A Relay Vehicle Selection Method Based on Fairness for V2X Transmission of Internet of Vehicles

Abstract

The invention discloses a fairness-based relay vehicle selection method for V2X transmission in the Internet of Vehicles, which allocates network resources for target vehicles within the range of the cellular network fairly by selecting the relay vehicle, and when the service vehicle enters the cellular network covered by the base station When in range, send vehicle signals to the base station through the uplink, use road condition recognition to get target vehicles around the base station, and judge the number of vehicles that need to be relayed; get the subcarrier utilization rate according to the fair rate and the fair number of subcarriers, and then pass the status The set judges whether the vehicle needs to be relayed; according to the fair return function and the path duration, the only optimal relay vehicle is selected for the target vehicle in the relay vehicle set. The invention can select a suitable relay vehicle for network resource allocation of vehicles within the range of the cellular network, dynamically and fairly allocate the number of sub-carriers for the target vehicle, thereby effectively reducing the waste of network resources and improving the scheduling vitality of the cellular network.

Description

technical field [0001] The invention belongs to the field of intelligent vehicle networking, and specifically relates to a relay vehicle selection problem based on fairness to realize cellular network resource allocation of network base stations in the vehicle networking under V2X. Background technique [0002] Under the concept of the Internet of Things, the Internet of Vehicles has gradually appeared in people's field of vision - through modern information technology, the interconnection between vehicles and other vehicles can be realized, vehicle monitoring, intelligent path planning, safety control, etc., and even automatic driving can be realized to improve the city. The transportation system creates a smart city. The Internet of Vehicles is based on the intranet, inter-vehicle network, and in-vehicle mobile Internet. According to the agreed communication protocol and data interaction standards, wireless communication and information exchange are carried out between veh...

AI Technical Summary

Problems solved by technology

The 4G network bandwidth cannot meet the future transmission requirements for images and streaming media, and the 5G network and DSRC (Dedicated Short-Range Communication) autonomous network technology have not yet fully broken through.

At present, China has reached a certain level in chip design and development, but the problem of self-control and manageability is still severe

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