miun.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
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
Increasing bandwidth utilization in next generation IPTV networks
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (SensibleReality, MUCOM)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Technology and Media. (SensibleReality, MUCOM)
2004 (English)In: ICIP: 2004 INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, VOLS 1- 5, IEEE conference proceedings, 2004, 2075-2078 p.Conference paper, (Refereed)
Abstract [en]

In this paper we present a novel idea regarding transmission of next generation IPTV content. Today IPTV systems utilize a COP structure tu provide stream synchronization points for the clients, these are used when a channel switch occur. Since channel switches made by TV audiences are quite rare it is redundant to send synchronization opportunities in a GOP manner. The proposed design, synchronization frames fur channel switching (SFCS), only requests synchronization frames when needed. We present a network traffic analysis model and compare it with simulations. SFCS increases bandwidth utilization compared to traditional COP system under the presented transmission environment.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2004. 2075-2078 p.
Series
IEEE International Conference on Image Processing (ICIP)
Keyword [en]
IPTV, network
National Category
Computer Science
Identifiers
URN: urn:nbn:se:miun:diva-409DOI: 10.1109/ICIP.2004.1421493ISI: 000228043502163Local ID: 1947ISBN: 0-7803-8554-3 (print)OAI: oai:DiVA.org:miun-409DiVA: diva2:2035
Conference
International Conference on Image Processing (ICIP 2004), Oct 24-27, 2004, Singapore
Available from: 2008-12-04 Created: 2008-09-19 Last updated: 2012-02-16Bibliographically approved
In thesis
1. Bandwidth Efficient IPTV Distribution: On Error Resilience and Fast Channel Change
Open this publication in new window or tab >>Bandwidth Efficient IPTV Distribution: On Error Resilience and Fast Channel Change
2007 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Television is now changing its traditional distribution forms to being distributed digitally over broadband networks. The recent development of broadband Internet connectivity has made the transition to Internet Protocol Television (IPTV) possible. When changing distribution technique of an existing service, it is important that the new technique does not make the service worse from the user’s point of view. Although a broadband network offers high capacity and has excellent performance there will be occasional packet losses and delays which could negatively influence the user experience of the delivered broadband service. Since bandwidth is a key constraint for video distribution there is a strong incentive for finding schemes to increase bandwidth utilization, especially when distributing high bandwidth IPTV services. In digital video coding it is common to use predictive coding to remove temporal redundancy in video sequences. This technique greatly increases the coding efficiency but makes the sequence more sensitive to information loss or delay. In addition, the use of predictive coding also introduce a inter frame dependency which could make the channel change significantly slower.

This thesis addresses two important areas related to bandwidth efficient IPTV distribution, namely error resilience and fast channel change. A method to numerically estimate the decoded objective video quality of scalable coded video is presented and evaluated. The method can be used to estimate objective video quality for a scalable video transmission system subject to packet-loss. The quality gain of temporally scalable video in a priority packet dropping environment is also investigated and quantified. Synchronization Frames for Channel Switching (SFCS) is proposed as a method to code and distribute video with IP-multicast, which can be used to efficiently combat packet-loss, increase bandwidth utilization, and offer a channel change speed up. The performance of SFCS is analyzed and bandwidth estimation expressions are formulated, analytical results are complemented with computer simulations. The results show that SFCS deployed in an IPTV delivery system can significantly lower the bandwidth consumption and speed up the channel change.

Place, publisher, year, edition, pages
Sundsvall: Mid Sweden Univ, 2007
Series
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 39
Keyword
IPTV distribution
National Category
Information Science
Identifiers
urn:nbn:se:miun:diva-52 (URN)978-91-85317-77-6 (ISBN)
Public defence
2008-01-17, Campus Sundsvall L111, 13:15 (English)
Opponent
Supervisors
Available from: 2007-12-21 Created: 2007-12-21 Last updated: 2010-06-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full texthttp://dx.doi.org/10.1109/ICIP.2004.1421493

Search in DiVA

By author/editor
Jennehag, UlfZhang, Tingting
By organisation
Department of Information Technology and Media
Computer Science

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

Total: 386 hits
CiteExportLink to record
Permanent link

Direct link
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