This paper focuses on the routing protocol for driving safety that vehicle collects state message from roadside sensors in VANET-WSN. Routing Protocol for Low Power and Lossy Networks (RPL), a tree-based routing protocol, adapts naturally to our rou
详细介绍了无线传感网络中的RPL(IPv6 Routing Protocol for LowPower and Lossy Networks)路由协议,从仿真环境、参数设定、仿真场景设计等方面对RPL路由协议的仿真进行了分析。利用cooja模拟器对RPL路由协议进行了仿真,并针对分组递交率和平均功耗两个性能指标对RPL路由协议进行性能评估。仿真结果表明,RPL路由协议在分组递交率方面适用于各个场景,并能很好地适应网络的动态变化;在功耗方面不适用于树型空间位置的场景,并且对于动态变化的网络会大大