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VLQoE: Video QoE instrumentation on the smartphone
Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
Blekinge Institute of Technology, Faculty of Computing, Department of Communication Systems.
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2015 (English)In: Multimedia tools and applications, ISSN 1380-7501, E-ISSN 1573-7721, Vol. 74, no 2, 381-411 p.Article in journal (Refereed) Published
Abstract [en]

The usage of network-demanding applications is growing rapidly such as video streaming on mobile terminals. However, network and/or service providers might not guarantee the perceived quality for video streaming that demands high packet transmission rate. In order to satisfy the user expectations and to minimize user churn, it is important for network operators to infer the end-user perceived quality in video streaming. Today, the most reliable method to obtain end-user perceived quality is through subjective tests, and the preferred location is the user interface as it is the closest point of application to the end-user. The end-user perceived quality on video streaming is highly influenced by occasional freezes; technically the extraordinary time gaps between two consecutive pictures that are displayed to the user, i.e., high inter-picture time. In this paper, we present a QoE instrumentation for video streaming, VLQoE. We added functionality to the VLC player to record a set of metrics from the user interface, application-level, network-level, and from the available sensors of the device. To the best of our knowledge, VLQoE is the first tool of its kind that can be used in user experiments for video streaming. By using the tool, we present a two state model based on the inter-picture time, for the HTTP- and RTSP-based video streaming via 3.5G. Next, we studied the influence of inter-picture time on the user perceived quality through out a user study. We investigated the minimum user perceived inter-picture time, and the user response time.

Place, publisher, year, edition, pages
Springer , 2015. Vol. 74, no 2, 381-411 p.
Keyword [en]
QoE (Quality of Experience), QoS (Quality of Service), Smartphone, Video, User interface, Human Computer Interaction (HCI)
National Category
Human Aspects of ICT Computer Science Media and Communications
Identifiers
URN: urn:nbn:se:bth-6316DOI: 10.1007/s11042-014-1919-0ISI: 000348445300005Local ID: oai:bth.se:forskinfo095163BDD4E8ABE6C1257CAF007391CDOAI: oai:DiVA.org:bth-6316DiVA: diva2:833813
Note

http://link.springer.com/article/10.1007%2Fs11042-014-1919-0

Available from: 2015-05-26 Created: 2014-04-03 Last updated: 2017-12-04Bibliographically approved

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Ickin, SelimFiedler, MarkusArlos, Patrik
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