| 基于信标优化的无线传感网络定位算法研究 |
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| 引用本文： | 胡伟,徐福缘.基于信标优化的无线传感网络定位算法研究[J].计算机工程与设计,2012,33(4):1324-1328. |
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| 作者姓名： | 胡伟 徐福缘 |
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| 作者单位： | 1. 上海理工大学管理学院,上海200093;绵阳师范学院数学与计算机科学学院,四川绵阳621000
2. 上海理工大学管理学院,上海,200093 |
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| 基金项目： | 国家自然科学基金项目(70672110);上海市(第三期)重点学科基金项目(S30504) |
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| 摘 要： | 针对传统无线传感器网络节点定位精度低、能耗大及适应性不强等缺陷,提出了一种基于信标优化的无线传感网络定位算法ConDV-Hop.该算法采用贡献因子对信标节点进行优化选择,使过程累积误差大大减少,利用反馈思想引入修正系数对待定位节点的初始估算位置进行修正,有效地克服了定位精度对网络拓扑的依赖.仿真实验结果表明,ConDVHop算法在均匀网络和非均匀网络中都表现出良好的性能,是无线传感器网络中节点定位的一种实用方案.
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| 关 键 词： | 定位算法 平均跳距 位置修正 DV-Hop 无线传感器网络 |
Research of localization algorithm based on optimal beacon for wireless sensor networks |
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| HU Wei
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XU Fu-yuan.Research of localization algorithm based on optimal beacon for wireless sensor networks[J].Computer Engineering and Design,2012,33(4):1324-1328. |
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| Authors: | HU Wei XU Fu-yuan |
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| Affiliation: | 1 (1.School of Business,University of Shanghai for Science and Technology,Shanghai 200093,China; 2.School of Mathematics and Computer Science,Mianyang Normal University,Mianyang 621000,China) |
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| Abstract: | Aimed at the problems of traditional wireless sensor network node with low positioning accuracy and much energy consumption and inflexibility,the localization algorithm based on optimal beacon for wireless sensor networks is presented.The ConDV-Hop localization algorithm use contribution factor to select the optimizing beacon nodes,and the accumulated error is greatly reduced.By using feedback thinking to define correction factors for correcting the initial estimating location,the dependence feature of positioning accuracy on network topology is effectively overcome.The simulation results show that the ConDV-Hop algorithm have good performance in the homogeneous network and heterogeneous network.So it is a practical solution for the node localization in wireless sensor networks. |
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| Keywords: | location algorithm average hop distance correction in position DV-Hop wireless sensor networks |
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