Statistical analysis and modeling of Skype VoIP flows

  • Authors:
  • Natalia M. Markovich;Udo R. Krieger

  • Affiliations:
  • Institute of Control Sciences, Russian Academy of Sciences, Profsoyuznaya 65, 117997 Moscow, Russia;Otto-Friedrich University, D-96052 Bamberg, Germany

  • Venue:
  • Computer Communications
  • Year:
  • 2010

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Abstract

The traffic characterization of adaptive real-time applications provides a challenging engineering task of the current Internet. Here the arrival and packet length processes arising from a unidirectional VoIP flow of Skype packets are investigated by statistical means. The mean traffic load offered by the packet flow to a virtual link of limited capacity in a finite observation period is calculated and the mean and upper bounds for the time without loss are derived. A possible characterization of the packet arrival process by a properly chosen non-linear GARCH (1,1) model is presented.