Journal of Zhejiang University-SCIENCE A

, Volume 7, Issue 5, pp 784–793 | Cite as

Delivering audiovisual content with MPEG-21-enabled cross-layer QoS adaptation

  • Ahmed Toufik 
  • Djama Ismail 


Future multimedia communication systems have to support the user’s needs, the terminal capabilities, the content specification and the underlying networking technologies. The related protocols and applications must be designed from this integration perspective in a cross-layer centric manner. In this paper, we propose an implementation of a streaming service (e.g., Television over IP service) with a unified QoS management concept that enables an IP driven integration of different system components (terminal, user, content, and network). The MPEG-21 framework is used to provide a common support for implementing and managing the end-to-end QoS. The main focus of this paper is on the architecture design, protocols specification and implementation evaluation. Performance evaluations using PSNR and SSIM objective video quality metrics show the benefit of the proposed MPEG-21-enabled cross-layer adaptation.

Key words

Cross-layer adaptation MPEG-21 multimedia framework Real-time streaming QoS 

CLC number



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Copyright information

© Zhejiang University 2006

Authors and Affiliations

  • Ahmed Toufik 
    • 1
  • Djama Ismail 
    • 1
  1. 1.CNRS-LaBRI LaboratoryUniversity of Bordeaux-1.351 Cours de la LibérationTalenceFrance

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