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Waiting times in quality of experience for web based services
Blekinge Tekniska Högskola, Sektionen för datavetenskap och kommunikation.
Ansvarig organisation
2012 (Engelska)Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

A considerable share of applications such as web or e-mail browsing, online picture viewing and file downloads imply waiting times for their users, which is due to the turn-taking of information requests by the user and correspoding response times until each request is fulfilled. Thus, end-user quality perception in the context of interactive data services is dominated by waiting times; the longer the latter, the less satisfied the user becomes. As opposed to heavily researched multimedia experience, perception of waiting times is still not strongly explored in the context of Quality of Experience (QoE). This tutorial will contribute to closing this gap. In its first part, it addresses perception principles and discusses their applicability towards fundamental relationships between waiting times and resulting QoE. It then investigates to which extent the same relationships can also be used to describe QoE for more complex services such as web browsing. Finally, it discusses applications where waiting times determine QoE, amongst other factors. For example, the past shift from UDP media streaming to TCP media streaming (e.g. youtube.com) has extended the relevance of waiting times also to the domain of online video services. In particular, user-perceived quality suffers from initial delays when applications are launched, as well as from freezes during the delivery of the stream. These aspects, which have to be traded against each other to some extent, will be discussed mainly for HTTP video streaming in the last part of this tutorial.

Ort, förlag, år, upplaga, sidor
Melbourne, Australia: IEEE , 2012.
Nyckelord [en]
Initial Delay, QoE, Stalling, Subjective Tests, Waiting Time Perception, Web QoE, YouTube Video Streaming
Nationell ämneskategori
Medie- och kommunikationsvetenskap Datavetenskap (datalogi)
Identifikatorer
URN: urn:nbn:se:bth-7259DOI: 10.1109/QoMEX.2012.6263888Lokalt ID: oai:bth.se:forskinfo349BBE221BA80E52C1257A60005503FCISBN: 978-1-4673-0724-6 (tryckt)OAI: oai:DiVA.org:bth-7259DiVA, id: diva2:834849
Konferens
Fourth International Workshop on Quality of Multimedia Experience (QoMEX)
Anmärkning

IEEExplore: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6263888

Tillgänglig från: 2012-09-18 Skapad: 2012-08-20 Senast uppdaterad: 2018-01-11Bibliografiskt granskad

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