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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Journal ArticleDOI
On the Unambiguous Distance of Multicarrier Phase Ranging With Random Hopped Frequencies
TL;DR: The feasibility of applying the frequency hopping (FH) waveform to the MCPR systems is uncovers and it is proved that, without phase noise, the UD can reach its upper bound with a large probability when only a dozen of carriers are employed, as long as the hop set of FH waveform is large enough.
Book
Localization privacy
TL;DR: This article studies the security of RFID localization, which is ideally suited for accurate object localization in context-aware computing because of the low cost, low power, light weight and endurance of RFIDs.
Proceedings ArticleDOI
A Synergy of the Wireless Sensor Network and the Data Center System
TL;DR: This work designs a Cluster-Area Sensor Network (CASN), which can be easily deployed in a cluster, with sensor nodes attached in an ad hoc manner to servers, and provides key system functions including cluster-wide command dissemination and verification of physical presence.
Dissertation
Contributions à la sécurité dans les réseaux mobiles ad Hoc
TL;DR: L'objectif principal of the these consiste a andudier les solutions susceptibles d'assurer la securite dans les reseaux mobiles ad hoc, en proposant une architecture hierarchique distribuee qui permet d'etablir une infrastructure dynamique a cle publique.
Proceedings ArticleDOI
Designing radio interferometric positioning systems for indoor localizations in millimeter wave bands
TL;DR: The space-time RIPS (STRIPS) is the enhancement of the RIPS to work in MMW bands under the flat-fading channel and achieve the range-difference (RD) estimate without approximation and is immune to channel fading effects.
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