TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
A Localization Algorithm for Underwater Wireless Sensor Networks Based on Ranging Correction and Inertial Coordination |
| 영문제목(English Title) |
A Localization Algorithm for Underwater Wireless Sensor Networks Based on Ranging Correction and Inertial Coordination |
| 저자(Author) |
Ying Guo
Xiaoyue Kang
Qinghe Han
Jingjing Wang
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| 원문수록처(Citation) |
VOL 13 NO. 10 PP. 4971 ~ 4987 (2019. 10) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Node localization is the basic task of underwater wireless sensor networks (UWSNs). Most of the existing underwater localization methods rely on ranging accuracy. Due to the special environment conditions in the ocean, beacon nodes are difficult to deploy accurately. The narrow bandwidth and high delay of the underwater acoustic communication channel lead to large errors. In order to reduce the ranging error and improve the positioning accuracy, we propose a localization algorithm based on ranging correction and inertial coordination. The algorithm can be divided into two parts, Range Correction based Localization algorithm (RCL) and Inertial Coordination based Localization algorithm (ICL). RCL uses the geometric relationship between the node positions to correct the ranging error and obtain the exact node position. However, when the unknown node deviates from the deployment area with the movement of the water flow, it cannot communicate with enough beacon nodes in a certain period of time. In this case, the node uses ICL algorithm to combine position data with motion information of neighbor nodes to update its position. The simulation results show that the proposed algorithm greatly improves the positioning accuracy of unknown nodes compared with the existing localization methods.
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| 키워드(Keyword) |
wireless sensor networks
underwater
node location
ranging correction
inertial coordination
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| 파일첨부 |
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