无线传感器网络质心定位算法的OPNET仿真实现

摘要

In the course of studyring on sensor localization for wireless networks, it is difficult to evaluaring the performance through building hardware platform. OPNET Modeler, a software tool for network modeling network performance, is employed to design and simulate the behavior of location protocol.Wireless modeling at the node and process domain levels is described after analyzing the features of the wireless sensor networks by selecting the pipe stages reasonably. And, a very detailed modeling process of centroid localization algorithm is stated. By building up simulations of wireless networks with centroid localization algorithm in OPNET, the experience of building a communication network in real world can be gained. The results show that the necessary performance data can be acquired reliably by modeling the node, process, link and protocol.%在研究无线传感器网路节点定位技术的过程中,针对搭建硬件实验平台不易实现的问题,使用OPNET MODELER对节点定位技术进行仿真建模.在分析无线传感器网络特点的基础上,合理选择无线链路的管道阶段,构建接近真实的无线网络环境,给出了仿真模型,精确刻画了质心定位算法在网络节点定位中的具体应用过程.结果表明,通过建立节点、进程、链路、协议模型和模拟网络流量传输,可以获得可靠的网络设计和优化所需要的网络性能数据.