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Timber: An SDN-based Emulation Platform for Experimental Research on Video Streaming
IEEE Journal on Selected Areas in Communications ( IF 16.4 ) Pub Date : 2020-07-01 , DOI: 10.1109/jsac.2020.2999683
Arslan Ahmad , Alessandro Floris , Luigi Atzori

In this paper, we present an open source Software-Defined Networking (SDN) based emulation platform called Timber. We aim to provide the research community with an experimental tool for the design and evaluation of the new Quality of Experience (QoE) management and monitoring procedures for video streaming. To this aim, the main functionalities of Timber include: i) an SDN application for taking QoE-aware management decisions; ii) an SDN controller to monitor the network’s QoS (Quality of Service) and implement network management actions, such as network slicing and Multiprotocol Label Switching (MPLS) based prioritization operations; iii) a complete video streaming application including a multimedia server and a DASH-based client video player; iv) a user-end probe at the client video player to monitor QoE-related video application parameters, which are stored in a database that can be accessed by the SDN application; v) data analysis tools, which enable easy data visualization of measured QoS and QoE metrics as well as execution of statistical analysis of experimental results. In this article, we introduce and describe the main characteristics and functionalities of Timber as well as the implementation details. Finally, we provide experimental results of a video streaming scenario to demonstrate the capability of Timber to implement and test QoE-aware management approaches.

中文翻译:

Timber:用于视频流实验研究的基于 SDN 的仿真平台

在本文中,我们介绍了一个名为 Timber 的基于开源软件定义网络 (SDN) 的仿真平台。我们旨在为研究社区提供一种实验工具,用于设计和评估视频流的新体验质量 (QoE) 管理和监控程序。为此,Timber 的主要功能包括: i) 用于进行 QoE 感知管理决策的 SDN 应用程序;ii) SDN 控制器,用于监控网络的 QoS(服务质量)并实施网络管理操作,例如网络切片和基于多协议标签交换 (MPLS) 的优先级操作;iii) 完整的视频流应用程序,包括多媒体服务器和基于 DASH 的客户端视频播放器;iv) 客户端视频播放器处的用户端探针,用于监控 QoE 相关视频应用参数,存储在可由 SDN 应用程序访问的数据库中;v) 数据分析工具,可轻松实现测量的 QoS 和 QoE 指标的数据可视化以及对实验结果的统计分析。在本文中,我们将介绍和描述 Timber 的主要特性和功能以及实现细节。最后,我们提供了视频流场景的实验结果,以展示 Timber 实现和测试 QoE 感知管理方法的能力。我们介绍和描述了 Timber 的主要特性和功能以及实现细节。最后,我们提供了视频流场景的实验结果,以展示 Timber 实现和测试 QoE 感知管理方法的能力。我们介绍和描述了 Timber 的主要特性和功能以及实现细节。最后,我们提供了视频流场景的实验结果,以展示 Timber 实现和测试 QoE 感知管理方法的能力。
更新日期:2020-07-01
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