论文标题
LEO卫星网络的拓扑虚拟化和动态屏蔽方法
Topology Virtualization and Dynamics Shielding Method for LEO Satellite Networks
论文作者
论文摘要
虚拟节点(VN)方法被广泛采用以处理卫星网络拓扑动态。但是,当考虑地球旋转和平面间差异时,常规的VN方法不足。提出了一种基于天体划分的改进的VN方法,以克服常规方法的缺陷。得出了优化的卫星间链接连接模式,以实现最大可用链接。最佳VN分裂解决方案和寻址方案旨在生成几乎静态的虚拟网络,并求解由平面间相位差引起的异步开关。比较结果证明了提出的方法的优势。
Virtual Node (VN) method is widely adopted to handle satellite network topological dynamics. However, conventional VN method is insufficient when earth rotation and inter-plane phase difference are considered. An improved VN method based on Celestial Sphere Division is proposed to overcome the defects of the conventional method. An optimized inter-satellite link connecting mode is derived to achieve maximal available links. The optimal VN division solution and addressing scheme are designed to generate a nearly static virtual network and solve the asynchronous switches caused by inter-plane phase difference. Comparison results demonstrate the advantages of proposed method.