Simulation Technology for Large-scale Satellite Cloud Network with the Integration of Digital and Reality

Existing satellite network simulations focus on system assessments of network layer functions and performance such as communication access and network routing, which are insufficient to meet the simulation verification requirements in scenarios where communication, networking, and computing functions are integrated. In view of the above problems, this paper proposed a large-scale satellite cloud network simulation method that integrated digital and physical domains and cloud-network convergence. By utilized virtualization technology to constructed nodes with integrated communication, networking, and computed functions, high-precision simulation of dynamic and time-variant topologies of satellite networks was achieved through topological connection relationships. Interaction between the digital space and the physical entity space was realized through a digital-physical interface, ultimately constructing a large-scale satellite cloud network that integrated the digital and physical domains. This Approach provided effective support for the simulation and verification of future satellite networks.