Reusability, Reconfigurability and Efficiency Optimization of Satellite Network Modeling and Simulation

Model-based approach with reusable mechanisms can serve as an effective way for complex system architecture design. Stakeholder needs should be satisfied while product and architecture design need to be consistent with user requirements in all stages during the whole product lifecycle. In this paper, satellite network as an example of complex system is modeled in a reusable, reconfigurable and efficient manner using the system modeling language (SysML) together with pattern viewpoints and simulation constructs. Based upon abstract syntax described using metamodels and a set of profiles, concept reusability is established for the specific domain. Additionally a reusable modeling framework is developed with tailored design patterns and multiple viewpoints. Analysis metamodel, profile and interface are further presented to preserve reusability during iterations among multiple optimization rounds. A novel satellite network simulation model is formulated and multi-objective optimization is solved by transformation under practical application scenarios. A set of metrics are designed to assess and validate the models. Results show that the proposed reusable model has viewpoint coverage of more than 80 percent compared to a half for the baseline OOSEM model. The proposed model thus covers the pattern viewpoints and ontologies in a wider and more frequent way and is more efficient. Design choices made based on the model can be incorporated into this mechanism which is extensible along the system lifespan.