Robust Monte Carlo localization for mobile robots
Artificial Intelligence
Radial Basis Functions
Semidefinite programming for ad hoc wireless sensor network localization
Proceedings of the 3rd international symposium on Information processing in sensor networks
Wireless Sensor Devices for Animal Tracking and Control
LCN '04 Proceedings of the 29th Annual IEEE International Conference on Local Computer Networks
Walking GPS: A Practical Solution for Localization in Manually Deployed Wireless Sensor Networks
LCN '04 Proceedings of the 29th Annual IEEE International Conference on Local Computer Networks
Range-free localization and its impact on large scale sensor networks
ACM Transactions on Embedded Computing Systems (TECS)
Models and solutions for radio irregularity in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
MoteTrack: a robust, decentralized approach to RF-based location tracking
Personal and Ubiquitous Computing
Tracking mobile nodes using RF Doppler shifts
Proceedings of the 5th international conference on Embedded networked sensor systems
SpaseLoc: An Adaptive Subproblem Algorithm for Scalable Wireless Sensor Network Localization
SIAM Journal on Optimization
Ultra-wideband Positioning Systems: Theoretical Limits, Ranging Algorithms, and Protocols
Ultra-wideband Positioning Systems: Theoretical Limits, Ranging Algorithms, and Protocols
Relative location estimation in wireless sensor networks
IEEE Transactions on Signal Processing
Real-time trajectory estimation in mobile ad hoc networks
Proceedings of the 12th ACM international conference on Modeling, analysis and simulation of wireless and mobile systems
Indoor Localization Using Neural Networks with Location Fingerprints
ICANN '09 Proceedings of the 19th International Conference on Artificial Neural Networks: Part II
Localization using radial basis function networks and signal trength fingerprints in WLAN
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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
Enhancing RSSI-based tracking accuracy in wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
An Advanced DV-Hop Localization Algorithm for Wireless Sensor Networks
Wireless Personal Communications: An International Journal
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We present an algorithm enabling localization of moving wireless devices in an indoor setting. The method uses only RF signal strength and can be implemented without specialized hardware. The mobility of the users is modeled by learning a function mapping a short history of signal strength values to a 2D position. We use radial basis function (RBF) fitting to learn a reliable estimate of a mobile node's position given its past signal strength measurements. Even though we deal with extremely noisy measurements in a cluttered indoor setting, nodes are not required to be stationary during measurement or learning. We evaluate our algorithm in a real indoor setting using MicaZ motes, achieving an average localization accuracy of 1.3 m. In our experiments, using historical data improves the localization accuracy by almost a factor of two compared to using only the most current measurements.