Title :
Capacity analysis of CDMA networks with smart antenna
Author :
Yong, Zhang ; Zhenghe, Feng
Author_Institution :
State Key Lab. on Microwave & Digital Commun., Tsinghua Univ., Beijing, China
Abstract :
The paper investigates the capacity improvement for CDMA wireless communication systems with base-station antenna array. We model the effects of Rayleigh fading, log-normal shadowing, multiple access interference, multi-tier cells, directional beam and thermal noise. Analytical results and computer simulations show that smart antenna at the base station can dramatically improve the reverse channel performance of multicell CDMA wireless systems. The paper also discuss the effects of using directional antennas at the user terminals. System capacity under a multipath environment is considered and simulated at the same time
Keywords :
Rayleigh channels; adaptive antenna arrays; cellular radio; channel capacity; code division multiple access; directive antennas; filtering theory; log normal distribution; multipath channels; multiuser channels; radio networks; radiofrequency interference; thermal noise; AWGN; CDMA networks; CDMA wireless communication systems; Rayleigh fading; SINR; base station; base station configurations; base-station antenna array; capacity analysis; computer simulations; directional antennas; directional beam; log-normal shadowing; multi-tier cells; multicell CDMA wireless systems; multipath environment; multiple access interference; reverse channel performance; simulation; smart antenna; spatial filtering; system capacity; thermal noise; user terminals; Antenna arrays; Base stations; Computer simulation; Multiaccess communication; Multiple access interference; Performance analysis; Rayleigh channels; Shadow mapping; Wireless communication; Working environment noise;
Conference_Titel :
Electrical and Computer Engineering, 2001. Canadian Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-6715-4
DOI :
10.1109/CCECE.2001.933641
