Distributed resource scheduling method in Internet of Vehicles

Abstract

The invention provides a distributed resource scheduling method in the Internet of Vehicles, and aims to reduce the time delay of an Internet of Vehicles system and improve the reliability of the Internet of Vehicles system, and the implementation steps are as follows: 1) constructing the Internet of Vehicles and a resource pool; 2) initializing a service cache queue of each vehicle Va; 3) updating the service cache queue by each vehicle Va; 4) enabling each vehicle Va to determine a scheduling target business set and parameters thereof; (5) enabling each vehicle Va to obtain a scheduling target single subframe resource set through the communication device Xa; (6) enabling each vehicle Va to determine the transmission target frequency of a scheduling target service Sam; (7) enabling each vehicle Va to determine the upper limit of the occupied target single subframe resource quantity required by single transmission of the scheduling target service Sam; (8) obtaining a distributed resource scheduling result in the Internet of Vehicles.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a distributed resource scheduling method in the Internet of Vehicles, which can be used for autonomous communication between vehicles in the Internet of Vehicles. Background technique [0002] As the application of wireless communication and Internet of Things technology in the field of automobile transportation, the Internet of Vehicles technology is developing rapidly, and its scenarios can be summarized as "Vehicle to Everything (V2X for short)". The 3rd Generation Partnership Program (3rd Generation Partnership Program, referred to as 3GPP) stipulated the V2X technology (Cellular-V2X, referred to as C-V2X) based on the cellular network architecture in the 12th version of the standard released in 2015. With the continuous development of protocol standards, C-V2X has currently gone through two stages: LTE-V2X and 5G NR (New Radio) V2X. [0003] In a cellular netwo...

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Problems solved by technology

[0007] Although this method considers the service quality requirements of the business in the distributed resource scheduling scenario, it only considers the delay constraint in the service quality and does not consider the packet error rate constraint of the business, which may easily lead to the difference between the importance of the business and the The mismatch in the quality of allocated resources leads to a reduction in the transmission quality of services with high reliability requirements, making it difficult to guarantee the low latency requirements of the Internet of Vehicles system; at the same time, the service buffer queue considered by this method is infinite in size, and the actual situation is not considered The congestion of the business cache queue will easily cause the rate of business in and out of the queue to mismatch, which will lead to packet loss of the business at the cache queue, making it difficult to ensure the high reliability communication requirements of the Internet of Vehicles system

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