Estimating the frequency of a noisy sinusoid by linear regression
IEEE Transactions on Information Theory
The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
System architecture directions for networked sensors
ASPLOS IX Proceedings of the ninth international conference on Architectural support for programming languages and operating systems
Calibration as parameter estimation in sensor networks
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Energy-efficient surveillance system using wireless sensor networks
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Sensor network-based countersniper system
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
The flooding time synchronization protocol
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
The effects of ranging noise on multihop localization: an empirical study
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Ecolocation: a sequence based technique for RF localization in wireless sensor networks
IPSN '05 Proceedings of the 4th international symposium on Information processing in sensor networks
Countersniper system for urban warfare
ACM Transactions on Sensor Networks (TOSN)
Node density independent localization
Proceedings of the 5th international conference on Information processing in sensor networks
Minimal transmission power as distance estimation for precise localization in sensor networks
Proceedings of the 2006 international conference on Wireless communications and mobile computing
StarDust: a flexible architecture for passive localization in wireless sensor networks
Proceedings of the 4th international conference on Embedded networked sensor systems
The design and implementation of a self-calibrating distributed acoustic sensing platform
Proceedings of the 4th international conference on Embedded networked sensor systems
Localization in wireless sensor networks
Proceedings of the 6th international conference on Information processing in sensor networks
Radio interferometric tracking of mobile wireless nodes
Proceedings of the 5th international conference on Mobile systems, applications and services
Robust node localization for wireless sensor networks
Proceedings of the 4th workshop on Embedded networked sensors
BeepBeep: a high accuracy acoustic ranging system using COTS mobile devices
Proceedings of the 5th international conference on Embedded networked sensor systems
MSP: multi-sequence positioning of wireless sensor nodes
Proceedings of the 5th international conference on Embedded networked sensor systems
Tracking mobile nodes using RF Doppler shifts
Proceedings of the 5th international conference on Embedded networked sensor systems
Sequence-Based Localization in Wireless Sensor Networks
IEEE Transactions on Mobile Computing
Wireless sensor network survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Mobile sensor localization and navigation using RF doppler shifts
Proceedings of the first ACM international workshop on Mobile entity localization and tracking in GPS-less environments
DIN: An Ad-Hoc Algorithm to Estimate Distances in Wireless Sensor Networks
ADHOC-NOW '08 Proceedings of the 7th international conference on Ad-hoc, Mobile and Wireless Networks
Spinning beacons for precise indoor localization
Proceedings of the 6th ACM conference on Embedded network sensor systems
Algorithms for Location Estimation Based on RSSI Sampling
Algorithmic Aspects of Wireless Sensor Networks
Radio interferometric Quasi Doppler bearing estimation
IPSN '09 Proceedings of the 2009 International Conference on Information Processing in Sensor Networks
A measurement study of zigbee-based indoor localization systems under RF interference
Proceedings of the 4th ACM international workshop on Experimental evaluation and characterization
Event-driven adaptive duty-cycling in sensor networks
International Journal of Sensor Networks
Differential bearing estimation for RF tags
EURASIP Journal on Embedded Systems - Challenges on complexity and connectivity in embedded systems
Providing group tour guide by RFIDs and wireless sensor networks
IEEE Transactions on Wireless Communications
Relative bearing estimation from commodity radios
ICRA'09 Proceedings of the 2009 IEEE international conference on Robotics and Automation
LORD: a locality-based Distributed data sharing system for highly dense and dynamic MANETs
INFOCOM'09 Proceedings of the 28th IEEE international conference on Computer Communications Workshops
Hypothesis test of moving status for target localization algorithm in WSN
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
InTrack: high precision tracking of mobile sensor nodes
EWSN'07 Proceedings of the 4th European conference on Wireless sensor networks
Radio propagation-aware distance estimation based on neighborhood comparison
EWSN'07 Proceedings of the 4th European conference on Wireless sensor networks
Removing systematic error in node localisation using scalable data fusion
EWSN'07 Proceedings of the 4th European conference on Wireless sensor networks
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
Distributed inference for network localization using radio interferometric ranging
EWSN'08 Proceedings of the 5th European conference on Wireless sensor networks
Using mobile beacons to locate sensors in obstructed environments
Journal of Parallel and Distributed Computing
RF doppler shift-based mobile sensor tracking and navigation
ACM Transactions on Sensor Networks (TOSN)
Resilient localization for sensor networks in outdoor environments
ACM Transactions on Sensor Networks (TOSN)
On the feasibility of determining angular separation in mobile wireless sensor networks
MELT'09 Proceedings of the 2nd international conference on Mobile entity localization and tracking in GPS-less environments
A survey on localization for mobile wireless sensor networks
MELT'09 Proceedings of the 2nd international conference on Mobile entity localization and tracking in GPS-less environments
Virtual raw anchor coordinates: a new localization paradigm
ALGOSENSORS'10 Proceedings of the 6th international conference on Algorithms for sensor systems, wireless adhoc networks, and autonomous mobile entities
Localization in wireless sensor networks with known coordinate database
EURASIP Journal on Wireless Communications and Networking - Special issue on signal processing-assisted protocols and algorithms for cooperating objects and wireless sensor networks
A two-way time of flight ranging scheme for wireless sensor networks
EWSN'11 Proceedings of the 8th European conference on Wireless sensor networks
Using RF received phase for indoor tracking
Proceedings of the 6th Workshop on Hot Topics in Embedded Networked Sensors
RF angle of arrival-based node localisation
International Journal of Sensor Networks
Stochastic radio interferometric positioning in the 2.4 GHz range
Proceedings of the 9th ACM Conference on Embedded Networked Sensor Systems
Radio interferometric angle of arrival estimation
EWSN'10 Proceedings of the 7th European conference on Wireless Sensor Networks
Wireless sensor node localization by multisequence processing
ACM Transactions on Embedded Computing Systems (TECS)
BeepBeep: A high-accuracy acoustic-based system for ranging and localization using COTS devices
ACM Transactions on Embedded Computing Systems (TECS)
Pervasive and Mobile Computing
Virtual compass: relative positioning to sense mobile social interactions
Pervasive'10 Proceedings of the 8th international conference on Pervasive Computing
Cryptography and Security
Multi-channel two-way time of flight sensor network ranging
EWSN'12 Proceedings of the 9th European conference on Wireless Sensor Networks
On the efficiency of routing in sensor networks
Journal of Parallel and Distributed Computing
Virtual raw anchor coordinates: A new localization paradigm
Theoretical Computer Science
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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.