Online tracking of mobile users
Journal of the ACM (JACM)
GPSR: greedy perimeter stateless routing for wireless networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
GHT: a geographic hash table for data-centric storage
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
Directed diffusion for wireless sensor networking
IEEE/ACM Transactions on Networking (TON)
Modified tree structure for location management in mobile environments
INFOCOM '95 Proceedings of the Fourteenth Annual Joint Conference of the IEEE Computer and Communication Societies (Vol. 2)-Volume - Volume 2
LLS: a locality aware location service for mobile ad hoc networks
Proceedings of the 2004 joint workshop on Foundations of mobile computing
Combs, needles, haystacks: balancing push and pull for discovery in large-scale sensor networks
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
A line in the sand: a wireless sensor network for target detection, classification, and tracking
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Military communications systems and technologies
ExScal: Elements of an Extreme Scale Wireless Sensor Network
RTCSA '05 Proceedings of the 11th IEEE International Conference on Embedded and Real-Time Computing Systems and Applications
Differential games in large-scale sensor-actuator networks
Proceedings of the 5th international conference on Information processing in sensor networks
VigilNet: An integrated sensor network system for energy-efficient surveillance
ACM Transactions on Sensor Networks (TOSN)
A distributed algorithm for managing multi-target identities in wireless ad-hoc sensor networks
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
Distance-Sensitive information brokerage in sensor networks
DCOSS'06 Proceedings of the Second IEEE international conference on Distributed Computing in Sensor Systems
A hierarchy-based fault-local stabilizing algorithm for tracking in sensor networks
OPODIS'04 Proceedings of the 8th international conference on Principles of Distributed Systems
MiniMax equilibrium of networked differential games
ACM Transactions on Autonomous and Adaptive Systems (TAAS)
Predictive QoS routing to mobile sinks in wireless sensor networks
IPSN '09 Proceedings of the 2009 International Conference on Information Processing in Sensor Networks
Distance sensitive snapshots in wireless sensor networks
OPODIS'07 Proceedings of the 11th international conference on Principles of distributed systems
International Journal of Ad Hoc and Ubiquitous Computing
Journal of Parallel and Distributed Computing
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Distributed observation and control of mobile objects via static wireless sensors demands timely information in a distance sensitive manner: information about closer objects is required more often and more quickly than that of farther objects. In this paper, we present a wireless sensor network protocol, Trail, that supports distance sensitive tracking of mobile object by in-network subscribers upon demand. Trail achieves a find time that is linear in the distance from the subscriber to the object, via a distributed data structure that is updated only locally when objects move. Trail seeks to minimize the size of the data structure. Moreover, Trail is reliable, fault-tolerant and energy-efficient, despite the network dynamics that are typical of wireless sensor networks. We evaluate the performance of Trail by simulations in a 90-by-90 sensor network and report on 105 node experiments in the context of a pursuer-evader control application.