The bits and flops of the n-hop multilateration primitive for node localization problems
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
AUV-Aided Localization for Underwater Sensor Networks
WASA '07 Proceedings of the International Conference on Wireless Algorithms,Systems and Applications
UDB: Using Directional Beacons for Localization in Underwater Sensor Networks
ICPADS '08 Proceedings of the 2008 14th IEEE International Conference on Parallel and Distributed Systems
An Area Localization Scheme for Large Scale Underwater Wireless Sensor Networks
CMC '09 Proceedings of the 2009 WRI International Conference on Communications and Mobile Computing - Volume 01
3D Underwater Sensor Network Localization
IEEE Transactions on Mobile Computing
Analyzing the Performance of Acoustic Channel in Underwater Wireless Sensor Network (UWSN)
AMS '10 Proceedings of the 2010 Fourth Asia International Conference on Mathematical/Analytical Modelling and Computer Simulation
Scalable Localization with Mobility Prediction for Underwater Sensor Networks
IEEE Transactions on Mobile Computing
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For Underwater Wireless Sensor Networks (UWSN), identifying the location of each sensor node is an important issue, which is also a challenging task. Most of the existing localization schemes assume that the network has a plurality of anchor nodes to assist positioning. Usually, they make use of Autonomous Underwater Vehicle (AUV) or node with special equipment as anchor node, because Global Positioning System (GPS) is invalid in underwater environment. High cost and poor flexibility make them not well suitable for UWSN. In order to overcome this disadvantage, we propose an Anchor-Free Localization Algorithm, called AFLA. It is designed for active-restricted underwater sensor networks. AFLA does not need anchor node's information, and makes use of the relationship of adjacent nodes. It could be used in both static and dynamic networks. The obtained simulation results indicate that AFLA is an effective localization scheme for UWSN.