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A generic quantitative relationship between Quality of Experience and Quality of Service
Ansvarlig organisasjon
2010 (engelsk)Inngår i: IEEE Network, ISSN 0890-8044, E-ISSN 1558-156X, Vol. 24, nr 2, s. 36-41Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Quality of Experience (QoE) ties together user perception, experience and expectations to application and network performance, typically expressed by Quality of Service (QoS) parameters. Quantitative relationships between QoE and QoS are required in order to be able to build effective QoE control mechanisms onto measurable QoS parameters. On this background, this paper proposes a generic formula in which QoE and QoS parameters are connected through an exponential relationship, called IQX hypothesis. The formula relates changes of QoE with respect to QoS to the current level of QoE, is simple to match, and its limit behaviours are straighforward to interpret. It validates the IQX hypothesis for streaming services, where QoE in terms of Mean Opinion Scores (MOS) is expressed as functions of loss and reordering ratio, the latter of which is caused by jitter. For web surfing as the second application area, matchings provided by the IQX hypothesis are shown to outperform previously published logarithmic functions. We conclude that the IQX hypothesis is a strong candidate to be taken into account when deriving relationships between QoE and QoS parameters.

sted, utgiver, år, opplag, sider
IEEE , 2010. Vol. 24, nr 2, s. 36-41
Emneord [en]
Full reference metric, no reference metric, reduced reference metric, MOS, PESQ, user rating, response time, cancellation rate, differential equation, IQX hypothesis
HSV kategori
Identifikatorer
URN: urn:nbn:se:bth-7791DOI: 10.1109/MNET.2010.5430142ISI: 000275661700006Lokal ID: oai:bth.se:forskinfoB33B710D332DE83FC125774F0068390DOAI: oai:DiVA.org:bth-7791DiVA, id: diva2:835453
Tilgjengelig fra: 2012-09-18 Laget: 2010-06-27 Sist oppdatert: 2018-01-11bibliografisk kontrollert

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