Title :
Capacity performance analysis for multi-service CDMA cellular systems
Author :
Wang, Yu ; Li, Shao-Qian ; Li, Leming
Author_Institution :
Nat. Commun. Lab., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
29 June-1 July 2002
Abstract :
The 3G mobile communication systems based on CDMA are expected to provide multi-services to mobile users. This paper presents a comprehensive analysis on the capacity performance of both uplink and downlink of a multi-service CDMA cellular system. For the uplink, the statistics of the interference at the base station can be approximated by a log normal distributed random variable, and the capacity performance is analyzed through a mathematical approximation method. For the downlink, the distribution of the interference at the mobile user´s receiver is hard to gain, thus computer simulation is used to investigate the capacity performance. In addition, the impact of the shadowing, power control error and orthogonality factor on the system capacity performance are evaluated.
Keywords :
3G mobile communication; cellular radio; channel capacity; code division multiple access; log normal distribution; power control; radiofrequency interference; telecommunication traffic; 3G mobile communication systems; CDMA; capacity performance analysis; downlink; interference statistics; log normal distribution; mathematical approximation method; multi-service cellular radio systems; orthogonality factor; power control error; shadowing effect; uplink; 3G mobile communication; Approximation methods; Base stations; Downlink; Interference; Multiaccess communication; Performance analysis; Random variables; Statistical analysis; Statistical distributions;
Conference_Titel :
Communications, Circuits and Systems and West Sino Expositions, IEEE 2002 International Conference on
Print_ISBN :
0-7803-7547-5
DOI :
10.1109/ICCCAS.2002.1180604
