An FMI Compliant Co-Simulation Approach for NS-3 Network Simulator

The OSP project, which was started to build a digital twin in the marine environment, is a structure in which various objects are modeled and each model object is linked using FMI. This project is a structure where various simulators that support the dynamic characteristics of ships are linked and can operate as a single simulation. We added a network simulator to reflect the characteristics of the ship's navigation communication equipment in the marine environment. In this paper, we configure an NS3-based simulator to configure the network required for each marine communication equipment to communicate with each other. We provide a connection method using FMI between OSP and NS3. We also proposed a method to dynamically configure network simulator according to various simulation scenarios.