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Non-uniform bandwidth reservation for real-time streaming applications based on meter table

机译：基于仪表表的实时流应用程序的非均匀带宽预留

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摘要

Real-time streaming applications like VoIP, video conference and VoD need bandwidth reservation to provide deterministic service quality in long distance transmission. In this paper, we leverage the meter table of Openflow and propose a non-uniform bandwidth reservation method which can significantly improve the maximum number of reservation requests that network can accommodate. Different from the traditional flat and uniform bandwidth reservation along the end-to-end path, based on the network programmability provided by Openflow, this method reserves different bandwidth at each link according to the available resources and provides deterministic end-to-end service quality at the same time. With our method, the reserved bandwidth at bottle neck link can be significantly reduced and more user requests can be accepted compared with the traditional way. Through simulations, it is showed that our method outperforms the traditional reservation method in most scenarios for real-time streaming applications.
机译：诸如VoIP，视频会议和VoD之类的实时流应用程序需要保留带宽，以在长距离传输中提供确定的服务质量。在本文中，我们利用Openflow的计量表，提出了一种非均匀带宽预留方法，该方法可以显着提高网络可以容纳的最大预留请求数。与传统的沿端到端路径的平坦和统一带宽预留不同，此方法基于Openflow提供的网络可编程性，该方法根据可用资源在每个链路上保留不同的带宽，并提供确定的端到端服务质量同时。与传统方法相比，使用我们的方法可以显着减少瓶颈链路上的保留带宽，并且可以接受更多的用户请求。通过仿真表明，在大多数情况下，对于实时流应用程序，我们的方法优于传统的预留方法。

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