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Quality of Experience based optimization of heterogeneous multimedia sessions in IMS
Fac. of EE & Comput., Univ. of Zagreb, Zagreb, Croatia .
Karlstad University, Faculty of Economic Sciences, Communication and IT, Department of Computer Science. Karlstad University, Faculty of Economic Sciences, Communication and IT, Centre for HumanIT.
2011 (English)In: Proceedings of Baltic Congress on Future Internet Communications, IEEE conference proceedings, 2011, 25-32 p.Conference paper, (Refereed)
Abstract [en]

For delivering multimedia services over (wireless) networks it is important that the mechanisms which negotiate and optimize content delivery under resource constraints take into account user perceived quality in order to improve user satisfaction. Within the scope of the IP Multimedia Subsystem (IMS) architecture a novel application server may be added which handles multi-user multi-flow Quality of Experience (QoE) negotiation and adaptation for heterogeneous user sessions. Based on a mathematical model, which takes into account the characteristics of audio, video and data sessions for QoE optimization, we develop several optimization algorithms to be used by the application server to maximize overall user defined QoE parameters for all ongoing multimedia sessions, subject to network resource constraints. Our results show that a greedy based approach provides a reasonable compromise in terms of run-time and sub-optimality for the overall QoE based resource allocations.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2011. 25-32 p.
National Category
Computer Science
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-10220DOI: 10.1109/BCFIC-RIGA.2011.5733210ISBN: 978-1-4244-8511-6 (print)OAI: oai:DiVA.org:kau-10220DiVA: diva2:493746
Conference
Baltic Congress on Future Internet Communications, February 2011, Riga, Latvia
Available from: 2012-02-08 Created: 2012-02-08 Last updated: 2013-10-03Bibliographically approved

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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
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  • Other locale
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Output format
  • html
  • text
  • asciidoc
  • rtf