Statistical behavior and performance of adaptive antennas in multipath environments

Author

Pham, Tien D.

Author_Institution

Mentor Graphics Corp., San Jose, CA, USA

fYear

1998

fDate

9-12 Aug 1998

Firstpage

229

Lastpage

232

Abstract

Adaptive antennas can behave very differently in multipath and non-multipath environments. In this paper we study the behavior of adaptive antennas in multipath Rayleigh fading by investigating the statistical variation of the spatial signature of a signal incident upon an antenna array. A method for analyzing the multipath performance of adaptive antennas is presented. It can be shown that the antenna performance becomes less dependent on the angles of arrival (AOA) of the incident signals as their angular spreads and antenna element spacing increase. In general, antenna performance improves for increasing element spacing because fading reduction is more effective and interference suppression is possible even when the mean AOAs of desired and interfering signals coincide

Keywords

Rayleigh channels; adaptive antenna arrays; interference suppression; land mobile radio; multipath channels; radiofrequency interference; radiowave propagation; statistical analysis; adaptive antennas; angles of arrival; angular spreads; antenna array; antenna element spacing; fading reduction; interference suppression; interfering signals; multipath Rayleigh fading; multipath environments; performance; spatial signature; statistical behavior; statistical variation; Adaptive arrays; Antenna arrays; Antennas and propagation; Base stations; Diversity reception; Fading; Interference suppression; Performance analysis; Signal to noise ratio; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Radio and Wireless Conference, 1998. RAWCON 98. 1998 IEEE

Conference_Location

Colorado Springs, CO

Print_ISBN

0-7803-4988-1

Type

conf

DOI

10.1109/RAWCON.1998.709178

Filename

709178