6th International ICST Symposium on Modeling and Optimization

Research Article

Delay analysis for real-time streaming media in multi-hop ad hoc networks

Download499 downloads
  • @INPROCEEDINGS{10.4108/ICST.WIOPT2008.3152,
        author={Ralph El-Khoury and Rachid El-Azouzi and Eitan Altman},
        title={Delay analysis  for real-time streaming media  in multi-hop ad hoc networks},
        proceedings={6th International ICST Symposium on Modeling and Optimization},
        keywords={Ad hoc networks Cross layer design  Delay effects Quality of service Spread spectrum communication Streaming media Telecommunication traffic Throughput Traffic control Wireless networks},
  • Ralph El-Khoury
    Rachid El-Azouzi
    Eitan Altman
    Year: 2008
    Delay analysis for real-time streaming media in multi-hop ad hoc networks
    DOI: 10.4108/ICST.WIOPT2008.3152
Ralph El-Khoury1,*, Rachid El-Azouzi1,*, Eitan Altman2,*
  • 1: LIA/CERI, University of Avignon, Agroparc BP 1228, 84911 Avignon, France.
  • 2: INRIA BP 93, 2004 Route des Lucioles 06902 Sophia Antipolis, France.
*Contact email: ralph.elkhoury@univ-avignon.fr, rachid.elazouzi@univ-avignon.fr, altman@sophia.inria.fr


In this paper, we investigate an important issue for real-time multimedia over multi-hop ad-hoc networks on different layers. Such application requires receiver playback buffers to smooth network delay variation and reconstruct the periodic nature of the transmitted packets. Packets arriving after their schedule deadline are considered late and are not played out. This require that the network is able to offer quality of service appropriate for the delay bounds of the real-time application constrains. Our primary contribution concerns the study of the end to end delay. Based on the latter results, we approximate the loss rate of a real-time traffic which requires a delay bounds constraints. Then, we propose a cross layer scheme from the network layer to the MAC layer to support real-time traffic. In this scheme, we reduce the loss rate by decreasing the packets arrived after their schedule deadline. Through numerical and simulation results, we demonstrate utility and efficiency of our approach.