一种新的无线传感器网络移动模型

A New Mobility Model in Wireless Sensor Network

无线传感器网络中,移动节点使用的移动模型不同必然对节点运动轨迹产生巨大的影响。通过分析当前常用的三种移动模型,并对使用最广泛的Random Waypoint移动模型进行了仿真,根据该模型存在的问题,提出了一种新的移动模型:CRW移动模型:(continuous random walk mobility model)。该模型使用牛顿力学原理来产生运动轨迹,节点的运动轨迹基本可以反映真实条件下节点的随机运动状况。

Mobility model in Wireless Sensor Network is one of the important technologies. In this article, we propose a modified mobility model for mobile wireless sensor networks that builds upon the Newtonian mechanics principle. It is named as CRW （continuous random walk mobility model）. The key idea of CRW is to create trajectory using the Newtonian mechanics principle. In the end, simulations show that node trajectory using CRW can reflect the node random movement status under a wide range of conditions.