物联网学报2025，Vol.9Issue(1)：13-26,14.DOI:10.11959/j.issn.2096-3750.2025.00479
面向差异化QoS需求的低轨算力卫星星座设计
LEO computing satellite constellation design for heterogeneous QoS requirements
摘要
Abstract
The rapidly increasing number of Internet of things devices poses significant challenges to the service capabili-ties of terrestrial networks.Ultra-dense low earth orbit satellite constellations have emerged as a promising solution to ad-dress the limited coverage area of terrestrial networks and the insufficient computing capabilities of user terminals.By es-tablishing a satellite-to-terrestrial connection model,the average computational resources and backhaul capacity available to ground users were analyzed and a multi-objective optimization problem for designing ultra-dense LEO constellations was modelled,aiming to minimize the total number of satellites while meeting the heterogeneous quality of service(QoS)requirements for user task offloading.A two-stage constellation design algorithm was proposed,which firstly optimized the resource allocation strategy of computational satellites and then determined the constellation parameters under optimal QoS conditions.Simulation results validate the accuracy of the theoretical model and analyze the impact of orbital alti-tude,task volume,and coverage requirements on constellation design.Compared with the Kuiper,OneWeb,and SpaceX constellations,the proposed constellation achieved an average coverage rate increase of 29.52%,48.73%,and 34.82%,re-spectively,with the same number of satellites.关键词
卫星物联网/低轨卫星星座/算力卫星网络/多目标优化Key words
satellite IoT/LEO satellite constellation/satellite-based computing network/multi-objective optimization分类
电子信息工程引用本文复制引用
彭煜明,孙仪静,邸博雅..面向差异化QoS需求的低轨算力卫星星座设计[J].物联网学报,2025,9(1):13-26,14.基金项目
国家自然科学基金资助项目(No.62322101) （No.62322101）
广东省基础与应用基础研究基金项目(No.2023B0303000019)The National Natural Science Foundation of China(No.62322101),Guangdong Basic and Applied Basic Re-search Foundation(No.2023B0303000019) （No.2023B0303000019）
