Research On Latency And Reliability Performance Analysis Of 5G Enabled Vehicular Network

In recent years,the intelligent transportation system has become a research hotspot which is one of the most promising application scenarios in the fifth generation(5G)mobile communication systems.Different from the traditional mobile communication networks,the critical information generated by vehicles need to be transmitted with very low latency and extremely high reliability.It is difficult for traditional vehicular networks to realize ultra-reliable and low latency communication(URLLC).How to design a new vehicular network to achieve URLLC presents a great challenge.Based on the basic functions and requirements of vehicular networks,an architecture of 5G software defined vehicular network is proposed to form three logistical planes,i.e.,the application plane,the control plane and the data plane.Based on three logistical planes of network architecture,the control and data functions of 5G software defined vehicular networks could be separated to improve the flexible of vehicular networks and reduce the transmission latency in vehicular network.To evaluate the latency and reliability of messages in vehicular networks,a novel vehicular network utility model based on Euclidean norm theory is proposed for the vehicular networks.Then,based on the new vehicular network architecture,the latency and reliability performance are compared for vehicular networks with different network parameters by numerical simulations.Finally,based on the latency and reliability analysis of the vehicular network,we proposed a network slicing algorithm to improve the vehicular network utility values.In the same time,another algorithm based on Pareto improvement is proposed to improve the network utility compared with two basic algorithms in vehicular networks.