| 无线传感器网络中非均匀的节点布置 |
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| 引用本文： | 羊四清,袁辉勇,易叶青. 无线传感器网络中非均匀的节点布置[J]. 计算机工程与应用, 2008, 44(24): 118-120. DOI: 10.3778/j.issn.1002-8331.2008.24.035 |
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| 作者姓名： | 羊四清 袁辉勇 易叶青 |
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| 作者单位： | 湖南人文科技学院计算机系,湖南,娄底,417000;湖南大学计算机与通信学院,长沙,410082 |
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| 基金项目： | 湖南省教育厅科研项目，湖南人文科技学院青年课题，湖南省重点学科建设项目 |
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| 摘 要： | 在无线传感器网络中，传感器节点将收集到的数据传输到簇头，经簇头聚合后数据包以多跳方式发送到基站。靠近基站的节点，因转发的数据较多而提早死亡，出现所谓的能量空洞问题。为此，对无线传感器网络中节点的能耗情况进行了研究，提出了一种非均匀的节点布置算法，得出了一个布置传感器节点的密度函数，在靠近基站的区域内布置较多的节点。仿真实验表明，非均匀的节点布置算法能有效延长网络的生命周期。
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| 关 键 词： | 无线传感器网络 非均匀布置 生命周期 |
| 收稿时间： | 2007-10-30 |
| 修稿时间： | 2008-1-7 |
Non-uniform node deployment in wireless sensor networks |
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| YANG Si-qing,YUAN Hui-yong,YI Ye-qing. Non-uniform node deployment in wireless sensor networks[J]. Computer Engineering and Applications, 2008, 44(24): 118-120. DOI: 10.3778/j.issn.1002-8331.2008.24.035 |
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| Authors: | YANG Si-qing YUAN Hui-yong YI Ye-qing |
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| Affiliation: | 1.Department of Computer Science，Hunan Institute of Humanities，Science and Technology，Loudi，Hunan 417000，China 2.College of Computer and Communication，Hunan University，Changsha 410082，China |
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| Abstract: | In wireless sensor networks sensor nodes transmit their collect data to designated cluster heads,cluster heads aggregate the data packets and send them via multi-hop communication to the base station.Nodes closer to the base station tend to die earlier because more data packets are needed to transmit,which is so-called energy holes problem.To address the problem,we propose a non-uniform deployment algorithm through investigating energy consumption in wireless sensor network.The algorithm presents a density function to deploy sensor nodes and enables that area closer to the base station has more nodes.Simulation results show that our proposed algorithm is effective for prolonging the network lifetime. |
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| Keywords: | wireless sensor networks non-uniform deployment lifetime |
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