Informed Access Network Selection: The Benefits of Socket Intents for Web Performance
Informed Access Network Selection: The Benefits of Socket Intents for Web Performance
复制标题
知情接入网络选择：套接字意图对 Web 性能的好处
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
A. Feldmann
中科院分区：
文献类型：
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作者：
Theresa Enghardt;Philipp S. Tiesel;T. Zinner;A. Feldmann
当今的最终用户设备具有多个可用的接入网络，并且可以通过在接入网络之间分配流量来实现更好的应用程序性能。然而，考虑到不同的应用需求和网络性能特征，将应用流量匹配到最合适的接入网络或将它们捆绑起来并非易事。因此，我们提出了一种基于应用的接入网络选择方法（IANS）。根据Web资源的大小，我们选择在延迟和可用下游容量方面更好的接入网络。我们在套接字意图原型中实现 IANS，并评估其在各种网络条件下和各种网页加载方面的优势。 IANS 为网络条件不对称的场景和下行容量较低的场景提供最高的加速。在这里，与使用两个接入网络中较好的一个相比，IANS 将相关 Web 指标的中位数提高了 500 到 1000 毫秒，并且还可能优于 MPTCP。这证实了 IANS 比使用单个网络、在某些情况下甚至使用 MPTCP 更能提高应用程序性能。
Today’s end-user devices have multiple access networks available and can achieve better application performance by distributing traffic across access networks. However, matching application traffic to the most suitable access network or bundling them is non-trivial, given varying application needs and network performance characteristics. Therefore, we propose an application-informed approach for access network selection (IANS). Based on the size of a Web resource, we select the better access network in terms of latency and available downstream capacity. We implement IANS within our Socket Intents prototype and evaluate its benefits for Web page loads under a variety of network conditions and for various Web pages. IANS provides the highest speedups for scenarios with asymmetric network conditions and for scenarios with low downstream capacity. Here, IANS improves relevant Web metrics by between 500 and 1000 ms in the median, compared to using the better of the two access networks, and may also outperform MPTCP. This confirms that IANS improves application performance over using a single network and, in several scenarios, even using MPTCP.