| Lifetime Prolonging Algorithms for Underwater Sensor Networks |
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| 作者姓名： | 郭忠文 李之伟 于磊 |
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| 作者单位： | College of Information Science and Engineering Ocean University of China，College of Information Science and Engineering Ocean University of China，Department of Oceanography Ocean University of China，Qingdao 266071 China，Qingdao 266071 China，Qingdao 266003 China |
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| 摘 要： | 1.IntroductionRecent advances in acoustic communication,sensor networks and ad hoc networks have motivatedthe development of UASNs which are generallyformed by a surface station,autonomous underwater ve-hicles(AUVs)and sensor nodes that possess sensing,si…
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| 关 键 词： | 传感器 网路 海下工程 过程处理 |
| 收稿时间： | 2005-09-18 |
| 修稿时间： | 2006-03-08 |
Lifetime Prolonging Algorithms for Underwater Sensor Networks |
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| GUO Zhong-wen,LI Zhi-wei,YU Lei.Lifetime Prolonging Algorithms for Underwater Sensor Networks[J].China Ocean Engineering,2006,20(2):325-334. |
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| Authors: | GUO Zhong-wen LI Zhi-wei YU Lei |
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| Abstract: | Underwater acoustic modem technology has attained a level of maturity to support underwater acoustic sensor networks (UASNs) which are generally formed by acoustically connected sensor nodes and a surface station providing a link to an on-shore control center. While many applications require long-term monitoring of the deployment area, the battery-powered network nodes limit the lifetime of UASNs. Therefore, designing a UASN that minimizes the power consumption while maximizing lifetime becomes a very difficult task. In this paper, a method is proposed to determine the optimum number of clusters through combining an application-specific protocol architecture and underwater acoustic communication model so as to reduce the energy dissipation of UASNs. Deploying more sensor nodes which work alternately is another way to prolong the lifetime of UASNs. An algorithm is presented for selecting sensor nodes and putting them into operation in each round, ensuring the monitoring to the whole given area. The present results show that the algorithm can help prolong system lifetime remarkably when it is applied to other conventional approaches for sensor networks under the condition that the sensor node density is high. |
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| Keywords: | lifetime acoustic networks underwater sensor networks telemetry |
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