Localization with Rotatable directional antennas for wireless sensor networks

Jehn Ruey Jiang, Chih Ming Lin, Yi Jia Hsu

研究成果: 書貢獻/報告類型會議論文篇章同行評審

21 引文 斯高帕斯(Scopus)

摘要

In this paper we show the design and implementation of a novel localization scheme, called Rotatable Antenna Localization (RAL), for a wireless sensor network (WSN) with beacon nodes with directional antennas which rotate regularly. A beacon node periodically sends beacon signals containing its position and antenna orientations. By observing the variation of the received signal strength indication (RSSI) values of the beacon signals, a sensor node can estimate the orientation relative to the beacon node. With the estimated orientations and exact positions of two distinct beacon nodes, a sensor can calculate its own location. Four methods are proposed and implemented for the sensor node to estimate its orientations. Among them, we find that the strongest-signal (SS) method has the most accurate orientation estimation. With SS method, we implement RAL scheme and apply it to a WSN in a 10- by 10-meter indoor environment with two beacon nodes at two ends of a side. Our experiment demonstrates that the average position estimation error of RAL is 76 centimeters. We further propose two methods, namely grid- and vector-based approximation methods, to improve RAL by installing more than two beacon nodes. We show by simulation that the improvements can reduce about 10% of the position error.

原文???core.languages.en_GB???
主出版物標題Proceedings - 2010 39th International Conference on Parallel Processing Workshops, ICPPW 2010
頁面542-548
頁數7
DOIs
出版狀態已出版 - 2010
事件2010 39th International Conference on Parallel Processing Workshops, ICPPW 2010 - San Diego, CA, United States
持續時間: 13 9月 201016 9月 2010

出版系列

名字Proceedings of the International Conference on Parallel Processing Workshops
ISSN(列印)1530-2016

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???event.eventtypes.event.conference???2010 39th International Conference on Parallel Processing Workshops, ICPPW 2010
國家/地區United States
城市San Diego, CA
期間13/09/1016/09/10

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