Emerging adaptive antenna techniques for wireless ad-hoc networks

Author

Ohira, Takashi

Author_Institution

ATR Adaptive Commun. Res. Labs., Kyoto, Japan

Volume

4

fYear

2001

fDate

6-9 May 2001

Firstpage

858

Abstract

The effects of adaptive antennas on the performance of wireless ad-hoc networks are theoretically clarified. Their beam- and null-steering functionality saves transmission energy, suppresses co-channel interference, and increases the throughput of the network. An analog-based beamforming architecture is introduced as an adaptive antenna suitable for battery-operated terminal devices. In spite of its simple configuration, adaptive beamforming is successfully achieved by using an iterative perturb-gradient-update training procedure

Keywords

adaptive antenna arrays; array signal processing; beam steering; cochannel interference; interference suppression; radio networks; adaptive antenna; adaptive beamforming architecture; battery-operated terminal device; beam-steering; co-channel interference suppression; iterative perturb-gradient-update training; null-steering; throughput; transmission energy; wireless ad-hoc network; Ad hoc networks; Adaptive arrays; Antenna theory; Array signal processing; Directive antennas; Interference suppression; Noise figure; Radio frequency; Signal to noise ratio; Throughput;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-6685-9

Type

conf

DOI

10.1109/ISCAS.2001.922373

Filename

922373