Vehicles are highly mobile nodes; therefore, they frequently change their topology. To maintain a stable connection with the server in high-speed vehicular networks, the handover process is restarted again to satisfy the content requests. To satisfy the requested content, a vehicular-content-centric network (VCCN) is proposed. The proposed scheme adopts in-network caching instead of destination-based routing to satisfy the requests. In this regard, various routing protocols have been proposed to increase the communication efficiency of VCCN. Despite disruptive communication links due to head vehicle mobility, the vehicles create a broadcasting storm that increases communication delay and packet drop fraction. To address the issues mentioned above in the VCCN, we proposed a multihead nomination clustering scheme. It extends the hello packet header to get the vehicle information from the cluster vehicles. The novel cluster information table (CIT) has been proposed to maintain several nominated head vehicles of a cluster on roadside units (RSUs). In disruptive communication links due to the head vehicle’s mobility, the RSU nominates the new head vehicle using CIT entries, resulting in the elimination of the broadcasting storm effect on disruptive communication links. Finally, the proposed scheme increases the successful communication rate, decreases the communication delay, and ensures a high cache success ratio on an increasing number of vehicles.

中文翻译：

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在车载内容中心网络中使用多头提名聚类缓解广播风暴

车辆是高度移动的节点；因此，他们经常改变他们的拓扑。为了在高速车联网中与服务器保持稳定连接，重新启动切换过程以满足内容请求。为了满足所请求的内容，提出了以车辆内容为中心的网络（VCCN）。所提出的方案采用网内缓存代替基于目的地的路由来满足请求。在这方面，已经提出了各种路由协议来提高VCCN的通信效率。尽管由于头部车辆的移动性导致通信链路中断，但车辆会产生广播风暴，从而增加通信延迟和丢包率。为了解决上述 VCCN 中提到的问题，我们提出了一种多头提名聚类方案。它扩展了 hello 数据包头以从集群车辆中获取车辆信息。新的集群信息表 (CIT) 已被提议用于在路边单元 (RSU) 上维护集群的几个指定头车辆。在由于头部车辆的移动性造成的中断通信链路中，RSU 使用 CIT 条目提名新的头部车辆，从而消除了对中断通信链路的广播风暴效应。最后，所提出的方案提高了成功通信率，减少了通信延迟，并确保在增加的车辆数量上具有较高的缓存成功率。在由于头部车辆的移动性造成的中断通信链路中，RSU 使用 CIT 条目提名新的头部车辆，从而消除了对中断通信链路的广播风暴效应。最后，所提出的方案提高了成功通信率，减少了通信延迟，并确保在增加的车辆数量上具有较高的缓存成功率。在由于头部车辆的移动性造成的中断通信链路中，RSU 使用 CIT 条目提名新的头部车辆，从而消除了对中断通信链路的广播风暴效应。最后，所提出的方案提高了成功通信率，减少了通信延迟，并确保在增加的车辆数量上具有较高的缓存成功率。