Title :
Downlink capacity of multirate multicell CDMA wireless local loop system with narrowbeam antenna and SIR based power control
Author :
Zhou, Yan ; Chin, Francois ; Liang, Ying-Chang ; Ko, Chi-Chung
Author_Institution :
Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore
Abstract :
A theoretical model for downlink capacity analysis of DS-CDMA based, power controlled wireless local loop system with narrowbeam antenna is presented. Interference from surrounding cells in the multicell environment is investigated. Simulation results shows that system capacity can be increased by employing subscriber directional antenna and antenna array at the base station. Next, we studied the capacity performance in the multimedia multirate situation. The effect of other important system parameters on the capacity is also presented for comparison
Keywords :
cellular radio; channel capacity; code division multiple access; directive antennas; linear antenna arrays; multimedia communication; multiuser channels; power control; radio access networks; radio links; radiofrequency interference; spread spectrum communication; telecommunication control; CDMA wireless local loop system; DS-CDMA; SIR based power control; antenna array; base station; capacity performance; downlink capacity; interference; multimedia multirate system; multirate multicell local loop system; narrowbeam antenna; simulation results; subscriber directional antenna; system capacity; uniform linear array; Antenna arrays; Antenna theory; Base stations; Directive antennas; Downlink; Interference; Linear antenna arrays; Multiaccess communication; Power control; Power system modeling;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd
Conference_Location :
Rhodes
Print_ISBN :
0-7803-6728-6
DOI :
10.1109/VETECS.2001.944022
