Title :
Emerging adaptive antenna techniques for wireless ad-hoc networks
Author_Institution :
ATR Adaptive Commun. Res. Labs., Kyoto, Japan
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;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.922373
