【摘要】 该文讨论了具有星际链路的非静止轨道玫瑰星座中的路由与切换,在深入分析其网络拓扑变化特性的基础上,提出了一种新的路由策略—循环刷新路由策略。随后,将切换过程与路由有机结合,提出了最小跳数切换策略。计算仿真结果表明,与已有的策略相比,该文提出的策略能够获得较低的传播延时和较小的切换频率,具有很好的实用价值。更多还原

【Abstract】 This paper discusses the routing and handover issue in the NGSO rosette satellite constellations equipped with Inter-Satellite Links (ISL). Based on the variation regularity of the rosette constellation topology, a novel routing strategy named circularly refreshing routing strategy is proposed. Then, by appropriately combining routing and handover procedure, the Minimal-Hop Handover (MHH) strategy is proposed.Compared with other previous strategies, the simulation results show that MHH strategy performs better with less propagation delay and lower handover frequency, so it has a good practical value.更多还原