移动通信2024，Vol.48Issue(9)：40-49,10.DOI:10.3969/j.issn.1006-1010.20240726-0002
大规模低轨卫星互联网传输层关键技术研究与展望
Research and Prospects of Key Technologies on Transport Layer for Large-Scale LEO Satellite Networks
摘要
Abstract
With the development of satellite technology,Low-Earth Orbit(LEO)satellite networks are being increasingly adopted by various organizations,such as OneWeb and SpaceX,due to their advantages of low cost,high capacity and low latency.The LEO satellite networks not only can provide global coverage,but also can achieve lower latency in ultra-long-distance data transmission compared to terrestrial networks.As the satellite constellation technology matures,large-scale LEO satellite networks are expected to provide seamless high-speed Internet access for global users.In the large-scale LEO satellite networks,the transport layer protocol is crucial for providing highly reliable and low-latency communication services.However,the characteristics of large-scale LEO satellite networks,such as high error rate,frequent satellite-ground handovers,and dynamic network topology changes,make it difficult for traditional terrestrial network transport protocols to meet the quality of service requirements for large-scale LEO satellite networks.Therefore,it is imperative to develop new transport protocol mechanisms suitable for large-scale LEO satellite networks.In this paper,we explore the development and challenges of key transport layer technologies for large-scale LEO satellite networks,covering aspects such as transport layer protocols,congestion control algorithms,coding techniques and multipath transport protocols in response to new characteristics and transmission services requirements in large-scale LEO satellite networks.It analyzes the main challenges for transmission services in large-scale LEO satellite networks.This paper is to provide development ideas and technical references for the researches of key transport layer technologies in large-scale LEO satellite internet.关键词
大规模低轨卫星网络/传输层协议/拥塞控制/多路径Key words
large-scale LEO satellite networks/transport layer protocol/congestion control/multipath分类
信息技术与安全科学引用本文复制引用
张孟旸,马婷,刘晓宇,张子天,周海波..大规模低轨卫星互联网传输层关键技术研究与展望[J].移动通信,2024,48(9):40-49,10.基金项目
国家重点研发计划资助项目"面向天地一体化大规模星座超密组网系统设计及性能评估技术"(2020YFB1806104) （2020YFB1806104）
华为联合创新横向项目"大规模高动态卫星组网协议研究与验证技术" （）
