In this paper, we propose a packet classification based Aerial Intelligent Relay-Road Side Unit (AIR-RSU) framework introduced in every Relay-Road Side Unit (RRSU) nodes deployed across the transportation environment. The packet classification based AIR-RSU framework consists of two subsystems namely, the connectivity subsystem and packet classifier subsystem. The connectivity subsystem determines the status of network connectivity in various scenarios between RRSU nodes and vehicular nodes for every time instant T_i. In contrast, the packet classifier subsystem is used to differentiate the type of data packet requests that are invoked to access road-assisted service messages of more importance to vehicular nodes and other RRSU nodes in the transportation environment. Results indicate that both the existing AIR-RSU framework and packet classification based AIR-RSU framework provide an average of 70% dynamic network connectivity with a different combination of medium and high network connections. However, comparing to the existing AIR-RSU framework, the packet classification based AIR-RSU framework employs more amount of packet transmission with RRSU nodes due to its locality in the transportation environment.

在本文中，我们提出了一种基于分组分类的空中智能中继路边单元（AIR-RSU）框架，该框架在整个运输环境中部署的每个中继路边单元（RRSU）节点中都有介绍。基于分组分类的AIR-RSU框架由两个子系统组成，即连通性子系统和分组分类器子系统。连接子系统在每个时刻T _i确定RRSU节点和车辆节点之间在各种情况下的网络连接状态。相反，分组分类器子系统用于区分数据分组请求的类型，该数据分组请求被调用以访问对运输环境中的车辆节点和其他RRSU节点更为重要的道路辅助服务消息。结果表明，现有的AIR-RSU框架和基于数据包分类的AIR-RSU框架均提供了平均70％的动态网络连接，而中，高网络连接的组合有所不同。但是，与现有的AIR-RSU框架相比，基于分组分类的AIR-RSU框架由于其在运输环境中的位置，因此与RRSU节点之间使用的分组传输量更多。