Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
Localization from mere connectivity
Proceedings of the 4th ACM international symposium on Mobile ad hoc networking & computing
Robust distributed network localization with noisy range measurements
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Localization in underwater sensor networks: survey and challenges
WUWNet '06 Proceedings of the 1st ACM international workshop on Underwater networks
A Theory of Network Localization
IEEE Transactions on Mobile Computing
Range-Free Localization Using Expected Hop Progress in Wireless Sensor Networks
IEEE Transactions on Parallel and Distributed Systems
3D Underwater Sensor Network Localization
IEEE Transactions on Mobile Computing
Cramér-Rao bound for hybrid GNSS-terrestrial cooperative positioning
IEEE Communications Letters
Sensor Node Localization with Uncontrolled Events
ACM Transactions on Embedded Computing Systems (TECS)
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Localizability and accuracy are two fundamental problems in many range-based localization schemes for sensor networks. This poster addresses the two problems theoretically by introducing two new concepts: the effective degree and the lower bound of geometric dilution of precision (GDOP). We prove that the network is not localizable unless the average effective degree is greater than or equal to the dimension of the location space. We further show that the average localization accuracy is approximately inversely proportional to the average degree.