关键词: 中低轨卫星 星座网络 星间链路 动态特性 路由计算

Abstract:

Building networks with inter-satellite links （ISL） in the MEO/LEO satellite constellation is becoming a major trend of broadband satellite network.   In order to perform routing in a satellite network, the dynamic characteristics of network topology must be considered because of the ISL＇s changes cau  used by the continuous movement of satellites. By introducing the geometric parameters of ISL, the characteristics of network topology, especially of IS L, are studied in this paper from the viewpoint of network. The influence on the changes of the ISL of different constellations is analyzed. Finally we  analyse the influence of the changes on the routing computation period by considering the routing in the satellite network.

Key words: （MEO/LEO satellite, constellation network, ISL, dynamic characteristics, routing computation）