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Objective end-to-end QoS gain from packet prioritization and layering in MPEG-2 streaming
Mid Sweden University.
Mid Sweden University.
Mid Sweden University.
2002 (English)In: International Packetvideo workshop 2002, 2002Conference paper, Published paper (Refereed)
Abstract [en]

Layered video coding as well as prioritized packet scheduling are two well-known methods that may improve the quality of service level in real-time applications with high bandwidth requirements, and are used over packet switched networks. However, it is often difficult to get an idea of, and to quantify, the actual gains that may be achievable, especially from an end-to-end perspective.In this paper, we present some experimental results from using temporally layered MPEG-2 video combined with basic per-layer IP packet prioritization. The goal has been to find out if a basic scheme is useful at all in combination with this particular source coding method, and if so, how much the objective video quality can be increased during bandwidth-constrained periods. The quality is measured in terms of PSNR and the results are compared to the case of equal packet priority. Also, different packet sizes as well as packet queuing disciplines are used. We conclude that using even a relatively simple temporal layering strategy in combination with packet prioritization can quite significantly improve the end-to-end quality of MPEG-2 video, especially in moderately bandwidth constrained situations. Furthermore, packet size and queuing discipline is found to have an impact.

Place, publisher, year, edition, pages
2002.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-8812OAI: oai:DiVA.org:kth-8812DiVA: diva2:14257
Note
QC 20111219Available from: 2005-11-24 Created: 2005-11-24 Last updated: 2011-12-19Bibliographically approved
In thesis
1. Efficient multicast video streaming over heterogeneous networks
Open this publication in new window or tab >>Efficient multicast video streaming over heterogeneous networks
2004 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Kista: Mikroelektronik och informationsteknik, 2004
Series
Trita-IMIT-TSLAB. AVH, 04:04
National Category
Telecommunications
Identifiers
urn:nbn:se:kth:diva-510 (URN)
Available from: 2005-11-24 Created: 2005-11-24 Last updated: 2012-03-22
2. Robust scalable video multicast and performance issues in wireless LANs
Open this publication in new window or tab >>Robust scalable video multicast and performance issues in wireless LANs
2004 (English)Licentiate thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Kista: Mikroelektronik och informationsteknik, 2004
Series
TRITA-IMIT-TSLAB. AVH, 04:03
National Category
Telecommunications
Identifiers
urn:nbn:se:kth:diva-509 (URN)
Available from: 2005-11-24 Created: 2005-11-24 Last updated: 2016-11-24Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
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
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf