摘要
以新兴低轨巨型星座网络为研究对象,概述了系统基本架构与工作模式,总结了新兴巨型星座网络的基本特征。根据系统架构,从卫星网络拓扑动态性管理、星地链路切换策略、路由算法设计、地面信关站布局优化设计以及网络仿真与性能评估5个方面系统梳理了各关键技术的主要技术路线和研究进展,尤其是近期巨型星座的相关研究进展。重点分析了低轨巨型星座中星座规模和复杂度扩增对组网关键技术的挑战,以及现有的各类解决方法在巨型星座宽带网络场景下的适用性。最后对未来巨型星座网络的相关研究方向进行了展望。
The emerging low earth orbit(LEO)mega-constellation network(MCN)represented by Starlink and OneWeb were studied.The system architecture and basic working modes were introduced,and the main features of the emerging broadband MCN were summarized.Based on the system architecture of MCN,the methodology and research progress of five key technologies were investigated and summarized,including network topology dynamics management,space-ground handover scheme,high-efficiency routing algorithm design,gateway placement design,network simulation and performance evaluation.The focus was on recent mega-constellation-related studies.The challenges caused by the large scale and complexity of MCN and the applicability of existing techniques and solutions in MCN were analyzed.
作者
陈全
杨磊
郭剑鸣
李星辰
赵勇
陈小前
CHEN Quan;YANG Lei;GUO Jianming;LI Xingchen;ZHAO Yong;CHEN Xiaoqian(College of Aerospace Science and Engineering,National University of Defense Technology,Changsha 410073,China;Science and Technology on Complex Aircraft System Simulation Laboratory,Beijing 100094,China;National Innovation Institute of Defense Technology,Chinese Academy of Military Science,Beijing 100071,China)
出处
《通信学报》
EI
CSCD
北大核心
2022年第5期177-189,共13页
Journal on Communications
基金
国家自然科学基金资助项目(No.11725211,No.12002383)
国防科技大学学校科研计划基金资助项目(No.ZK22-02)。
关键词
低轨巨型星座
宽带卫星网络
星链
卫星网络路由
信关站布局
卫星网络仿真
low earth orbit mega-constellation
broadband satellite network
Starlink
satellite network routing
gateway placement
satellite network simulation
