摘要
无线传感器网络节点的位置信息对于收集信息至关重要。节点定位技术是无线传感器网络中的关键技术之一。文中在分析了传统DV-HOP算法的基础上提出了改进算法WDV-HOP(加权DV-HOP),并对改进的算法进行仿真验证。仿真结果表明,WDV-HOP算法在相同的锚节点数量及覆盖半径下,节点定位精度有3%的提高。另外,WDV-HOP算法还可减少锚节点的数量,降低了网络硬件投资成本。
The location information of the sensor node is of great importance. Node localization is one of the key technologies in Wireless Sensor Networks. In this paper, an improved algorithm WDV-HOP base on the DV- HOP is proposed. A Matlab simulation model based on WDV-HOP is made. Results demonstrate that our proposal improve node location accuracy by about 3% in with the same amount of anchor nodes and the same radio range. In addition, the WDV-HOP algorithm reduces the number of anchor nodes, reducing the network hardware cost.
出处
《电子科技》
2014年第5期186-188,192,共4页
Electronic Science and Technology
关键词
无线传感器网络
锚节点
wireless sensor networks
anchor
WDV-HOP
