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Localization with a Mobile Beacon in Underwater Acoustic Sensor Networks
School of Information and Mechatronics, Department of Nanobio Materials and Electronics, WCU, Gwangju Institute of Science and Technology (GIST), 1 Oryong-dong, Buk-Gu, Gwangju 500-712, Korea
* Author to whom correspondence should be addressed.
Received: 21 March 2012; in revised form: 23 April 2012 / Accepted: 23 April 2012 / Published: 27 April 2012
Abstract: Localization is one of the most important issues associated with underwater acoustic sensor networks, especially when sensor nodes are randomly deployed. Given that it is difficult to deploy beacon nodes at predetermined locations, localization schemes with a mobile beacon on the sea surface or along the planned path are inherently convenient, accurate, and energy-efficient. In this paper, we propose a new range-free Localization with a Mobile Beacon (LoMoB). The mobile beacon periodically broadcasts a beacon message containing its location. Sensor nodes are individually localized by passively receiving the beacon messages without inter-node communications. For location estimation, a set of potential locations are obtained as candidates for a node’s location and then the node’s location is determined through the weighted mean of all the potential locations with the weights computed based on residuals.
Keywords: localization; range-free; mobile beacon; underwater acoustic sensor networks
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Cite This Article
MDPI and ACS Style
Lee, S.; Kim, K. Localization with a Mobile Beacon in Underwater Acoustic Sensor Networks. Sensors 2012, 12, 5486-5501.
Lee S, Kim K. Localization with a Mobile Beacon in Underwater Acoustic Sensor Networks. Sensors. 2012; 12(5):5486-5501.
Lee, Sangho; Kim, Kiseon. 2012. "Localization with a Mobile Beacon in Underwater Acoustic Sensor Networks." Sensors 12, no. 5: 5486-5501.