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计算机系统应用英文版:2012,21(1):73-76
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一种改进的无线自主传感器网络定位算法
(湖北工业大学 机械工程学院, 武汉 430068)
Improved Location Algorithm for Wireless Sensor Networks
(School of Mechanical and Engineering, Hubei University of Technology, Wuhan 430068, China)
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Received:May 17, 2011    Revised:June 15, 2011
中文摘要: 节点定位技术是无线自主传感器网络中的关键技术之一。为了提高定位精度,提出一种基于几何斜率的无线传感器网络(WSN)定位算法。网络区域中的节点分为锚节点和未知节点,利用几何学斜率的方法选取合适的锚节点,能够更精确地确定未知节点的位置。在三边测量法上运用最小平方误差方法求解,能够提高算法的精度。在新算法的基础上建立Matlab仿真。仿真结果表明改进的DV-HOP算法,在相同的锚节点数量的情况下,节点定位精度有明显的提高。
Abstract:The location information of the sensor node is one of the key technologies in Wireless sensor network(WSN). To improve the location accuracy, a geometric localization algorithmis proposed for wireless sensor networks. Nodes in the network area is divided into anchor nodes and unknown nodes, using the method of slope geometry, select the appropriate anchor node, to determine the location of unknown nodes more accurately. This paper proposed the least square error method based on the trilateration to improve the algorithm accuracy. A Matlab simulation model based on the new algorithm is established. The results show that the proposed algorithm improves node location accuracy a lot with same amount of anchor nodes under same radio range condition.
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基金项目:武汉市晨光计划(200750731305);湖北省教育厅项目(B200714003)
引用文本:
殷琪,徐巍.一种改进的无线自主传感器网络定位算法.计算机系统应用,2012,21(1):73-76
YIN Qi,XU Wei.Improved Location Algorithm for Wireless Sensor Networks.COMPUTER SYSTEMS APPLICATIONS,2012,21(1):73-76