Precise localization with smart antennas in Ad-Hoc networks

被引：0
作者：
Shan, Zhilong [1 ]
Yum, Tak-Shing P. [2 ]
机构：
[1] South China Normal Univ, Sch Comp, Guangzhou 510631, Guangdong, Peoples R China
[2] Chinese Univ Hong Kong, Dept Informat Engn, Shatin, Hong Kong, Peoples R China
来源：
GLOBECOM 2007: 2007 IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-11 | 2007年
关键词：
Ad-Hoc networks; localization; AOA; smart antennas;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this paper, we study precise localization using Angle of Arrival (AOA) estimations by smart-antenna equipped beacons in Ad-Hoc networks. The node to be localized sends a signal to its surrounding beacons. The beacons estimate the signal directions with high resolution AOA methods and feed them back to the node for position calculation. In other words, position calculation is not required at beacons. When AOA estimates from three or more beacons are received, ambiguity occurs. Three resolution methods, namely (a) simple averaging (b) Minimax and (c) Precision-weighted averaging are proposed and compared. As estimation bias is heavily dependent on antenna orientations the center-facing approach is found to give better performance in a square field.
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收藏
页码：1053 / +
页数：2
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