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Dynamic Multimedia Stream Adaptation and Rate Control for Heterogeneous Networks
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.
2006 (English)Conference paper, (Refereed)
Abstract [en]

: Dynamic adaptation of multimedia content is seen as an important feature of next generation networks and pervasive systems to enable terminals and applications to adapt to changes in e.g. context, access network, and available QoS due to mobility of users, devices or sessions. We present the architecture of a multimedia stream adaptation service which enables communication between terminals having heterogeneous hard- and software capabilities and served by heterogeneous networks. The service runs on special content adaptation nodes which can be placed at any location within the network. The flexible structure of our architecture allows using a variety of different adaptation engines. A generic transcoding engine is used to change the codec of streams. An MPEG-21 DIA based transformation engine allows adjusting the data rate of scalable media streams. An intelligent decision-taking engine implements adaptive flow control which takes into account current network QoS parameters and congestion information. Measurements demonstrate the quality gains achieved through adaptive congestion control mechanisms under conditions typical for a heterogeneous network

Place, publisher, year, edition, pages
2006.
National Category
Computer Science
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-18476OAI: oai:DiVA.org:kau-18476DiVA: diva2:592111
Conference
Proceedings of Packet Video Workshop 2006, Hangzhou, China, April 2006
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2013-01-21

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Other links

http://www.cs.kau.se/~andreask/papers/2006/PV2006.pdf

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CiteExportLink to record
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Citation style
  • apa
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  • de-DE
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Output format
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