Proceedings ArticleDOI
Radio interferometric geolocation
Miklós Maróti,Peter Volgyesi,Sebestyén Dóra,Branislav Kusý,Andras Nadas,Akos Ledeczi,Gyorgy Balogh,K. Molnar +7 more
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TLDR
A novel radio interference based sensor localization method for wireless sensor networks that does not require any sensors other than the radio used for wireless communication and has an average localization error as small as 3 cm and a range of up to 160 meters.Abstract:
We present a novel radio interference based sensor localization method for wireless sensor networks. The technique relies on a pair of nodes emitting radio waves simultaneously at slightly different frequencies. The carrier frequency of the composite signal is between the two frequencies, but has a very low frequency envelope. Neighboring nodes can measure the energy of the envelope signal as the signal strength. The relative phase offset of this signal measured at two receivers is a function of the distances between the four nodes involved and the carrier frequency. By making multiple measurements in an at least 8-node network, it is possible to reconstruct the relative location of the nodes in 3D. Our prototype implementation on the MICA2 platform yields an average localization error as small as 3 cm and a range of up to 160 meters. In addition to this high precision and long range, the other main advantage of the Radio Interferometric Positioning System (RIPS) is the fact that it does not require any sensors other than the radio used for wireless communication.read more
Citations
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Proceedings ArticleDOI
Node Self-Localisation in Large Scale Sensor Networks
TL;DR: A computationally efficient algorithm for performing this task using radio interferometric positioning is presented, which shows performance that is similar to that obtained with a centralised approach but with significantly lower computation and transmission costs.
Book ChapterDOI
Removing systematic error in node localisation using scalable data fusion
TL;DR: This paper proposes a method for achieving higher accuracy by combining redundant measurements taken by different nodes aimed at compensating for the systematic errors which are dependent on the specific nodes used, as well as their spatial configuration.
Proceedings ArticleDOI
Design an asynchronous radio interferometric positioning system using dual-tone signaling
TL;DR: The proposed ARIPS is robust to carrier frequency offsets (CFOs) and random phases due to asynchronous oscillators, and increases the resolving range limit due to the well-known integer ambiguity issue.
DissertationDOI
Wireless Embedded Systems: Time, Location, and Applications
TL;DR: The SpiderBat platform is presented, which provides node localization for sensor nodes using ultrasound pulses, which allows to localize nodes with an accuracy of a few centimeters, even in sparse networks where other approaches fail.
Journal ArticleDOI
Opportunistic Time-of-Arrival localization in fully asynchronous wireless networks
Danilo Spano,Fabio Ricciato +1 more
TL;DR: A novel Time-of-Arrival localization scheme for fully asynchronous systems, where each node clock is affected by unknown bias (temporal offset) and drift (frequency offset), which can exploit opportunistically signals and packets already available over-the-air for communication purposes.
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