Antenna gain for adaptive smart antenna systems

Author

Kim, Sang-Youb ; Xu, Guanghan

Author_Institution

Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX, USA

Volume

2

fYear

1997

fDate

4-7 May 1997

Firstpage

1168

Abstract

We study the antenna gain of an adaptive smart antenna system. The motivation for using the smart antenna systems is to increase the antenna gain and to extend the coverage of the system. Unlike traditional antennas whose gain is fixed, the gain of smart antenna systems depends on the signal processing algorithms used, the signal-to-noise ratio, and the data symbol size. We evaluate the antenna gain associated with several typical algorithms including an efficient one introduced in the paper. The effect of the signal-to-noise ratio and sample size on the antenna gain is also analyzed via statistical analysis as well as by computer simulations. Numerical results show that the adaptive smart antenna system can obtain close to the theoretical limit, i.e., 10 log₁₀ M[dB], where M is the number of antennas in a typical wireless communication environment

Keywords

adaptive antenna arrays; adaptive signal processing; array signal processing; direction-of-arrival estimation; land mobile radio; signal sampling; statistical analysis; SNR; adaptive smart antenna systems; antenna gain; computer simulations; data symbol size; sample size; signal processing algorithms; signal-to-noise ratio; statistical analysis; system coverage; wireless communication environment; Adaptive arrays; Adaptive systems; Computational complexity; Linear antenna arrays; Receiving antennas; Signal analysis; Signal processing algorithms; Signal to noise ratio; Synthetic aperture sonar; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1997, IEEE 47th

Conference_Location

Phoenix, AZ

ISSN

1090-3038

Print_ISBN

0-7803-3659-3

Type

conf

DOI

10.1109/VETEC.1997.600514

Filename

600514