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In sensor network applications, measured data are often meaningful only when the location is accurately known. In this booklet, we study research problems associated with node localization in wireless sensor networks. We describe sensor network localization problems in terms of a detection and estimation framework and we emphasize specifically a cooperative process where sensors with known locations are used to localize nodes at unknown locations. In this class of problems, even if the location of a node is known, the wireless links and transmission modalities between two nodes may be unknown. In this case, sensor nodes are used to detect the location and estimate pertinent data transmission activities between nodes. In addition to the broader problem of sensor localization, this booklet studies also specific localization measurements such as time of arrival (TOA), received signal strength (RSS), and direction of arrival (DOA). The sequential localization algorithm, which uses a subset of sensor nodes to estimate nearby sensor nodes’ locations is discussed in detail. Extensive bibliography is given for those readers who want to delve further into specific topics.
Acerca de Andreas Spanias
Arizona State University
Acerca de Xue Zhang
Xue Zhang is a Senior System Engineer at Intel Corporation in Santa Clara, CA. She received her B.S. degree from Xi’an Shiyou University in 2008, her M.S. degree from California State University Fullerton in 2010, and her Ph.D. degree from Arizona State University in 2016, all in Electrical Engineering. Her research interests include Digital Signal Processing and Communications. Specifically, she is interested in localization in wireless sensor networks.
Acerca de Cihan Tepedelenlioglu
Arizona State University
Acerca de Mahesh Banavar
Mahesh Banavar received a B.E. degree in telecommunications engineering from Visvesvaraya Technological University, Karnataka, India, in 2005 and M.S. and Ph.D. degrees, both in electrical engineering, from Arizona State University, Tempe, in 2007 and 2010, respectively. He is currently an Assistant Professor in the Department of Electrical and Computer Engineering at Clarkson University, Potsdam, NY. His interests include node localization, detection and estimation algorithms, and performance analysis of distributed sensor algorithms for wireless sensor networks. Dr. Banavar is a recipient of the Teaching Excellence Award from the Graduate and Professional Student Association at Arizona State University and the Outstanding Teaching Award from the Eta Kappa Nu chapter at Clarkson University. He is also a member of MENSA and the Eta Kappa Nu honor society.
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