移动通信2024，Vol.48Issue(9)：71-79,101,10.DOI:10.3969/j.issn.1006-1010.20240908-0002
基于虚拟星座的卫星网络切片与路由策略研究
Research on Network Slicing and Routing Strategy of Satellite Networks Based on Virtual Constellations
摘要
Abstract
Existing mega-scale satellite networks are characterized by ultra-dense nodes,highly dynamic topology and frequent inter-satellite handover,which pose challenges to guaranteeing the QoS(Quality of Service)of carried services.To address the problem,we propose a topology control strategy based on virtual constellations.By abstracting the relative position relationships of satellites,we construct a full-coverage static virtual constellation network,which throws light on managing the dynamic topology and simplifying the inter-satellite handover.On this basis,we propose a virtual network slicing construction scheme tailored for different service types,aiming to realize the on-demand allocation and customized management of network resources.Based on the virtual paths in the sliced network,we implement an improved dynamic mapping strategy to plan the physical inter-satellite routing paths,ensuring the end-to-end QoS requirements of diversified services.Extensive simulation results indicate that compared to other routing strategies based on virtual node or virtual topology,the proposed algorithm significantly improves the solving time,end-to-end delay and packet loss rate,and shows better stability and balance in the face of massive traffic.关键词
虚拟星座/网络切片/动态映射/服务质量保证Key words
virtual constellations/network slicing/dynamic mapping/Quality of Service分类
信息技术与安全科学引用本文复制引用
王登昊,蒋佳亦,王俊涵,许都,章小宁..基于虚拟星座的卫星网络切片与路由策略研究[J].移动通信,2024,48(9):71-79,101,10.基金项目
国家自然科学基金项目"面向多维异构特性的地理分布式机器学习资源调度机制研究","类生物免疫机制的网络安全防护理论与方法","基于多智能体协同学习的网络资源管控机制研究"(62171085,U20A20156,62001087) （62171085,U20A20156,62001087）
