Research On 5G Network Slice Resource Management Algorithm For Power Communication

Power communication network is an important part of power system.It carries the two-way transmission of massive information in power system.It is the lifeblood to maintain the safe,stable and automatic operation of power system.In recent years,with the development of power system infrastructure,many power services have different requirements for communication delay,rate and other indicators.In order to meet these differentiated requirements among services,the communication technology applied in power communication network also needs to be constantly innovated with the times.5G mobile communication technology has the characteristics of large bandwidth and low delay,and has high adaptability to the power communication network.After configuring the network slicing technology,it can build an exclusive virtual network for different power services to meet the needs of services.Therefore,this paper studies 5G power slice and its resource allocation in order to ensure the delay and other requirements of power business.The specific work is as follows:(1)Aiming at the real-time problem of power business,the time delay demand of5 G applied to power business is modeled and analyzed.Firstly,the characteristics of power service and the feasibility of 5G application are analyzed.Then,using the idea of section by section analysis,the end-to-end delay analysis model of 5G power slice and the fine analysis model of air interface delay are established,and the end-to-end delay of three typical services such as differential protection,accurate load regulation and video monitoring are accurately analyzed.The analysis results show that 5G power slice can meet the delay requirements of services,which provides an index reference for subsequent research.(2)According to the strict demand of power business,the network slice model of power scenario is analyzed and designed to guarantee it.Firstly,the differences between public network slice and industry slice are compared,and then the slice identification and service quality information are introduced and realized in the aspect of control information.Finally,facing the needs of power business,the power terminal model is constructed on the terminal side,a slice dynamic resource reservation algorithm is proposed and constructed on the access network slice,and the user plane routing model is constructed on the core network slice,The effectiveness of the model is realized and verified on 5G air simulator software,which provides an upper model for the simulation of resource allocation algorithm in the third part.(3)The existing user level resource allocation algorithm in access network slice has limitations when applied to 5G power scenario.A delay rate guarantee weighting algorithm is proposed.Aiming at the problem that it is difficult to measure whether a single index can guarantee the needs of different power services,the factors of time delay and rate guarantee degree are quantified and introduced;Aiming at the problems of power scenario business emergency,the emergency degree factor is quantified and introduced;According to the different requirements of power business,the weight factor is introduced to adjust the weight of delay and rate parameters.The simulation results show that the slicing model in this paper effectively ensures the power service delay and system resource utilization,and proposes the algorithm as the slicing supplement.At the same time,it ensures the power service delay,packet loss rate and rate,and has a strong isolation effect on the external load.