中文摘要：

车联网旨在实现一体化智能交通体系和无处不在的网络，其关键技术在于全网数据共享和车辆宽带接入。现有车辆网络架构因其不同设计目标而缺少统一的协议栈和数据接口，难以有效进行全网数据共享或协同通信；其多信道机制缺少灵活性，整体网络性能受网络节点密度影响较大。文章提出面向安全应用的车联网无线网络架构及其协同通信协议栈，并对车联网自适应多信道媒质接入协议进行研究。

英文摘要：

nternet of Vehicles is designed for intelligent transportation and ubiquitous Internet access. Its key is whole-network data sharing technology and vehicular broadband access. Because existing vehicular networks have different design objectives and lack a unified protocol stack and data interface, it is difficult to share data across the whole network or communicate cooperatively. Overall network performance is also affected by network node density because multichannel mechanisms lack flexibility. This paper puts forward a wireless network architecture and cooperative communication protocol stack for Internet of Vehicles. It also discusses self-adaptive multichannel MAC.