TOA-Based Location Estimation Accuracy for 3D Wireless Sensor Networks

WSNs are a physical impossibility to be deployed into the area of absolute plane in the context of real-world applications. For all kinds of applications in WSNs accurate location information is crucial. In this article, we focus on 3D location accuracy in WSNs. We quantify the estimation accuracy f...

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Published in2009 5th International Conference on Wireless Communications, Networking and Mobile Computing pp. 1 - 4
Main Authors Qiao-ling Du, Xiaoying Sun, Rui Ding, Zhi-hong Qian, Shu-xun Wang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2009
Subjects
Ad hoc networks
Costs
Educational institutions
Monitoring
Protocols
Sensor phenomena and characterization
Sun
Time difference of arrival
Volcanoes
Wireless sensor networks
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Summary:WSNs are a physical impossibility to be deployed into the area of absolute plane in the context of real-world applications. For all kinds of applications in WSNs accurate location information is crucial. In this article, we focus on 3D location accuracy in WSNs. We quantify the estimation accuracy for the TOA measurements by deriving the Cramer-Rao bound (CRB), and discuss the performance in two application scenarios, 2D WSN and 3D WSN. Matlab simulation indicates that the 3D location accuracy is superior to the 2D location accuracy for WSNs with reference devices and blindfolded devices being deployed randomly.
ISBN:9781424436927
1424436923
1424436915
9781424436910
ISSN:2161-9646
DOI:10.1109/WICOM.2009.5302827