Localization from mere connectivity
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
Dynamic Clustering for Acoustic Target Tracking in Wireless Sensor Networks
ICNP '03 Proceedings of the 11th IEEE International Conference on Network Protocols
Robust distributed network localization with noisy range measurements
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
IEEE Transactions on Signal Processing
DCTC: dynamic convoy tree-based collaboration for target tracking in sensor networks
IEEE Transactions on Wireless Communications
Energy balancing cooperative diversity for wireless sensor networks
International Journal of Communication Networks and Distributed Systems
An Energy-Efficient Object Tracking Algorithm in Sensor Networks
WASA '08 Proceedings of the Third International Conference on Wireless Algorithms, Systems, and Applications
Virtual WiFi network database construction for positioning services
CFI '09 Proceedings of the 4th International Conference on Future Internet Technologies
Herd-Based Target Tracking Protocol in Wireless Sensor Networks
WASA '09 Proceedings of the 4th International Conference on Wireless Algorithms, Systems, and Applications
Signal dragging: effects of terminal movement on war-driving in CDMA/WCDMA networks
LoCA'07 Proceedings of the 3rd international conference on Location-and context-awareness
Lifetime maximisation algorithm in Wireless Sensor Network
International Journal of Ad Hoc and Ubiquitous Computing
Computers and Electronics in Agriculture
Energy efficient transmission scheduling for infrastructure sensor nodes in location systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
EURASIP Journal on Wireless Communications and Networking - Special issue on theoretical and algorithmic foundations of wireless ad hoc and sensor networks
Energy-efficient collaborative tracking in wireless sensor networks
International Journal of Sensor Networks
Localized policy-based target tracking using wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
Journal of Parallel and Distributed Computing
Angle and ranging based localization method for ad hoc network
The Journal of Supercomputing
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In this paper, we propose and evaluate a distributed, energy-efficient, light-weight framework for target localization and tracking in wireless sensor networks. Since radio communication is the most energy-consuming operation, this framework aims to reduce the number of messages and the number of message collisions, while providing refined accuracy. The key element of the framework is a novel localization algorithm, called Ratiometric Vector Iteration (RVI). RVI is based on distance ratio estimates rather than absolute distance estimates which are often impossible to calculate. By iteratively updating the estimated location using the distance ratio, RVI localizes the target accurately with only three sensors' participation. After localization, the location of the target is reported to the subscriber. If the target is stationary or moves around within a small area, it is wasteful to report (almost) the same location estimates repeatedly. We, therefore, propose to dynamically adjust a reporting frequency considering the target's movement so that we can reduce the number of report messages while maintaining tracking quality. Extensive simulation results show that the proposed framework combining RVI and the movement-adaptive report scheduling algorithm reduces the localization error and total number of the transmitted messages up to half of those of the existing approaches.