Localization with Dive'N'Rise (DNR) beacons for underwater acoustic sensor networks
Proceedings of the second workshop on Underwater networks
Localization refinement for wireless sensor networks
Computer Communications
A three dimensional localization algorithm for underwater acoustic sensor networks
IEEE Transactions on Wireless Communications
Localization for large-scale underwater sensor networks
NETWORKING'07 Proceedings of the 6th international IFIP-TC6 conference on Ad Hoc and sensor networks, wireless networks, next generation internet
Localization and synchronization for 3D underwater acoustic sensor networks
UIC'07 Proceedings of the 4th international conference on Ubiquitous Intelligence and Computing
Asymmetric multi-path division communications in underwater acoustic networks with fading channels
Journal of Computer and System Sciences
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Localization is an indispensable part for most Underwater Wireless Sensor Networks (UWSNs). In these networks, acoustic ranging signals are typically used. Because of the depth dependent sound speed, ray bends in water. This presents a unique problem making conventional localization algorithms assuming straight line distances between target and anchor nodes inaccurate. In this work, authors present a scheme that takes in to account bending of path, to provide an accurate location estimate in UWSNs. The approach makes use of standard ray equations to model the path followed by rays of sound in water. The results of the preliminary study using this scheme are also reported.