Title :
Experimental investigation of adaptive zone configuration system by using a circular 8-element array antenna
Author :
Kanazawa, Ami ; Iwama, Tsukasa ; Harada, Hiroshi ; Tsuzuki, Naoya ; Ichikawa, Naoki
Author_Institution :
Commun. Res. Lab., Minist. of Posts & Telecommun., Tokyo, Japan
Abstract :
An adaptive zone configuration system for land mobile communications was examined using a developed circular, 8-element array antenna. First, experiments were conducted to determine whether the antenna pattern could actually be controlled. These were done utilizing developed prototype antenna and the linearly constrained minimum variance (LCMV) and least mean square (LS) methods. Secondly, a new function is proposed for more simply deriving the parameters which is provided to both methods to be used in configuring desired cellular zones. Also we proposed an algorithm for grouping the distribution of users to define the desired adaptive cellular zone
Keywords :
adaptive antenna arrays; antenna radiation patterns; cellular radio; least mean squares methods; adaptive cellular zone; adaptive zone configuration system; algorithm; antenna pattern; circular 8-element array antenna; experiments; land mobile communications; least mean square method; linearly constrained minimum variance method; personal digital cellular system; personal handyphone system; user distribution; Adaptive arrays; Adaptive systems; Antenna arrays; Antenna measurements; Communication system control; Linear antenna arrays; Mobile antennas; Phased arrays; Prototypes; Shape control;
Conference_Titel :
Vehicular Technology Conference, 1998. VTC 98. 48th IEEE
Conference_Location :
Ottawa, Ont.
Print_ISBN :
0-7803-4320-4
DOI :
10.1109/VETEC.1998.686422
