When does lower bitrate give higher quality in modern video services?

Decebal Constantin Mocanu, Antonio Liotta, Arianna Ricci, Maria Torres Vega, Georgios Exarchakos

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

20 Citations (Scopus)

Abstract

Due to the difficulties on approximating the human perception with algorithms, increasing the users Quality of Experience (QoE) in modern video services is a challenging task. But more than that, prior to estimating QoE, it is important to know how different types of network impairments actually affect the video quality. This paper takes a closer look at the relation between the network quality of service (QoS) and the video QoE degradation. Using a sophisticated network emulation environment, we benchmark a range of video types and video quality levels under controlled network conditions. Our analysis shows that, along with a number of expected situations come also some counterintuitive QoS-to-QoE conditions. We discuss ways in which a better understanding of the mutual influence between networks and video streams could lead to more efficient utilization of the Internet.

Original languageEnglish
Title of host publicationIEEE/IFIP NOMS 2014 - IEEE/IFIP Network Operations and Management Symposium
Subtitle of host publicationManagement in a Software Defined World
Place of PublicationPiscataway, NJ
PublisherIEEE Computer Society Press
ISBN (Electronic)978-1-4799-0913-1
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventIEEE/IFIP Network Operations and Management Symposium: Management in a Software Defined World, NOMS 2014 - Krakow, Poland
Duration: 5 May 20149 May 2014

Publication series

NameIEEE Network Operations and Management Symposium
PublisherIEEE
Volume2014
ISSN (Print)1542-1201
ISSN (Electronic)2374-9709

Conference

ConferenceIEEE/IFIP Network Operations and Management Symposium: Management in a Software Defined World, NOMS 2014
CountryPoland
CityKrakow
Period5/05/149/05/14

Keywords

  • Network impairments
  • Quality of experience
  • Video quality assessment
  • Video services

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