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The architecture of a middleware layer for controlling the quality of multimedia sessions

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Abstract

Collaborative multimedia systems demand overall session quality control beyond the level of Quality of Service (QoS) as pertaining to individual streams in isolation of others. To this end, we have recently introduced the concept of Quality of Session (QoSess) control. At every instant in time, the quality of the session depends on the actual QoS offered by the system to each of the application streams, as well as on the relative priorities of these streams according to the application semantics. In this paper, we present the architecture of a middleware layer for controlling the quality of a session. In addition, we describe the inter-stream bandwidth adaptation mechanisms, which are used by the QoSess layer to dynamically control the bandwidth shares of the streams belonging to a session.

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Authors and Affiliations

  1. IBM Thomas J. Watson Research Center, P.O. Box 704, Yorktown Heights, NY, 10598, USA

    Alaa Youssef

  2. Department of Computer Science, Old Dominion University, Norfolk, VA, 23529, USA

    Hussein Abdel-Wahab & Kurt Maly

Authors
  1. Alaa Youssef
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  2. Hussein Abdel-Wahab
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  3. Kurt Maly
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Youssef, A., Abdel-Wahab, H. & Maly, K. The architecture of a middleware layer for controlling the quality of multimedia sessions. Cluster Computing 2, 187–194 (1999). https://doi.org/10.1023/A:1019082810007

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  • DOI: https://doi.org/10.1023/A:1019082810007

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