In the next generation network, the satellite network will play a fundamental role, in overcoming the limitation of the terrestrial network. Nonetheless, the satellite-terrestrial network integration presents a number of problems due to the time-variant topology of the first. One of the most important is the routing process of such networks. Many solutions have been proposed in the literature since the 1990s, and in recent years, the development of modern technologies such as Software Defined Networking (SDN) led to new possible approaches to the routing of satellite network. In this paper, a graph-based, source routing algorithm is presented. The algorithm exploits reliability and flexibility of the SDN architecture and the simplicity of source routing to tackle the dynamic topology of the network, providing rerouting solutions when necessary.

翻译：在下一代网络中，卫星网络将在克服地面网络局限性方面发挥基础性作用。然而，由于卫星网络拓扑结构的时变性，星地网络融合仍面临诸多挑战，其中最关键的问题之一便是此类网络的路由机制。自20世纪90年代以来，学界已提出多种解决方案。近年来，随着软件定义网络（SDN）等现代技术的发展，卫星网络路由研究涌现出新的可能路径。本文提出一种基于图论的源路由算法，该算法充分发挥SDN架构的可靠性与灵活性，结合源路由的简洁性，有效应对网络拓扑的动态变化，并在必要时提供重路由解决方案。