Title :
Study on the characteristics of predictive closed-loop power control algorithms for a cellular DS/CDMA system
Author :
Sim, M.L. ; Gunawan, E. ; Soh, C.B. ; Soong, B.H.
Author_Institution :
Fac. of Eng., Univ. Telekom, Melaka, Malaysia
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
Keywords :
cellular radio; closed loop systems; code division multiple access; power control; predictive control; spread spectrum communication; telecommunication control; DS/CDMA system; cellular radio; closed-loop power control algorithms; command channel error rate; increment step-size; mobile unit´s velocity; predictive power control algorithm; reverse link; single step-size algorithm; updating frequency; Error correction; Error correction codes; Modulation coding; Multiaccess communication; Multiple access interference; Power control; Power system modeling; Shadow mapping; System performance; Transmitters;
Conference_Titel :
Universal Personal Communications, 1998. ICUPC '98. IEEE 1998 International Conference on
Conference_Location :
Florence
Print_ISBN :
0-7803-5106-1
DOI :
10.1109/ICUPC.1998.733653
