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The unexpected QoE killer: When the network emulator misshapes traffic and QoE
Blekinge Tekniska Högskola, Fakulteten för datavetenskaper, Institutionen för kommunikationssystem.
2015 (engelsk)Inngår i: 2015 7th International Workshop on Quality of Multimedia Experience, QoMEX 2015, IEEE Communications Society, 2015, Vol. Article number 7148093Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Packet streams observed in today’s networks show a high degree of autocorrelation as successive packets tend to exhibit similar delay and loss characteristics. Network emulators used to conduct performance evaluations therefore have to support the generation of such autocorrelated streams. Typically, this is done using first order autoregressive processes. In this paper, we show that a common implementation of this approach leads to problems when emulating correlated packet loss, and therefore possibly produces erroneous results and conclusions when evaluating objectively application quality or QoE in subjective studies. Further typical network emulator implementations make even low packet jitter become an unexpected QoE killer. © 2015 IEEE.

sted, utgiver, år, opplag, sider
IEEE Communications Society, 2015. Vol. Article number 7148093
Emneord [en]
Application quality; Autocorrelated; Delay and loss; First-order autoregressive process; Network emulators; Packet jitter; Packet streams, Multimedia systems
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Identifikatorer
URN: urn:nbn:se:bth-10653DOI: 10.1109/QoMEX.2015.7148093ISI: 000375091800014Scopus ID: 2-s2.0-84939558403ISBN: 978-147998958-4 (tryckt)OAI: oai:DiVA.org:bth-10653DiVA, id: diva2:854593
Konferanse
2015 7th International Workshop on Quality of Multimedia Experience, QoMEX 2015; Costa Navarino, Messinia; Greece; 26 May 2015 through 29 May 2015
Tilgjengelig fra: 2015-09-17 Laget: 2015-09-15 Sist oppdatert: 2016-06-22bibliografisk kontrollert

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Totalt: 109 treff
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  • de-DE
  • en-GB
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