异构网络融合场景下车联网的移动性管理和资源管理

Mobility Management and Resource Management of Internet of Vehicles in Converged Heterogeneous Network Scenario

针对异构网络融合场景下车联网的特点,研究了车联网中的移动性管理技术和资源管理技术。在介绍物联网及车联网基本概念的基础上,分析了车联网中异构网络融合的应用场景,通过研究车联网中的通信设备、通信形式、组网方式等,提出了车联网的网络架构。与一般异构网络相比,车联网中车辆移动速度快,造成车辆接入公共网络时频繁切换的问题,为此,研究了车联网中的移动性管理技术。车联网中通信设备以及通信形式的多样化带来了多样化的业务需求,针对不同优先级业务提出了车联网中基于优先级的资源管理技术,即在异构网络的资源管理中必须保证高优先级业务在资源分配、接入控制、网络选择等方面始终处于优先状态。

According to characteristics of internet of vehicles in converged heterogeneous network scenario, mobility management and resource management were studied. The converged heterogeneous network scenario was analyzed based on the concepts of internet of things and internet of vehicles. Network architecture of internet of vehicles was proposed by research of communication equipments, communication mode and networking. Compared with general heterogeneous network, vehicles are moving quickly in internet of vehicles which leads to frequent handoff. In order to solve this problem, mobility management in internet of vehicles was studied. Various communication equipments and communication modes lead to various service requirements and resource management based on priority was proposed according to different priority services. In resource management of heterogeneous network, high priority service should have priority in resource allocation, access control and network selection.