基于QoE的移动WebRTC传输优化策略

发布时间：2018-03-05 19:13

本文选题：WebRTC　切入点：移动网络　出处：《小型微型计算机系统》2017年07期 　论文类型：期刊论文

【摘要】：WebRTC是近年来兴起的一种基于浏览器的实时流媒体传输技术,具有无需安装插件,开发快,跨平台等优点,但目前在移动网络环境下的性能表现不佳,表现为网络延时和丢包率高,容易发生网络拥塞造成视频卡顿,降低用户的体验质量.本文针对此问题,通过对原RRTCC算法进行改进,提出一种基于移动网络使用场景和Qo E分析的实时流媒体数据传输策略(MRSTM).该策略通过在RTP数据接收端进行实时链路质量估计与信令发送,在RTP数据发送端进行信令消息与用户使用场景动态分析的发送速率控制,减少延时和丢包率,并结合TCP友好算法实现与TCP流的传输平衡.实验结果表明,MRSTM策略能够在各种移动网络使用环境下,有效降低网络延时和丢包率,增加视频流畅度,提高了用户的QoE体验.
[Abstract]:WebRTC is a browser-based real-time streaming media transmission technology developed in recent years. It has the advantages of no installation of plug-in, fast development and cross-platform, but its performance in mobile network environment is not good. It is shown that the network delay and packet loss rate are high, and the network congestion can easily lead to video congestion, which reduces the quality of the user's experience. In this paper, the original RRTCC algorithm is improved to solve this problem. This paper presents a real-time streaming media data transmission strategy based on mobile network usage scenario and QoS analysis, which is based on real-time link quality estimation and signaling transmission at the RTP data receiver. In the RTP data sender, signaling message and the user use scene dynamic analysis of the transmission rate control, reduce delay and packet loss rate, The experimental results show that the proposed scheme can effectively reduce the network delay and packet loss rate, increase the video fluency and improve the user's QoE experience in various mobile network environments.
【作者单位】：广西大学计算机与电子信息学院;
【基金】：国家自然科学基金项目(61363067,61462007)资助广西高校多媒体通信与信息处理重点实验室(广西大学)资助
【分类号】：TN919.8

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