Research On Spectrum Aggregation And Resource Allocation Method For Power Wireless Service

With the rapid development of smart grid,the types and number of power wireless services are increasing.However,there are still some problems in smart grid,such as resource scarcity,service communication quality can not be guaranteed.One of the most important factors is that the traditional resource scheduling algorithm is not enough to meet the communication requirements of power wireless services.Therefore,it is necessary to improve the existing resource allocation method combined with the smart grid environment to meet the needs of terminal devices,improve resource utilization and improve the quality of network transmission.This paper uses carrier aggregation technology to solve the shortage of spectrum resources in smart grid.In this paper,a power wireless communication resource allocation model is established according to the normalized function of user throughput,fairness criteria,minimum user rate requirements and user QoS requirements.The throughput normalization function guarantees the fairness of cell edge users.By using the joint resource scheduling algorithm to solve the above problems,the security performance and resource utilization of smart grid communication network can be effectively improved.In this paper,frequency multiplexing technology is used to achieve the effective separation of data between multi cell users and reduce the inter cell interference.The maximum energy efficiency of the system can be obtained under the constraints of service priority of power users,power and rate requirements of edge users.According to the model,the problem is divided into two parts to solve resource scheduling and power allocation.Firstly,the dynamic allocation algorithm is used to allocate resources to the users in the cell,and then the power is allocated according to the iterative water injection algorithm,so as to find the optimal solution of resource scheduling.Considering the interference mechanism,this paper uses dynamic allocation algorithm to allocate data resources of multi cell users,which reduces the average delay of network transmission and improves the quality of communication.Through simulation and comparative analysis,the algorithm designed in this paper can provide sufficient resource allocation for high QoS services in the case of traffic congestion,It balances the relationship between fairness and throughput,improves the service transmission performance,and proves the effectiveness of the algorithm.