移动通信2024，Vol.48Issue(9)：147-152,6.DOI:10.3969/j.issn.1006-1010.20240908-0001
巨型LEO星座的时不变拓扑与航点路由设计
Time-Invariant Topology and Waypoint Routing in Mega LEO Constellations
摘要
Abstract
LEO satellite networks are a critical component of 6G space-ground integrated communication,offering advantages such as low cost and wide coverage,but also presenting technical challenges like high dynamics and frequent handovers.Although satellite motion follows predictable patterns and the time-varying nature of constellations is regular,the large scale of space-based networks far exceeds that of terrestrial networks,making traditional Internet routing technologies inadequate.By applying snapshot transformations and virtual node methods,using satellites and inter-satellite links as reference frames,a time-invariant topology for mega LEO constellations is derived through a three-step position transformation and polar region contraction process.The suitability of a complete grid topology is demonstrated,and a waypoint routing mechanism is employed to design a local satellite fixed-routing algorithm.The isomorphism between grid constellations and cyclic graphs is also established,providing insights for further structural optimization.关键词
LEO星座/天基网络/参照系/格网拓扑/航点路由Key words
LEO constellations/space-based networks/reference frame/grid topology/waypoint routing分类
信息技术与安全科学引用本文复制引用
李公顺,陈睿,吴炜,王文鼐..巨型LEO星座的时不变拓扑与航点路由设计[J].移动通信,2024,48(9):147-152,6.基金项目
江苏省研究生科研与实践创新计划资助项目(KYCX21_0724) （KYCX21_0724）
