QUICker or not? -an Empirical Analysis of QUIC vs TCP for Video Streaming QoE Provisioning
QUICker or not? -an Empirical Analysis of QUIC vs TCP for Video Streaming QoE Provisioning
复制标题
快还是不快？
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
P. Casas
中科院分区：
文献类型：
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作者：
Michael Seufert;R. Schatz;Nikolas Wehner;P. Casas
Google引入QUIC（快速UDP互联网连接）传输协议旨在与主流的传输控制协议（TCP）相比，提高Web服务的体验质量（QoE）。如今，QUIC已成为Google Chrome浏览器和Google服务器之间通信的默认协议，并且在互联网流量中所占的份额越来越大。这项工作调查了QUIC承诺的QoE好处是否确实对最终用户来说是显而易见的。对两个移动的和两个固定接入网络中的YouTube视频流进行了测量研究，其中定义的一组视频以随机顺序用QUIC和TCP背靠背地流传输。对视频流的QoE因素（如初始延迟、视频的视觉质量和停顿）进行统计比较，以发现QUIC上的流与TCP上的流之间的显著差异。令人惊讶的是，没有发现任何证据表明QUIC在YouTube流媒体环境中相对于TCP有任何Qoe改进。
The introduction of the QUIC (Quick UDP Internet Connections) transport protocol by Google aimed to improve the Quality of Experience (QoE) with web services compared to the prevailing Transport Control Protocol (TCP). Nowadays, QUIC has become the default protocol to communicate between the Google Chrome browser and Google servers and accounts for an increasing share of the Internet traffic. This work investigates whether the promised QoE benefits of QUIC are indeed noticeable for end users or not. A measurement study was conducted for YouTube video streaming in two mobile and two fixed access networks, in which a defined set of videos was streamed back-to-back with QUIC and TCP in randomized order. QoE factors of video streaming (such as initial delay, the visual quality of the video, and stalling) were compared statistically to find significant differences between the streaming over QUIC and the streaming over TCP. Surprisingly, no evidence for any QoE improvement of QUIC over TCP in the context of YouTube streaming could be found.