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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Direct inference of location-related context from wireless signal strength
TL;DR: This dissertation derives location-related context like mobility-states, co-mobility, speed and decelerations directly from the wireless signal strength information, showing that the time-series of signal strength is robust to environmental factors that typically negatively affect the RSS-based localization systems.
Proceedings ArticleDOI
Localization by superposing beats: Laboratory experiments and detection algorithm
Matthias Schneider,Ralf Salomon +1 more
TL;DR: This paper proposes a new localization procedure that is based on the superposition of particularly parameterized beats that can be utilized in Logistics, factory and laboratory automation, as well as warehouse management.
Journal ArticleDOI
An Innovative Positioning System with Unsynchronized Interferometric Modulated Signals in Wireless Sensor Networks
TL;DR: This paper investigates the sensor localization problem and presents Stochastic Radio Interferometric Positioning System with Unsynchronized Modulated Signals (SRIPS_UMS), which overcomes time synchronization problem between distributed hardware and its viability and advantages are demonstrated through mathematical models and extensive simulations.
Dissertation
A real-time target tracking system for wireless embedded nodes using ranging measurements
TL;DR: The main topic of this thesis pertains to the design of a framework for real-time, range-only target tracking utilizing low power wireless embedded nodes, designed to operate solely on range measurements which are obtained without the need for additional hardware incorporated on the embedded nodes.
Book ChapterDOI
Software-Defined Radio for Versatile Low-Power Wireless Sensor Systems
TL;DR: This paper shows the first results of the work through the implementation and evaluation of a simple baseband FSK modem in the SmartFusion FPGA fabric and demonstrates how to leverage existing software radio projects to use the baseband modem in a wide range of radio frequency bands.
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