Hop-Distance Algorithm for Self-Localization of Wireless Sensor Networks

Authors:
Dali Zhao;Yunhui Men;Linliang Zhao
Affiliations:
Northeastern University, China;Northeastern University, China;Northeastern University, China
Venue:
SNPD '07 Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 02
Year:
2007

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Transactions on computational science XI

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Abstract

In wireless sensor networks, it is difficult yet important to locate the sensor nodes. Self-localization algorithm of sensor nodes can be used in both military and civil applications. A low-cost and practical approach is proposed in this paper. The hop-distance algorithm is based on RSSI (Received Signal Strength Indicator), geometry and most likelihood estimation. Simulations show that average position error is about 20% of the radio range of the nodes in a scenario where the average ranging error is 10% and 10% of the nodes are anchor nodes.