The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Exposure in wireless Ad-Hoc sensor networks
Proceedings of the 7th annual international conference on Mobile computing and networking
ICDCS '01 Proceedings of the The 21st International Conference on Distributed Computing Systems
Range-free localization schemes for large scale sensor networks
Proceedings of the 9th annual international conference on Mobile computing and networking
The coverage problem in a wireless sensor network
WSNA '03 Proceedings of the 2nd ACM international conference on Wireless sensor networks and applications
Localization for mobile sensor networks
Proceedings of the 10th annual international conference on Mobile computing and networking
Barrier coverage with wireless sensors
Proceedings of the 11th annual international conference on Mobile computing and networking
On the error characteristics of multihop node localization in ad-hoc sensor networks
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
Organizing a global coordinate system from local information on an ad hoc sensor network
IPSN'03 Proceedings of the 2nd international conference on Information processing in sensor networks
Coverage Estimation in the Presence of Occlusions for Visual Sensor Networks
DCOSS '08 Proceedings of the 4th IEEE international conference on Distributed Computing in Sensor Systems
IEEE Journal on Selected Areas in Communications - Special issue on body area networking: Technology and applications
ETFA'09 Proceedings of the 14th IEEE international conference on Emerging technologies & factory automation
Adaptive sensor activation for target tracking in wireless sensor networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Coverage properties of clustered wireless sensor networks
ACM Transactions on Sensor Networks (TOSN)
EURASIP Journal on Wireless Communications and Networking - Special issue on theoretical and algorithmic foundations of wireless ad hoc and sensor networks
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Target tracking and localization are important applications in wireless sensor networks. Although the coverage problem for target detection has been intensively studied, few consider the coverage problem from the perspective of target localization. In this paper, we propose two methods to estimate the necessary sensor density which can guarantee a localization error bound over the sensing field. In the first method, we convert the coverage problem for localization to a conventional disk coverage problem, where the sensing area is a disk centered around the sensor. Our results show that the disk coverage model requires 4 times more sensors for tracking compared to detection applications. We then introduce the idea of sector coverage, which can satisfy the same coverage conditions with 2 times less sensors over the disk coverage approach. This shows that conventional disk coverage model is insufficient for tracking applications, since it overestimates the sensor density by two times. Simulation results show that the network density requirements derived through sector coverage are close to the actual need for target tracking applications.