NDLI: A distributed positioning algorithm for cooperative active and passive sensors

Content Provider	IEEE Xplore Digital Library
Author	Gholami, M.R. Gezici, S. Rydström, M. Ström, E.G.
Copyright Year	2010
Description	Author affiliation: Bilkent University, Department of Electrical and Electronics Engineering, Ankara, Turkey (Gezici, S.) \|\| Chalmers University of Technology, Department Signals and Systems, Gothenburg, Sweden (Gholami, M.R.; Rydström, M.; Ström, E.G.)
Abstract	The problem of positioning a target node is studied for wireless sensor networks with cooperative active and passive sensors. Two-way time-of-arrival and time-difference-of-arrival measurements made by both active and passive nodes are used to estimate the position of the target node. A maximum likelihood estimator (MLE) can be employed to solve the problem. Due to the nonlinear nature of the cost function in the MLE, an iterative search might converge to local minima which often results in large estimation errors. To avoid this drawback, we instead formulate the problem of positioning as finding the intersection of a number of convex sets derived from measurements. To obtain this intersection, we apply the projection onto convex sets approach, which is robust and can be implemented in a distributed manner. Simulations are performed to compare the performance of the MLE and the proposed method.
Starting Page	1713
Ending Page	1718
File Size	447744
Page Count	6
File Format	PDF
ISBN	9781424480173
e-ISBN	9781424480166
DOI	10.1109/PIMRC.2010.5671918
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	Turkey
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Maximum likelihood estimation Transforms Wireless sensor networks Position measurement Sensors Symmetric matrices Noise wireless sensor networks Cooperative positioning projection onto convex sets
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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