequence CDMA (MC-DS-CDMA) system. We propose two algorithms based on the measure of the signal to interference ratio (SIR) allowing for the elimination of the effect of distance and slow shadowing in the case of indoor and outdoor environments.

Keywords

code division multiple access; indoor radio; microcellular radio; power control; quality of service; radiofrequency interference; spread spectrum communication; telecommunication control; MC-DS-CDMA system; cellular system; indoor environments; macrocell environment; microcell environment; multiple step power control; near-far problem; outdoor environment; quality of service; shadowing effect; signal to interference ratio; Bandwidth; Cities and towns; Control systems; Frequency; Interference elimination; Multiaccess communication; Power control; Power system modeling; Shadow mapping; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2004 IEEE International Conference on

Print_ISBN

0-7803-8533-0

Type

conf

DOI

10.1109/ICC.2004.1313075

Filename

1313075