卫星互联网路由技术现状及展望  

Current status and future prospects of routing technologies for satellite Internet

作　　者：朱立东[1] 张勇 贾高一 ZHU Lidong;ZHANG Yong;JIA Gaoyi(National Key Laboratory of Science and Technology on Communication,University of Electronic Science and Technology of China,Chengdu 611731,China)

机构地区：[1]电子科技大学通信抗干扰技术国家级重点实验室,四川成都611731

出　　处：《通信学报》2021年第8期33-42,共10页Journal on Communications

基　　金：国家重点研发计划基金资助项目(No.2019YFB1803102);国家自然科学基金资助项目(No.61871422)。

摘　　要：卫星互联网作为空间信息传输网络,具备广域覆盖、可靠传输的特点,是重要的战略基础设施。信息的全球可达及空间资源的高效利用对路由技术提出了要求,因此对卫星互联网路由技术进行了详细阐述。由于路由策略受系统架构的影响,首先对单层、多层卫星星座体系下的路由技术分别进行了综述;其次考虑路由策略也往往涉及优化问题,因此从时延、带宽、数据分组丢失率、稳健性及资源利用等方面分别对已有研究进行了回顾和介绍;最后对进一步的研究方向进行了展望。As a space communication network for information delivery,satellite Internet has the characteristics of wide-area coverage and reliability,which makes it an important strategic infrastructure.In satellite Internet,the routing technologies were necessary for the global accessibility of information and the utilization of space resources,thus re-viewing the routing technologies for satellite Internet was focused on.Considering that the routing strategy was based on system architecture,firstly,the routing technologies for single-layer and multi-layer satellite constellation systems were reviewed respectively.In addition,routing strategies often involved optimization issues,therefore,the existing research work from the perspectives of delay,bandwidth,packet loss rate,robustness,and the resource utilization was also classi-fied and reviewed.Finally,the further research directions were recommended.

关 键 词：卫星互联网 卫星通信 空间网络 路由 卫星星座 

分 类 号：TN92[电子电信—通信与信息系统]