Application-layer monitoring of QoE parameters for mobile YouTube video streaming in the field
Application-layer monitoring of QoE parameters for mobile YouTube video streaming in the field
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对现场移动 YouTube 视频流的 QoE 参数进行应用层监控
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
P. Tran
中科院分区：
文献类型：
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作者：
Michael Seufert;P. Casas;Florian Wamser;Nikolas Wehner;R. Schatz;P. Tran
YouTube视频流媒体是蜂窝网络中最受欢迎且要求最高的服务之一。因此，运营商关心由其网络递送的流传输的质量，并且想要监视终端用户的体验质量（QoE）。在这项工作中，我们进行了现场研究的移动的YouTube视频流，其中网络流参数和应用层流参数进行了监测，并提出了当前移动的YouTube流的特点。这两种方法的影响进行了调查，显示监控网络参数是不足以直接推断所得到的QoE。相比之下，可以从应用层监控获得的流传输参数显示出与主观体验的质量的高度相关性，并且因此更适合于QoE监控。
YouTube video streaming is one of the most popular and most demanding services in cellular networks. Thus, operators are concerned about the quality of the streaming delivered by their networks and would like to monitor the Quality of Experience (QoE) of the end users. In this work, we conduct a field study of mobile YouTube video streaming, in which both network flow parameters and application-layer streaming parameters were monitored, and present the characteristics of current mobile YouTube streaming. The impact of both approaches is investigated showing that monitoring network parameters is not sufficient to directly infer the resulting QoE. In contrast, the streaming parameters, which can be obtained from application-layer monitoring, show high correlations to the subjectively experienced quality, and thus, are better suited for QoE monitoring.