基于QUIC的实时通信优化研究与应用  

Research and Application of Real-time Communication Optimization Based on QUIC

作　　者：于波 李炫杉[1,2] 王卫 徐福龙 YU Bo;LI Xuan-shan;WANG Wei;XU Fu-long(University of Chinese Academy of Sciences,Beijing 100049,China;Shenyang Institute of Computing Technology,Chinese Academy of Sciences,Shenyang 110168,China;School of Computer Science and Engineering,Northeastern University,Shenyang 110169,China)

机构地区：[1]中国科学院大学,北京100049 [2]中国科学院沈阳计算技术研究所,沈阳110168 [3]东北大学计算机科学与工程学院,沈阳110169

出　　处：《小型微型计算机系统》2021年第8期1753-1757,共5页Journal of Chinese Computer Systems

基　　金：国家重点研究开发项目(2018YFB1702000)资助;国家自然科学基金项目(61671141)资助;中央高校基本科研业务费专项资金(N2016014)资助;辽宁省自然科学基金项目(20180551007)资助。

摘　　要：实时通信场景主要是在对等连接的情况下进行音视频文件的传输,需要有低时延、高带宽的网络环境.QUIC协议在传输层有着良好的表现,其快速、稳定、安全的特点使其有着广阔的应用前景,但直接将其应用在实时通信场景下也存在着一些缺点.本文通过分析实时通信技术、开源框架WebRTC和传输层协议QUIC的现状,针对QUIC应用在实时通信这一场景下优点和缺点,对QUIC协议进行了改进,使QUIC更适应实时通信场景,并对CUBIC拥塞控制算法进行自适应优化,最后将改进后的QUIC协议进行应用和验证.The real-time communication scenario is mainly the transmission of audio and video files in the case of peer-to-peer connection,which requires a network environment with low delay and high bandwidth.QUIC protocol has a good performance in the transport layer,and its fast,stable and secure features allow us to see a broad application prospect,but directly applied to the real-time communication scene also has some disadvantages.By analyzing the status quo of real-time communication technology,open source framework WebRTC and transport layer protocol QUIC,and aiming at the advantages and disadvantages of QUIC application in real-time communication scenario,this paper proposes an improvement of QUIC protocol to make it more suitable for real-time communication scenarios,and optimizes the congestion control algorithm,finally,applies and verifies the improved QUIC protocol.

关 键 词：QUIC 实时通信 RTC 传输层优化 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]