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Session reconstruction for HTTP adaptive streaming: Laying the foundation for network-based QoE monitoring

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7 Author(s)
Raf Huysegems ; Bell-Labs, Alcatel-Lucent, Antwerp, Belgium ; Bart De Vleeschauwer ; Koen De Schepper ; Chris Hawinkel
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HTTP Adaptive Streaming (HAS) is rapidly becoming a key video delivery technology for fixed and mobile networks. However, today there is no solution that allows network operators or CDN providers to perform network-based QoE monitoring for HAS sessions. We present a HAS QoE monitoring system, based on data collected in the network, without monitoring information from the client. To retrieve the major QoE parameters such as average quality, quality variation, rebuffering events and interactivity delay, we propose a technique called session reconstruction. We define a number of iterative steps and developed algorithms that can be used to perform HAS session reconstruction. Finally, we present the results of a working prototype for the reconstruction and monitoring of Microsoft Smooth Streaming HAS sessions that is capable of dealing with intermediate caching and user interactivity. We describe the main observations when using the platform to analyze more than a hundred HAS sessions.

Published in:

Quality of Service (IWQoS), 2012 IEEE 20th International Workshop on

Date of Conference:

4-5 June 2012