A Distributed Resource Scheduling Method in Internet of Vehicles

Abstract

The present invention proposes a method for distributed resource scheduling in the Internet of Vehicles, which aims to reduce the time delay of the Internet of Vehicles system and improve the reliability of the Internet of Vehicles system. The implementation steps are: 1) constructing the Internet of Vehicles and resource pool 2) initialization V per vehicle a 3) Each vehicle V a Update the service cache queue; 4) each vehicle V a Determine the scheduling target business set and its parameters; 5) each vehicle V a Via communication means Ξ a Obtain the scheduling target single subframe resource set 6) Each vehicle V a Determine the scheduling target business S am 7) Each vehicle V a Determine the scheduling target business S am The upper limit of the number of occupied target single-subframe resources required for a single transmission 8) Acquire the results of distributed resource scheduling 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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