Network Slicing in LEO Satellite Network

To solve the problems of LEO (Low Earth Orbit) satellite network, such as insufficient flexibility and low resource utilization, an architecture using network slicing technology is proposed. Then a prototype system based on the Docker platform and DTN (Delay Tolerant Network) is implemented, providing IMS (IP Multimedia Subsystem) network slice, Internet of Things network slice and web network slice. Tested by prototype system, the results show that each network slice can independently provide relevant service without affecting each other, and can be allocated network resources flexibly according to the performance requirements of the services. The architecture can effectively improve the flexibility of the core network of LEO satellite network.