Synthesis of network delays for voice packets in service overlay networks

  • Authors:

  • Hong Li;Lorne Mason

  • Affiliations:

  • McGill University, Montreal, Quebec, Canada;McGill University, Montreal, Quebec, Canada

  • Venue:
  • The Fourth International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness & Workshops
  • Year:
  • 2007

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Abstract

Toll quality Voice-over-IP (VoIP) provision over Service Overlay Networks (SONs) is still a big challenge for the current best-effort Internet. The end to end network delay, as one of the most important performance concerns, is the focus in this paper. In the paper, network delay characteristics, e.g. probability distribution and autocorrelation are studied. We propose an approach to synthesize network delay traces for QoS routing research in a full mesh Service Overlay Network(SON) given only partial information of the network delay trace. The main contributions of the paper include: 1) A parametric model of the network delay; 2) Method to synthesize network delay traces for voice packets sent over SONs. The synthesized network delay traces are shown to be close to real network delay traces. The synthetic network delay traces can be used to study quality of service provision mechanisms for VoIP applications over the Service Overlay Networks.