V2I access method and system for ensuring age fairness of vehicle information in Internet of Vehicles

Abstract

The invention discloses a V2I access method and system for ensuring age fairness of vehicle information in the Internet of Vehicles. The method comprises the following steps: obtaining the average information age of equipment including intelligent sensor nodes and vehicles at each discrete time interval, obtaining the age fairness loss of a vehicle-mounted network at each discrete time interval, and obtaining the age fairness benefit of each discrete time interval according to the age fairness loss; obtaining the state of the intelligent sensor node according to the average information age of the intelligent sensor node, the average information age sum of the vehicles, the minimum contention window of the intelligent sensor node and the number of devices in the vehicle-mounted network; and taking the state, the action and the immediate income as parameter input of a neural network of a Rainbow DQN algorithm, and finally training intelligent sensor nodes according to the Rainbow DQN algorithm. According to the invention, the problem of unfair vehicle information age caused by common communication between different sensor nodes and the vehicle in a highway scene covered by a base station is solved.

Description

technical field [0001] The invention relates to the technical field of vehicle task offloading, in particular to a V2I access method and system for ensuring age fairness of vehicle information in the Internet of Vehicles. Background technique [0002] With the development of the economy and the improvement of the quality of life, people's urgent demand for a comfortable driving experience is increasing day by day. Therefore, the increasingly common communication network and vehicle-mounted equipment have produced a large number of applications to meet the user's road driving needs. Making vehicle networking an integral part of road driving. The Internet of Vehicles is an automotive communication system that includes other types of communication, such as V2I (Vehicle-to-1 infrastructure). On the one hand, in order to ensure the normal use of these applications, this requires vehicles to communicate with base stations or roadside infrastructure. Perform frequent data exchange...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the fixed minimum contention window setting of the traditional IEEE 802.11DCF protocol cannot guarantee the fairness of data transmission under different vehicle topological structures, the present invention provides a V2I access that guarantees the age fairness of vehicle information in the Internet of Vehicles method, including the following steps:

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