Routing strategy for satellite-based networks with a hierarchical space grid architecture

Routing algorithms and the hierarchical three-dimensional grid architecture of satellite-based networks (SN) are presented. The performance of the proposed architecture and the routing algorithms are analyzed. Simulation of the routing algorithm based on the extended OPNET platform is performed. It is shown in simulation that the proposed three-dimensional satellite-based network architecture outperforms other SN architectures, and the corresponding routing algorithms have superior performances in simplicity, expandability, robustness and high-speed convergence. The full protocols and the related algorithms of routing and switching for the satellite-based networks then can be proposed and verified on an OPNET platform.