| 引用本文: | 温俊,窦强,蒋杰,等.无线传感器网络中保证覆盖的最少节点部署.[J].国防科技大学学报,2009,31(3):76-81.[点击复制] |
| WEN Jun,DOU Qiang,JIANG Jie,et al.Coverage-preserved Minimum Deployment in Wireless Sensor Networks[J].Journal of National University of Defense Technology,2009,31(3):76-81[点击复制] |
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| 无线传感器网络中保证覆盖的最少节点部署 |
| 温俊1, 窦强1, 蒋杰1, 宋磊1,2, 窦文华1 |
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(1.国防科技大学 计算机学院，湖南 长沙 410073;2.解放军理工大学 指挥自动化学院，江苏 南京 210007)
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| 摘要: |
| 无线传感器网络的能量消耗是空间不均匀的，但当前多数的部署方法考虑得较少，网络的能量利用率低，因此提出了保证覆盖率和网络生存期的最少节点部署问题。基于传感器网络的数据传输特性，从提高能量效率和降低剩余能量的角度提出了节点数递减的重叠放置方法和节点密度递减的随机部署方法。两种新部署方法比已有部署方法需要的节点数少，剩余能量低，因而提高了能量利用率。最后，仿真实验表明，两种新部署策略的能量效率是已有方法的3～4倍。 |
| 关键词: 无线传感器网络 覆盖 均匀部署 递减部署 |
| DOI： |
| 投稿日期：2009-02-10 |
| 基金项目:国家自然科学基金资助项目(60603061；60603064) |
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| Coverage-preserved Minimum Deployment in Wireless Sensor Networks |
| WEN Jun1, DOU Qiang1, JIANG Jie1, SONG Lei1,2, DOU Wenhua1 |
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(1.College of Computer, National Univ. of Defense Technology, Changsha 410073, China;2. 2.Institute of Command Automation, PLA University of Science and Technology, Nanjing 210007, China)
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| Abstract: |
| Most sensor deployments so far scarcely consider the non-uniform energy consumption in wireless sensor networks. As a result, considerable energy is wasted and energy utilization is low when networks fail. Therefore minimum nodes deployment problem is raised, which is subject to coverage and networking lifetime threshold. Motivated by delivery characteristics in wireless sensor networks, two solutions, nodes decreasing placement and density decreasing deployment, are presented, aiming at high energy utilization and minimum residual energy. Compared with the existing deployments, the two novel schemes deploy less sensor nodes, maintain less energy when nodes fail. Simulations reveal that energy efficiency of two schemes nearly reaches 3～4 times of the existing solutions. |
| Keywords: wireless sensor networks coverage uniform deployment descending deployment |
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