A method for switching access points of Internet of Vehicles based on software-defined network

Abstract

The invention relates to a method for switching access points of the Internet of Vehicles based on a software-defined network, including: using the global control function of a controller in a software-defined wireless network architecture to sense the location of a wireless access point and a mobile vehicle terminal, and find a suitable switch Access point: Using multiple network interfaces of the vehicle terminal, it is alternately responsible for the tasks of data transmission and background scanning during the mobile switching process, so as to realize uninterrupted information interaction between vehicles. The software-defined Internet of Vehicles architecture of the present invention separates the data plane and control plane of traditional equipment, directly controls the behavior of the Internet of Vehicles through programming, abstracts the underlying infrastructure, and provides open interfaces for upper-layer applications to achieve unified management. and upgrades to meet the performance requirements of different vehicle users; background scanning and multiple network interfaces alternately perform tasks, greatly reducing switching delays, and effectively solving the problems of fast vehicle mobility and frequent access point switching.

Description

technical field [0001] The invention belongs to the field of wireless network mobility management and service quality, and is applied to the Internet of Vehicles. Background technique [0002] Among the many wireless network access technologies, the Internet of Vehicles (IOV) is the development direction of the intelligent transportation system. The Internet of Vehicles itself has the characteristics of frequent topology changes and fast movement. It is hoped that sufficient resources can be provided anytime and anywhere. For their access to obtain higher-quality services, therefore, various telecom operators and service providers choose to deploy wireless access points (Access Point, AP) on a large scale to cover a larger area. The dense deployment of wireless access points will inevitably lead to mutual interference and difficult unified management. The current Internet of Vehicles architecture usually adopts a centralized networking mode of thin APs and wireless controlle...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a method for switching access points of the Internet of Vehicles based on software-defined networks, and solve the problem of smooth switching of vehicle users in the Internet of Vehicles when moving between different access points

Images