Drop the packets: using coarse-grained data to detect video performance issues

Drop the packets: using coarse-grained data to detect video performance issues
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丢弃数据包:使用粗粒度数据检测视频性能问题

DOI:
10.1145/3386367.3431294
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发表时间:
2020
期刊:
Proceedings of ACM Conext
影响因子:
--
通讯作者:
Ammar, Mostafa
Ammar, Mostafa
中科院分区:
--
文献类型:
--
作者:
Mangla, Tarun;Halepovic, Emir;Zegura, Ellen;Ammar, Mostafa

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了解最终用户视频体验质量(QoE)对于互联网服务提供商(ISP)非常重要。现有的工作提出了使用网络测量数据来估计视频QoE的机制。这些机制中的大多数都假设可以访问数据包级别的跟踪,即网络中可用的最详细的数据。然而,在网络范围内收集数据包级跟踪可能具有挑战性。因此,我们提出这样一个问题:"使用轻量级、随时可用但粒度较粗的网络数据来估计视频QoE是否可行?“我们特别考虑了传输层安全(TLS)事务形式的数据,这些数据可以使用标准代理收集,并提出了一种基于机器学习的方法来估计QoE。我们对三种流行的流媒体服务的评估表明,使用TLS事务的估计准确率很高(高达72%),在检测低QoE(低视频质量或高重新缓冲)实例时的召回率高达85%。与数据包跟踪相比,估计准确度(召回率)低7%(9%),但计算开销低60倍。
Understanding end-user video Quality of Experience (QoE) is important for Internet Service Providers (ISPs). Existing work presents mechanisms that use network measurement data to estimate video QoE. Most of these mechanisms assume access to packet-level traces, the most-detailed data available from the network. However, collecting packet-level traces can be challenging at a network-wide scale. Therefore, we ask:"Is it feasible to estimate video QoE with lightweight, readily-available, but coarse-grained network data?" We specifically consider data in the form of Transport Layer Security (TLS) transactions that can be collected using a standard proxy and present a machine learning-based methodology to estimate QoE. Our evaluation with three popular streaming services shows that the estimation accuracy using TLS transactions is high (up to 72%) with up to 85% recall in detectinglowQoE (lowvideo quality orhighre-buffering) instances. Compared to packet traces, the estimation accuracy (recall) is 7% (9%) lower but has up to 60 times lower computation overhead.
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