Research On Resource Scheduling Methods For Connected Automated Vehicles Time-sensitive Services In Internet Of Vehicles

In view of the contradiction between the shortage of spectrum resources in Beyond Fifth Generation(B5G)/6G Internet of vehicles(IoVs)and the demand for large bandwidth and low delay of differential services of connected automated vehicles(CAVs),based on the two ideas of "throttling" and "open source",this paper designs an efficient and intelligent spectrum resource scheduling algorithm for differentiated timesensitive services in the low frequency band,and designs an integration sensing and communication based millimeter wave beam and power allocation algorithm for perception services in the millimeter wave band,so as to realize the joint and efficient utilization of spectrum resources.The main contribution of this paper is divided into two parts:(1)Due to the shortage of spectrum resources in the Internet of vehicles,the diversified time-sensitive services for B5G/6G connected automated vehicles cannot be effectively transmitted.Therefore,this paper proposes a spectrum resource scheduling model for time-sensitive services,and designs a two-tier joint resource scheduling method based on the age of information and bandwidth requirements under macro base station(MBS)and Road Side Unit(RSU).We propose a Vickery-Clarke-Groves(VCG)enabled auction model to solve the time-sensitive services resource scheduling problem,ensure the vehicle users(VUEs)service delay and achieve low complexity resource scheduling.And we design a federated learning based MBS auxiliary communication method to alleviate RSU communication pressure.Compared with the traditional algorithm,the proposed algorithm can reduce the average service delay by 42%.(2)For the optimal scheduling of millimeter wave resources based on integrated sensing and communication(ISAC),we propose a system architecture and protocol based on time division duplex(TDD)communication to realize the integration technology of multi beam perception communication,and propose the resource scheduling of IoV perception services based on space division multiplexing.By designing the working modes of VUEs direction in horizontal direction and to V2N communication in vertical direction,maximize the transmission rate of VUEs on the basis of ensuring the perception requirements of VUEs.And then we propose a millimeter wave power and beam numbers optimal allocation method based on convex optimization,which realizes the joint and efficient resource allocation of millimeter wave beam and power based on the ISAC technology of IoVs.Simulation results show that the proposed algorithm can improve the satisfaction rate of users’ perceived requirements by 26.7%compared with the traditional algorithm.