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Statements

Subject Item
n2:RIV%2F61989100%3A27240%2F10%3A86075355%21RIV11-MSM-27240___
rdf:type
skos:Concept n14:Vysledek
dcterms:description
In proposed paper we analyse MOS VoIP call quality estimate using E-model as defined by ITU-T. Influence of network parameters is further investigated with focus on delay, packet loss and jitter. Analysis of dependence of predicted MOS value by E-model serves as a basis for newly proposed method of effective packet loss calculation. In this paper, theoretical model of network jitter is described through Pareto/D/1/K system describing packet arrivals and their processing at input of receiving device with finite memory buffer serving as dejitter buffer. Theoretical analysis of jitter effects on MOS is supported by simulation and 189 measurements. Result is a new equation incorporating network jitter and jitter buffer length as input parameters substituting existing Ppl (network packet loss) with newly proposed Pplef (effective packet loss). In proposed paper we analyse MOS VoIP call quality estimate using E-model as defined by ITU-T. Influence of network parameters is further investigated with focus on delay, packet loss and jitter. Analysis of dependence of predicted MOS value by E-model serves as a basis for newly proposed method of effective packet loss calculation. In this paper, theoretical model of network jitter is described through Pareto/D/1/K system describing packet arrivals and their processing at input of receiving device with finite memory buffer serving as dejitter buffer. Theoretical analysis of jitter effects on MOS is supported by simulation and 189 measurements. Result is a new equation incorporating network jitter and jitter buffer length as input parameters substituting existing Ppl (network packet loss) with newly proposed Pplef (effective packet loss).
dcterms:title
Impact of jitter on speech quality estimation in modified E-model Impact of jitter on speech quality estimation in modified E-model
skos:prefLabel
Impact of jitter on speech quality estimation in modified E-model Impact of jitter on speech quality estimation in modified E-model
skos:notation
RIV/61989100:27240/10:86075355!RIV11-MSM-27240___
n3:aktivita
n10:R
n3:aktivity
R
n3:dodaniDat
n15:2011
n3:domaciTvurceVysledku
n8:8051283
n3:druhVysledku
n19:D
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
262973
n3:idVysledku
RIV/61989100:27240/10:86075355
n3:jazykVysledku
n4:eng
n3:klicovaSlova
packet arrival; Pareto; de-jitter buffer; estimation; network delay; jitter; packet loss; MOS; E-model; VoIP
n3:klicoveSlovo
n5:packet%20arrival n5:VoIP n5:packet%20loss n5:estimation n5:network%20delay n5:de-jitter%20buffer n5:jitter n5:MOS n5:Pareto n5:E-model
n3:kontrolniKodProRIV
[4A51B573B338]
n3:mistoKonaniAkce
Velké Losiny
n3:mistoVydani
Ostrava
n3:nazevZdroje
12th International Conference on Research in Telecommunication Technologies
n3:obor
n18:IN
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n15:2010
n3:tvurceVysledku
Halás, Michal Kováč, Adrian Vozňák, Miroslav
n3:typAkce
n11:EUR
n3:zahajeniAkce
2010-09-08+02:00
s:numberOfPages
7
n17:hasPublisher
Vysoká škola báňská - Technická univerzita Ostrava
n20:isbn
978-80-248-2261-7
n16:organizacniJednotka
27240