With the development of the massive satellite constellation and the on-orbit laser-based communication equipment, wavelength routing optical satellite networks (WROSN) becomes a potential solution for on-orbit, high-capacity, and high-speed communication. Since the inter-satellite links (ISLs) are time-varying, one of the fundamental considerations in the construction of the WROSN is assigning limited laser communication terminals for each satellite to establish ISLs with the visible satellites. Therefore, we propose a links assignment scheme (LAS) based on the potential edges importance matrix (PEIM) algorithm to construct a temporarily stable topology for a dual-layer WROSN (DWROSN). The simulation results showed that the LAS based on the PEIM algorithm diminishes the long-hops route path, reduces the average node-to-node distance, and saves the wavelength demand of the DWROSN. The node pair connectivity and wavelength demand in the DWROSN is a trade-off problem. The research in this paper also brings a novel method for optimizing the route paths and reducing the wavelength demand of wavelength routing optical satellite networks, that is through designing the topology with a links assignment algorithm.

中文翻译：

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双层波长路由光卫星网络中基于潜在边重要性的链路分配方案


随着海量卫星星座和在轨激光通信设备的发展，波长路由光学卫星网络（WROSN）成为在轨、大容量、高速通信的潜在解决方案。由于星间链路（ISL）是时变的，WROSN建设的基本考虑因素之一是为每颗卫星分配有限的激光通信终端，与可见卫星建立ISL。因此，我们提出了一种基于潜在边重要性矩阵（PEIM）算法的链路分配方案（LAS），为双层WROSN（DWROSN）构建临时稳定的拓扑。仿真结果表明，基于PEIM算法的LAS减少了长跳路由路径，降低了平均节点间距离，节省了DWROSN的波长需求。 DWROSN 中的节点对连接性和波长需求是一个权衡问题。本文的研究还提出了一种优化路由路径和减少波长路由光卫星网络波长需求的新方法，即通过链路分配算法设计拓扑。