期刊
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
卷 12, 期 2, 页码 527-537出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TWC.2012.121412.111346
关键词
Wireless sensor network; localization; angle of departure estimation; multipath propagation
资金
- National Science and Technology Major Project of China [2010ZX03003-002-02]
- National Natural Science Foundation of China [60971113, 61071125, 61071216, 61172093, 61172092, 61102081]
- Science Foundation for Innovative Research Group of China [60921003]
In this paper, we design a new distributed angle estimation method for localization in wireless sensor networks (WSNs) under multipath propagation environment. We employ a two-antenna anchor that can emit two linear chirp waves simultaneously, and propose to estimate the angle of departure (AOD) of the emitted waves at each receiving node via frequency measurement of the local received signal strength indication (RSSI) signal. An improved estimation method is further proposed where multiple parallel arrays are adopted to provide the space diversity. The proposed methods rely only on radio transceivers and do not require frequency synchronization or precise time synchronization between the transceivers. More importantly, the angle is estimated at each sensor in a completely distributed manner. The performance analysis is derived and simulations are presented to corroborate the proposed studies.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据