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Volume 10
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10.3390/s100100400
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Article

Collaborative Localization in Wireless Sensor Networks via Pattern Recognition in Radio Irregularity Using Omnidirectional Antennas

by
Joe-Air Jiang
1,*,
Cheng-Long Chuang
1,2,
Tzu-Shiang Lin
1,
Chia-Pang Chen
1,
Chih-Hung Hung
1,
Jiing-Yi Wang
1,
Chang-Wang Liu
1 and
Tzu-Yun Lai
1
1
Department of Bio-Industrial Mechatronics Engineering, National Taiwan University, Taipei 106, Taiwan
2
Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan
*
Author to whom correspondence should be addressed.
Sensors 2010, 10(1), 400-427; https://doi.org/10.3390/s100100400
Received: 27 October 2009 / Revised: 11 December 2009 / Accepted: 4 January 2010 / Published: 6 January 2010
(This article belongs to the Special Issue Wireless Sensor Network and Its Application in Advanced Computer Science)
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Abstract

In recent years, various received signal strength (RSS)-based localization estimation approaches for wireless sensor networks (WSNs) have been proposed. RSS-based localization is regarded as a low-cost solution for many location-aware applications in WSNs. In previous studies, the radiation patterns of all sensor nodes are assumed to be spherical, which is an oversimplification of the radio propagation model in practical applications. In this study, we present an RSS-based cooperative localization method that estimates unknown coordinates of sensor nodes in a network. Arrangement of two external low-cost omnidirectional dipole antennas is developed by using the distance-power gradient model. A modified robust regression is also proposed to determine the relative azimuth and distance between a sensor node and a fixed reference node. In addition, a cooperative localization scheme that incorporates estimations from multiple fixed reference nodes is presented to improve the accuracy of the localization. The proposed method is tested via computer-based analysis and field test. Experimental results demonstrate that the proposed low-cost method is a useful solution for localizing sensor nodes in unknown or changing environments. View Full-Text
Keywords: localization; mobile applications; radiation pattern; received-signal strength; robust correlation; wireless sensor networks localization; mobile applications; radiation pattern; received-signal strength; robust correlation; wireless sensor networks
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This is an open access article distributed under the Creative Commons Attribution License
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MDPI and ACS Style

Jiang, J.-A.; Chuang, C.-L.; Lin, T.-S.; Chen, C.-P.; Hung, C.-H.; Wang, J.-Y.; Liu, C.-W.; Lai, T.-Y. Collaborative Localization in Wireless Sensor Networks via Pattern Recognition in Radio Irregularity Using Omnidirectional Antennas. Sensors 2010, 10, 400-427. https://doi.org/10.3390/s100100400

AMA Style

Jiang J-A, Chuang C-L, Lin T-S, Chen C-P, Hung C-H, Wang J-Y, Liu C-W, Lai T-Y. Collaborative Localization in Wireless Sensor Networks via Pattern Recognition in Radio Irregularity Using Omnidirectional Antennas. Sensors. 2010; 10(1):400-427. https://doi.org/10.3390/s100100400

Chicago/Turabian Style

Jiang, Joe-Air, Cheng-Long Chuang, Tzu-Shiang Lin, Chia-Pang Chen, Chih-Hung Hung, Jiing-Yi Wang, Chang-Wang Liu, and Tzu-Yun Lai. 2010. "Collaborative Localization in Wireless Sensor Networks via Pattern Recognition in Radio Irregularity Using Omnidirectional Antennas" Sensors 10, no. 1: 400-427. https://doi.org/10.3390/s100100400

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