A Localization Scheme for Sensor Networks Based on Wireless Communication with Anchor Groups

Hiroyuki OCHI  Shigeaki TAGASHIRA  Satoshi FUJITA  

IEICE TRANSACTIONS on Information and Systems   Vol.E89-D   No.5   pp.1614-1621
Publication Date: 2006/05/01
Online ISSN: 1745-1361
DOI: 10.1093/ietisy/e89-d.5.1614
Print ISSN: 0916-8532
Type of Manuscript: Special Section PAPER (Special Section on Challenges in Ad-hoc and Multi-hop Wireless Communications)
sensor networks,  localization,  range-freeness,  point-in-triangulation test,  Bluetooth,  

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In this paper, we propose a new localization scheme for wireless sensor networks consisting of a huge number of sensor nodes equipped with simple wireless communication devices such as wireless LAN and Bluetooth. The proposed scheme is based on the Point-In-Triangle (PIT) test proposed by He et al. The scheme is actually implemented by using Bluetooth devices of Class 2 standard, and the performance of the scheme is evaluated in an actual environment. The result of experiments indicates that the proposed scheme could realize a localization with an error of less than 2 m.