Study On Resources Optimization And Reliability Research For Internet Of Vehicle Based On The Next Generation Network Architecture

Internet of Vehicle(IoV) is the infrastructure of the Intelligent Transportation System(ITS).It needs to provide the network service with high bandwidth,low latency,low jitter and data processing ability that supports the flexible function and service to the users.However,because of the rapid growth of vehicles and personality of users,the requirement of communication,computation and caching resources is growing very quickly.The traditional Io V cannot provide sufficient the requirement because of its network architecture and the resource limitation of a single vehicle.With the development of next generation network architecture and the appearance of 5G technology and Vehicular Fog Computing(VFC),the Io V has new choice.5G can support numerous mobile devices and the Fog Radio Access Network(F-RAN)is the popular research point in 5G.The F-RAN-based Io V can offer more communication resources to users.Meanwhile,the VFC achieved the integration of the distributed on-board computing devices in the vehicles by virtualization technology and computing offloading.It can provide a virtualized resource pool to the users.It can alleviate the resource limitation of a single vehicle.Although the both aforementioned technologies can sufficient the communication and computation resource requirement of Io V,respectively.However,there are still lots of challenges.Firstly,the architecture of F-RAN and VFC are isolated with each other.There is no architecture can integrate both of them.Secondly,the resource allocation in this architecture and guarantee the utilization efficiency of the resource are still challenges.Finally,the dynamics of vehicles lead to the unreliable VFC service.How to quantify the reliability of VFC service and improve it.All of them are the problems of the next generation network architecture based Io V that we need to solve.Toward to solve the above problems,this paper proposed the next generation network architecture based Io V architecture.The main work is as follows: 1)we proposed the VFC-based F-RAN architecture model by integrating the Fog-Based Radio Access Network(F-RAN)technology and the VFC.It can provide sufficient computational resources to the Io V;2)We proposed an optimized computing offloading mechanism that improves the utilization efficiency of the computational resources of the vehicles in the model of the VFC-based F-RAN architecture.It can make the service latency to become lower.After that,we evaluated this mechanism and tested its performance;3)We studied the unreliability that lead by the dynamics of vehicles and proposed the computing offloading reliability model of the VFC;4)According to this model,we proposed a prediction-based VFC computing offloading reliability optimizing mechanism.It can improve the reliability of the VFC with the service latency constrain.We also evaluated this mechanism and tested its performance.The work of this paper has good theory meaning and application prospect about the realization,effective resources allocation and reliability protection of Io V that bases the next generation network architecture.