Title :
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
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;
Conference_Titel :
Communications, 2004 IEEE International Conference on
Print_ISBN :
0-7803-8533-0
DOI :
10.1109/ICC.2004.1313075
