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Quality of experience‐based optimization of satellite Internet‐at‐sea using WAN accelerators
International Journal of Satellite Communications and Networking ( IF 1.7 ) Pub Date : 2020-07-30 , DOI: 10.1002/sat.1366
Asad Arfeen 1 , Riaz Uddin 2
Affiliation  

To support on‐board satellite Internet connectivity at sea, the shipping vessels rely on various types of WAN accelerator devices. These devices provide bandwidth optimization over high‐latency and low‐bandwidth links by real‐time data compression and transport layer protocol‐specific optimizations. These types of devices are often licensed based on the number of concurrent transport layer flows that can be optimized, which requires dimensioning the equipment before deployment. If the number of transport layer flows increases beyond the device's specifications, then such flows will simply be passed through without any optimization. The limitation to scaling would be further aggravated by emerging user applications that are not only bandwidth hungry but also initiate more transport layer flows. The purpose of this article is to study how optimizations can be carried out at client side so as to improve user quality of experience of Internet‐at‐sea without further investing in expensive WAN accelerator devices and changing operational network. In this article, we present a statistical analysis of various web browsers' traffic and suggest techniques to reduce the number of transport layer flows originating from client side. Furthermore, besides an extensive analysis on satellite Internet traffic optimization, technical suggestions are also presented to achieve better quality of experience for the users of Internet‐at‐sea. In addition, the prospective impacts of new services like DNS‐over‐https, Quick UDP over Internet Connection (QUIC), and http/2 on WAN acceleration has also been discussed.

中文翻译:

使用WAN加速器根据经验优化卫星海上互联网的质量

为了支持海上的机载卫星Internet连接,运输船依靠各种类型的WAN加速器设备。这些设备通过实时数据压缩和特定于传输层协议的优化,在高延迟和低带宽链路上提供了带宽优化。这些类型的设备通常基于可以优化的并发传输层流的数量来获得许可,这需要在部署之前确定设备的尺寸。如果传输层流的数量增加到超出设备规格的水平,那么这些流将简单地通过而无需任何优化。新兴的用户应用程序不仅会占用带宽,而且还会启动更多的传输层流,因此将进一步加剧缩放的限制。本文的目的是研究如何在客户端进行优化,以提高用户的海上互联网体验质量,而无需进一步投资购买昂贵的WAN加速器设备和更改运营网络。在本文中,我们对各种Web浏览器的流量进行了统计分析,并提出了减少来自客户端的传输层流数量的技术建议。此外,除了对卫星互联网流量优化进行广泛分析之外,还提出了一些技术建议,以为海上互联网用户提供更好的体验质量。此外,还讨论了新服务的预期影响,例如DNS-over-https,Internet连接上的快速UDP(QUIC)和HTTP / 2对WAN加速的影响。
更新日期:2020-10-05
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