학술논문

Study on the characteristics of predictive closed-loop power control algorithms for a cellular DS/CDMA system
Document Type
Conference
Source
ICUPC '98. IEEE 1998 International Conference on Universal Personal Communications. Conference Proceedings (Cat. No.98TH8384) Universal personal communications Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on. 2:981-985 vol.2 1998
Subject
Communication, Networking and Broadcast Technologies
Power control
Multiaccess communication
Error correction
Power system modeling
Transmitters
System performance
Multiple access interference
Shadow mapping
Error correction codes
Modulation coding
Language
ISSN
1091-8442
Abstract
This paper considers the performance of a reverse link DS/CDMA system with fast closed loop power control algorithms. A predictive power control algorithm is proposed and the performance is compared with the conventional single step-size algorithm. The effects of power control algorithm, power control updating frequency, power control command channel error rate, mobile unit's velocity and increment step-size on the system performance are investigated. Lastly, the optimum power control conditions are found and recommended.