D-LiTE-ful:用于LTE演示中支持sdn的ISP卸载的DASH QoE评估平台

Proceedings of the Tenth ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation, and Characterization Pub Date : 2016-10-03 DOI:10.1145/2980159.2980175

Jason J. Quinlan, A. Reviakin, A. Khalid, K. Ramakrishnan, C. Sreenan

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引用次数: 2

摘要

在这个演示中，我们扩展了我们最近的工作——“D-LiTE:一个在模拟LTE网络上评估DASH性能的平台”。使用D-LiTE，我们通过模拟的NS3-LTE空中接口实时地在真实的物理客户端和Apache2服务器之间传输实际的DASH内容。我们增强了我们的平台，包括支持软件定义网络(SDN)的回程和连接到回程的支持SDN的WIFI路由器。与大多数ISP网络中的数据卸载类似，通过D-LiTE-ful，我们演示了如何将视频流分发到本地WIFI网络，不仅可以为移动到WIFI热点的客户端提高可实现的体验质量(QoE)，还可以为LTE网络上的剩余客户端提高体验质量。基于“全景用户界面”(提供LTE和客户端参数化机制，以及查看其交互输出的方法)和“SDN用户界面”(提供分组级别信息并说明回程中的路由行为)的反馈，我们观察到网络条件和客户端QoE的实时变化。该演示展示了支持sdn的多面ISP网络如何通过提供本地缓存、TCP流临时重路由和集中控制的手段，在LTE和WIFI网络之间提供动态卸载。

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D-LiTE-ful: an evaluation platform for DASH QoE for SDN-enabled ISP offloading in LTE: demo

In this demonstration we extend our recent work - "D-LiTE: A platform for evaluating DASH performance over a simulated LTE network". With D-LiTE we stream actual DASH content between real physical clients and an Apache2 server, over a simulated NS3-LTE air interface in real-time. We enhance our platform to encompass both an Software Defined Network (SDN)-enabled backhaul and an SDN-enabled WIFI router attached to the backhaul. Similar to data offloading in most ISP networks, with D-LiTE-ful we demonstrate how distributing video flows to local WIFI networks improves achievable Quality of Experience (QoE) not only for the clients moving to the WIFI hotspot but also for the remaining clients on the LTE network. Based on feedback from both a "Panoramic UI" which provides a mechanism for LTE and Client parametrisation, and a means of viewing the output of their interactions, and an "SDN UI" which offers packet level information and illustrates routing behaviours in the backhaul, we observe real-time variation in both network conditions and improvement in client QoE. The demonstration showcases how an SDN-enabled multi-faceted ISP network can provide dynamic offloading between LTE and WIFI networks by offering a means of local caching, temporary re-routing of TCP flows and centralised control.

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Proceedings of the Tenth ACM International Workshop on Wireless Network Testbeds, Experimental Evaluation, and Characterization

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