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dc.contributor.authorKováč, Adrián
dc.contributor.authorHalas, Michal
dc.date.accessioned2012-12-06T09:29:07Z
dc.date.available2012-12-06T09:29:07Z
dc.date.issued2012
dc.identifier.citationAdvances in electrical and electronic engineering. 2012, vol. 10, no. 4, p. 276-281.cs
dc.identifier.issn1804-3119
dc.identifier.urihttp://hdl.handle.net/10084/95810
dc.description.abstractThis paper deals with the ITU-T E-model, which is used for non-intrusive MOS VoIP call quality estimation on IP networks. The pros of E-model are computational simplicity and usability on real-time traffic. The cons, as shown in our previous work, are the inability of E-model to reflect effects of network jitter present on real traffic flows and jitter-buffer behavior on end user devices. These effects are visible mostly on traffic over WAN, internet and radio networks and cause the E-model MOS call quality estimate to be noticeably too optimistic. In this paper, we propose a modification to E-model using previously proposed Pplef (effective packet loss) using jitter and jitter-buffer model based on Pareto/D/1/K system. We subsequently perform optimization of newly added parameters reflecting jitter effects into E-model by using PESQ intrusive measurement method as a reference for selected audio codecs. Function fitting and parameter optimization is performed under varying delay, packet loss, jitter and different jitter-buffer sizes for both, correlated and uncorrelated long-tailed network traffic.cs
dc.format.extent560418 bytescs
dc.format.mimetypeapplication/pdfcs
dc.language.isoencs
dc.publisherVysoká škola báňská - Technická univerzita Ostravacs
dc.relation.ispartofseriesAdvances in electrical and electronic engineeringcs
dc.relation.urihttp://advances.utc.sk/index.php/AEEE/article/view/739/809cs
dc.rights© Vysoká škola báňská - Technická univerzita Ostrava
dc.rightsCreative Commons Attribution 3.0 Unported (CC BY 3.0)
dc.subjectcall qualitycs
dc.subjecte-modelcs
dc.subjectjittercs
dc.subjectjitter buffercs
dc.subjectMOScs
dc.subjectnetwork trafficcs
dc.subjectpacket losscs
dc.titleE-model MOS estimate precision improvement and modelling of jitter effectscs
dc.typearticlecs
dc.rights.accessopenAccess
dc.type.versionpublishedVersioncs
dc.type.statusPeer-reviewedcs


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  • AEEE. 2012, vol. 10 [57]
  • OpenAIRE [3538]
    Kolekce určená pro sklízení infrastrukturou OpenAIRE; obsahuje otevřeně přístupné publikace, případně další publikace, které jsou výsledkem projektů rámcových programů Evropské komise (7. RP, H2020).

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