| 异构分簇无线传感器网络中节点通信半径的研究 |
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| 引用本文： | 孙波,高随祥,陆青.异构分簇无线传感器网络中节点通信半径的研究[J].中国科学院研究生院学报,2010,27(6):818-823. |
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| 作者姓名： | 孙波 高随祥 陆青 |
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| 作者单位： | 1. 上海电力学院经济与管理学院,上海,201300
2. 中国科学院研究生院数学科学学院,北京,100049 |
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| 基金项目： | 上海电力学院人才引进基金(K-2010-12)资助 |
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| 摘 要： | 研究了在异构分簇无线传感器网络中,如何优化簇内节点的通信半径,从而最小化网络的总能耗.定义节点的能量消耗模型为E=a(dα+c)、网络半径为 R 、层数为 K .对节点通信半径不可调的网络,证明了α=2、c≤4R2时,或α=4、c≤4R2、K≤ 6 R时,最小化网络总能耗的簇内节点通信半径的上界为 α c/(α-1) .对于节点通信半径可调的网络,在α=2时,提出了自内而外依次最小化每层簇内节点的平均能耗来确定节点通信半径的算法.
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| 关 键 词： | 无线传感器网络 分簇 能耗 通信半径 |
| 收稿时间： | 2010-04-21 |
Study on optimization of communication radii of nodes in hierarchically clustered wireless sensor networks |
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| SUN Bo,GAO Sui-Xiang,LU Qing.Study on optimization of communication radii of nodes in hierarchically clustered wireless sensor networks[J].Journal of the Graduate School of the Chinese Academy of Sciences,2010,27(6):818-823. |
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| Authors: | SUN Bo GAO Sui-Xiang LU Qing |
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| Institution: | 1. School of Economics and Management, Shanghai University of Electric Power, Shanghai 201300, China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | This study focuses on how to optimize the communication radii of sensor nodes in hierarchically clustered sensor networks to minimize the total energy consumption. The energy model is E=a(dα+c), where R denotes the range of sensor networks and K is the number of layers. When the radii of sensor nodes are fixed, the upper bound of the optimal radii of sensor nodes is proved to be α c/(α-1) if α=2,c≤4R2, or if α=4, c≤4R2,K≤ 6 R. When the radii are adjustable and α=2, the radii are obtained by minimizing the average energy consumption layer by layer. |
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| Keywords: | wireless sensor networks clustering energy consumption communication radius |
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