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

fYear

2005

fDate

April 28-30, 2005

Firstpage

143

Lastpage

148

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Telecommunications Symposium, 2005

Print_ISBN

0-7803-8856-9

Type

conf

DOI

10.1109/WTS.2005.1524779

Filename

1524779