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COST 237 Workshop on Multimedia Services and Network Services

COST237 1996: Multimedia Telecommunications and Applications pp 216–231Cite as

New Network and ATM Adaptation Layers for real-time multimedia applications: A performance study based on psychophysics

  • Session E: Performance Studies
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Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 1185))

Abstract

We present in this paper Network and ATM Adaptation Layers for real-time multimedia applications. These layers provide a robust transmission by applying per-cell sequence numbering combined with a selective Forward Error Correction (FEC) mechanism based on Burst Erasure codes. We compare their performance against a transmission over AAL5 by simulating the transport of an MPEG-2 sequence over an ATM network. Performance is measured in terms of Cell Loss Ratio (CLR) and user perceived quality. The proposed layers achieve an improvement on the cell loss figures obtained for AAL5 of about one order of magnitude under the same traffic conditions. To evaluate the impact of cell losses at the application level, we apply a perceptual quality measure to the decoded MPEG-2 sequences. From a perceptual point of view, the proposed AAL achieves a graceful quality degradation compared to AAL5 which shows a critical CLR value beyond which quality drops very fast. The application of a selective FEC achieves an even smoother image quality degradation with a small overhead.

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Author information

Authors and Affiliations

  1. Telecommunication Services Group-TCOM Laboratory, Swiss Federal Institute of Technology, CH-1015, Lausanne, Switzerland

    Xavier Garcia Adanez, Olivier Verscheure & Jean -Pierre Hubaux

Authors
  1. Xavier Garcia Adanez
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  2. Olivier Verscheure
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  3. Jean -Pierre Hubaux
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Editor information

Giorgio Ventre Jordi Domingo-Pascual André Danthine

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© 1996 Springer-Verlag Berlin Heidelberg

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Adanez, X.G., Verscheure, O., Hubaux, J.P. (1996). New Network and ATM Adaptation Layers for real-time multimedia applications: A performance study based on psychophysics. In: Ventre, G., Domingo-Pascual, J., Danthine, A. (eds) Multimedia Telecommunications and Applications. COST237 1996. Lecture Notes in Computer Science, vol 1185. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0020859

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  • DOI: https://doi.org/10.1007/BFb0020859

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-62096-9

  • Online ISBN: 978-3-540-49680-9

  • eBook Packages: Springer Book Archive

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