基于移动信标节点的无线传感器网络定位算法研究

Study on Localization Based on Mobile Beacon in Wireless Sensor Networks

对移动信标节点的无线传感器定位路径进行研究分析,分析规律性折线路径,随机路径和虚拟力方法路径的缺陷,结合两者优点,提出改进的自适应的动态路径。采用matlab仿真工具,结合RSSI测距方法以及无线传输模型,对改进算法进行仿真验证,得到更高的覆盖率和更小的误差率,从而减小了网络硬件成本,更能满足无线传感器网络定位的实际应用。

After studying on the trajectory of a mobile beacon in wireless sensor networks localization and analyzing defects of a static trajectory, random trajectory and method of virtual force, a improved automatical algorithm is proposed in this paper. By simulation tool matlab, combine ranging method of RSSI, model of radio irregularity in wireless sensor networks and the novel trajectory, specially. The simulation result demonstrates the improved algorithm can obtain a higher coverage rate and less errors. Thus, it is able to reduces cost of the hardware and satisfies the application.