Title :
Evaluation of the interference rejection capability of a uniform circular array in CDMA systems
Author :
Panduro, Marco A. ; Andrade, Angel G. ; García, Juan P.
Author_Institution :
Reynosa-Rhode Multidisciplinary Acad. Center, Univ. of Tamaulipas, Mexico
fDate :
April 28-30, 2005
Abstract :
The interference rejection capability of an antenna array at base station of a CDMA communications system results in improvement in the signal-to-interference ratio (SIR). In general, this figure of merit depends strongly on the array configuration and is a function of the direction of arrival of the desired signal, the number of antenna elements, and their spacing. In this paper, we consider a uniform circular antenna array used for smart antenna systems and study the effect of varying the number of elements and its inter-element spacing on the SIR performance.
Keywords :
adaptive antenna arrays; code division multiple access; direction-of-arrival estimation; interference suppression; radiofrequency interference; CDMA system; SIR; base station; code division multiple access; direction of arrival; interelement spacing; interference rejection capability; signal-to-interference ratio; uniform circular antenna array; Antenna arrays; Antenna radiation patterns; Array signal processing; Base stations; Directive antennas; Geometry; Interference suppression; Linear antenna arrays; Multiaccess communication; Multiple access interference;
Conference_Titel :
Wireless Telecommunications Symposium, 2005
Print_ISBN :
0-7803-8856-9
DOI :
10.1109/WTS.2005.1524779
