NFV-based Time Synchronization Method for Power 5G Integrated Communication Networks

The integration of multiple wireless communication systems based on 5G is an important development trend for achieving comprehensive coverage of communication networks in power systems. However, current time synchronization in the power system cannot meet the service requirements of high reliability and low latency in 5G integrated communication networks, which is characterized by wireless link and dynamize topology. In this paper, a time synchronization architecture based on 5G-MEC and integrated wireless self-organized networks is proposed to meet the time synchronization requirements of 5G integrated communication networks. Also, by constructing synchronous message passing and error compensation as virtual network services, a VNF deployment method that considers resource constraints, latency requirements, and wireless self-organized network topology is designed. Finally, in order to solve the problem of delay jitter, a time synchronization error compensation method based on diffusion Kalman filter is proposed. Simulation results show that the method proposed can effectively improve the number of synchronized service users and success rate, reduce delay jitter, and improve synchronous accuracy of power services.