QUIC协议在卫星互联网中的应用研究

Research on the Application of QUIC Protocol in Satellite Internet

随着移动互联网逐步向万物互联的6G迈进,构建天空地一体化融合网络成为未来网络发展的必然方向。卫星互联网具有高、广、远的优势,无疑是6G网络不可或缺组成部分。传输控制协议是卫星互联网的关键技术之一,也是实现端到端高效传输的关键。QUIC(Quick UDP Internet Connection)是为应对传统TCP协议的诸多不足而提出的新型传输协议,一经提出就引起了学术界和工业界广泛关注。简要介绍卫星互联网组成结构的基础上,梳理空间环境对传统TCP议带来的长时延、高误码、高抖动以及移动性等诸多挑战,分析QUIC的核心机理、关键优势以及对卫星互联网的适应性,最后通过仿真结果验证了QUIC协议对空间环境的适应性,以期为其推广应用提供有价值的参考。

With the mobile Internet gradually moving towards 6G,the construction of sky earth integrated network has become the inevitable direction of future network.Satellite Internet has the advantages of high,wide and far,and will undoubtedly be an indispensable part of 6G.Transmission control protocol is one of the key technologies of Satellite Internet,and it is also the key to realize end-to-end efficient transmission.QUIC(quick UDP Internet connection)protocol is a new proposed transmission protocol to deal with shortcomings of TCP protocol,which has attracted extensive attention in academia and industry.Based on brief introduction of the structure of Satellite Internet,the challenges brought by space environment are combed to traditional TCP/IP protocol,such as but not limited,long delay,high bit error,high jitter and mobility,which analyzes the core mechanism and QUIC’s advantages to Satellite Internet.Finally,simulation results verify the adaptability of QUIC to space environment.It is expected to provide a valuable reference for the popularization and application of QUIC.