Title :
A smart multiple sector antennas control technique for a high-speed ATM wireless access system using 25-GHz band
Author :
Kurosaki, Satoshi ; Hiraki, Masato ; Aikawa, Satoru
Author_Institution :
NTT Wireless Syst. Labs., Yokosuka, Japan
Abstract :
This paper proposes a smart antenna control technique for an ATM wireless access system (AWA) that offers broadband mobile services. Although the quasi-millimeter band is a promising frequency band for the AWA system, which needs wide frequency spectrum, it suffers from heavy shadowing and multipath fading. The AWA system will employ sector-type B-CS/B-RM antennas to combat both problems. Space and site diversity using sector antennas at multiple sites can be achieved by smart antenna control. This technique is useful for reducing the deterioration caused by shadowing and multipath fading. This paper conducts experiments on a prototype AWA system to confirm that the proposed antenna control technique is realistic and effective
Keywords :
adaptive antenna arrays; adaptive control; broadband networks; diversity reception; fading channels; land mobile radio; microwave antenna arrays; microwave propagation; multipath channels; packet radio networks; radio access networks; telecommunication control; 25 GHz; SHF; broadband mobile services; experiments; frequency band; frequency spectrum; high-speed ATM wireless access system; multipath fading; propagation experiments; quasi-millimeter band; sector-type B-CS/B-RM antennas; shadowing; site diversity; smart multiple sector antennas control; space diversity; Antennas and propagation; Broadband antennas; Communication system control; Control systems; Fading; Frequency; Humans; Mobile antennas; Prototypes; Shadow mapping;
Conference_Titel :
Vehicular Technology Conference, 1999 IEEE 49th
Conference_Location :
Houston, TX
Print_ISBN :
0-7803-5565-2
DOI :
10.1109/VETEC.1999.778097