车辆通信网络作为智能交通和智慧城市的重要组成部分，在保障车辆驾驶和行人安全、提升城市道路交通运行效率、提供乘客车载信息娱乐服务等方面起着越来越重要的作用。为了满足上述不同服务的差异化需求，车辆通信网络面临的主要挑战是如何为车辆与万物（V2X）间的信息交互服务提供超可靠、低延迟和大容量的数据传输速率。针对该挑战，本课题主要研究如下关键科学问题：1）高频频段和高移动性对车辆无线信道和波束性能内在影响机理；2）车辆通信网络移动边缘计算功能划分，以及层间管理、协调和负载均衡策略；3）车辆通信网络多天线可靠传输方案优化选择，以及多种传输技术的组合协作。从而达到V2X间超可靠、低延迟和大容量的信息交互传输目标，满足通信、交通不同服务的差异化需求。为将车辆通信网络打造成数字化、智能化的统一数据传输平台提供理论研究和技术基础，并为智能交通和智慧城市等领域研究应用的技术突破做出贡献。

Vehicular communication network is an important ingredient of the intelligent transportation system (ITS) and smart city, which plays a fundamental role in road safety, traffic efficiency, and passenger infotainment services. In order to satisfy the requirements of different types of services in vehicular communication networks, the key challenges are how to provide the ultra-reliable, low-latency, and large-capacity information exchange services for vehicle-to-everything (V2X) communications. Therefore, the following key scientific issues are investigated: 1) inherent influence nature of higher frequency bands and high mobility on channel variations and beam performance in vehicular communication networks; 2) mobile edge computing layer functionalities, and computing resource management in vehicular communication networks; 3) reliable transmission scheme, and cooperative combination strategy of different multiple-antenna techniques in vehicular communication networks. The requirements of different types of services will be satisfied when the above issues are addressed. Further, it is expected that, the smart and unified data transmission platform will be established in this project. And this project will benefit to the breakthrough in research and applications of ITS and smart city.