Title :
Performance of variable spreading gain CDMA in multiple-cell environment
Author :
Taherpour, A. ; Shiva, M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Tehran Univ., Iran
Abstract :
In this paper, the capacity of a variable spreading gain code division multiple access (VSG-CDMA) system in multiple-cell environment is analyzed. Multi-rate data services are supported in wide-band CDMA systems. VSG-CDMA is one way of implementing multi-rate systems, the other is multi-code CDMA [Adachi, F et al., 1998]. Perfect power control is considered in the analysis. Various data rates with different quality of service (QoS) requirements and activity levels are also considered. The capacity of this integrated system is the maximum number of concurrent voice users , low speed data users and high speed data users that the system can support while the required QoS and outage probability measures are met. The admissible region of multiple services in wideband CDMA system are analytically derived with 5 MHz bandwidth.
Keywords :
broadband networks; cellular radio; code division multiple access; power control; probability; quality of service; telecommunication control; 5 MHz; QoS; code division multiple access; multiple-cell environment; multirate data services; outage probability measures; power control; quality of service; variable spreading gain CDMA systems; wideband CDMA systems; Interference; Multiaccess communication; Performance analysis; Performance gain; Power control; Power system modeling; Quality of service; Rayleigh channels; Signal to noise ratio; Wideband;
Conference_Titel :
Wireless and Optical Communications Networks, 2005. WOCN 2005. Second IFIP International Conference on
Print_ISBN :
0-7803-9019-9
DOI :
10.1109/WOCN.2005.1436080
