Research On Computing Caching And Communication Resource Scheduling Algorithm Based On Network Slicing

The rapid development of wireless communication and network,mobile Internet and Internet of Things and industries has spawned new business scenarios such as ultra-high definition video,virtual reality,smart home,artificial intelligence and car networking,and the booming of terminal devices.For future needs,diverse business scenarios require differentiated performance metrics such as speed,latency,reliability,and connection density.However the current network architecture and communication mode cannot meet the differentiated performance metrics requirements of these services and applications.Faced with the above requirements and challenges,it is extremely urgent to develop 5G.5G combined multiple technologies will provide faster transmission rate,greater connection density,lower latency and higher reliability to meet the needs of these business scenarios.The network slicing technology can implement multiple logical networks on the same physical network to carry diverse business scenarios,which can customize the dedicated network to meet the business needs,and greatly reduce capital expenditures and operating expenses.Thus it becomes one of the research hotspots in the field of 5G mobile communication network.Since the system resources are shared among these network slicings,the varieties of system resources cause more complexity and difficulty of resource scheduling.Therefore,efficient strategies and algorithms are urgently needed to achieve efficient resource scheduling among network slicings.Since each network slicing contains many different network functions and utilizes these resources obtained to ensure the performance requirements.So we can know that the scheduling algorithm of the system not only affects the utility of the system resources,but also affects the performance of the network slicing.Aiming at how to meet the differentiated performance requirements of diverse business scenarios based on network slicing,this dissertation will take the efficient resource scheduling strategies and algorithms among network slicings as the main research content,and design effective resource scheduling algorithms by analyzing the different resources owned by the system and the requirements of network slicings.It will further develop and improve the basic theory and key technologies of the network slicing.In order to realize the reasonable allocation of communication resources and meet the needs of different services,this dissertation will analyze and design efficient scheduling algorithm for communication resources(power resources and bandwidth resources).Under the premise of the performance requirements of different network slicings and the total amount of communication resources owned by the base station,the communication system model and resource scheduling algorithm will be established.In order to further reduce the transmission delay and improve the quality of service,this dissertation will study the caching resource scheduling algorithm and strategy,and analyze and compare the performance of the proposed algorithms.By analyzing the repetitive transmission characteristics of hot files and the relationship among users,content providers and the operator,the caching resource scheduling algorithm is designed.And it achieves the purpose of improving user experience quality.In order to meet the stringent requirement of delay and improve the efficiency of the system resources,this dissertation will analyze and design the joint scheduling algorithm of computing resource,caching resource and communication resource.By analyzing the focus of performance requirements of each service,the joint resource scheduling algorithm is designed through combining the research results of communication resource and caching resource.So that this algorithm not only meets the different requirements of different business scenarios,but also improves the overall utility of the system resources.In summary,the computing resource,caching resource and communication resource joint scheduling strategy and algorithm base on network slicing are designed in this dissertation.While perfecting the basic theory of the network slicing,it has laid a solid foundation for the development of 5G and promoted the vigorous development of diverse business scenarios with differenti ated performance requirements.