Flow Modeling and Quality of Service Estimation for an Audio & Video Internet Network Architecture


Project Partners: Cegetel, CS Telecom (Compagnie des Signaux), Delta Partners/Anite Group, ENST Paris, INRIA Sophia Antipolis.

The aims of this project was the following:

  • Design and development of a hybrid modeling multi-purpose tool based on a performance evaluation tool (DHS) for IP Diffserv networks.
  • Analytic modeling of routers and packet scheduling.
  • Multimedia traffic sources modeling for MPLS Diffserv networks:
    • Poisson process based traffic sources
    • Audio (IPP [on-off] model using G711, G726 & G729 codecs)
    • Video (MMPP-M model using H261 codec)
    • Video (M/G/∞ model using M-JPEG,
    • MPEG1[GOP] codecs)
    • Data (Telnet, FTP, SNTMP, NNTP, lognormal, pareto, Poisson...)
    • TCP (real TCP protocol - Reno and others)
    • HTTP (On-Off combinations, HTTP 1.0 and HTTP 1.1)