| 基于移动锚节点的无线传感器网络节点定位 |
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| 引用本文： | 张正勇,孙智,王刚,余荣,梅顺良.基于移动锚节点的无线传感器网络节点定位[J].清华大学学报(自然科学版),2007,47(4):534-537. |
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| 作者姓名： | 张正勇 孙智 王刚 余荣 梅顺良 |
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| 作者单位： | 清华大学,电子工程系,北京,100084 |
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| 摘 要： | 为了更好地解决无线传感器网络节点定位精度和复杂测距技术之间的矛盾,提出一种基于移动锚节点的非测距的定位技术。9个装备有GPS接收机的可移动锚节点形成一个圆形定位区域,位于定位区域内的待定位节点接收锚节点发射的信号,并记录接收信号强度,比较接收信号强度确定自己所处区域,从而实现定位。仿真结果表明,该节点定位技术平均定位精度约为10%,与其他类似定位技术相比,能够明显提高节点定位精度。
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| 关 键 词： | 无线传感器网络 定位算法 锚节点 |
| 文章编号： | 1000-0054(2007)04-0534-04 |
| 修稿时间： | 2006年2月6日 |
Localization in wireless sensor networks with mobile anchor nodes |
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| ZHANG Zhengyong,SUN Zhi,WANG Gang,YU Rong,MEI Sunliang.Localization in wireless sensor networks with mobile anchor nodes[J].Journal of Tsinghua University(Science and Technology),2007,47(4):534-537. |
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| Authors: | ZHANG Zhengyong SUN Zhi WANG Gang YU Rong MEI Sunliang |
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| Abstract: | A range-free localization scheme using mobile anchor nodes was developed to balance the accuracy of the localization result with the complex technologies for the distance and angle estimates in wireless sensor networks.Nine anchor nodes equipped with the GPS were assumed in a circle.Nodes inside the circle record the received signal strength from the anchor nodes which is then used to compute their locations by comparisons of the received signal strengths.Simulations show that the localization error is about 10% which is better than other range-free mechanisms. |
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| Keywords: | wireless sensor networks localization algorithm anchor nodes |
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