车联网数据传输系统建模与性能基本极限理论研究

随着移动宽带通信技术的快速发展，智能车载终端（也包括司机和乘车人的智能手机）将成为移动互联网的重要入口。以（车，路，人）为主体的通信网络正在逐步建立。不断提高的信息服务需求将给承载网络（即车联网）带来越来越大的数据传输负载，使得车联网的数据传输能力也将面临挑战。当前车联网数据传输的相关研究主要面向车联网的局部场景来设计专用数据传输协议，尚未综合地考虑车联网复杂的通信架构和多样的信息服务类型，尚未深入地分析车-路-人网络对数据传输的影响，尚未系统地研究车联网的数据传输机制。本项目拟从通信网络、传输需求和逻辑关系三个层面来建模车联网网络层数据传输系统，解析车网、路网、人网之内以及三网之间的复杂逻辑关系对车联网数据传输的业务需求和性能增益两个方面的影响，给出大规模车联网数据传输性能基本极限的分析方法和理论结果，为评估车联网数据传输协议性能，优化车联网数据传输系统架构提供理论基础和实践指导。

With the rapid development of broadband mobile communication technologies, intelligent vehicle terminals (including drivers’ and passengers’ smartphones) will become the important portals into the Mobile Internet. A new paradigm of communication networks, called the Internet of Vehicles (IOV), is being established over the network consisting of vehicles, roads, and people. The continuously increased demands of service application will put the heavy pressure of traffic on the underlying networks, i.e., IOV. Therefrom, there will be a big challenge to the transportation capacity of IOV. Existing works about the issues of data transportation in IOV mainly focus on devising dedicated transmission protocols for some special scenarios. They don’t synthetically take into account the diversity of communication architectures and information services, neither do deep analysis of the impacts of vehicle-road-people on the data transportation, nor systematically investigate data transmission scheme in IOV. Our project will model the data transportation in IOV from the aspect of analyzing the impacts of the complex relationships in the network of vehicles, the network of roads, the network of people, and the network of these networks, exerting on business requirements and performance enhancement for IOV’s data transportation. Our project will give the analytical methods and theoretical results for large-scale IOV data transportation. The project will provide some theoretical basis and practical guidance for evaluating the performance of data transmission protocols and optimizing the architecture of data transportation in IOV.