Antenna gain against interference in CDMA macrodiversity systems

Author

Yanikomeroglu, Halim ; Sousa, Elvino S.

Author_Institution

Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada

Volume

50

Issue

8

fYear

2002

fDate

8/1/2002 12:00:00 AM

Firstpage

1356

Lastpage

1371

Abstract

In a multiantenna system, there is a potential antenna gain against interference, in addition to the diversity gain achieved against fading. It is well known that in order to attain most of the diversity gain (against fading), the antenna elements should be placed apart with a distance (many times) greater than the wavelength=[speed of light]/[frequency] of the carrier. The results presented in this paper indicate that in order to attain most of the antenna gain (against interference) in the reverse-link of finite-bandwidth interference-limited CDMA systems, the interantenna distance should be (many times) greater than a new parameter which is defined as the chiplength=[speed of light]/[chip rate] of the spreading code.

Keywords

antenna arrays; antenna theory; code division multiple access; diversity reception; interference suppression; radiofrequency interference; CDMA macrodiversity systems; antenna gain; diversity gain; fading; finite-bandwidth interference-limited CDMA systems; interantenna distance; interference; multiantenna system; reverse-link; Bandwidth; Diversity methods; Fading; Frequency diversity; Gain; Helium; Interference; Multiaccess communication; Upper bound; Wireless communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2002.801521

Filename

1025508