Preserving the independence of flows in general topologies using turn-prohibition

  • Authors:
  • Markus Fidler;Oliver Heckmann;Ralf Steinmetz

  • Affiliations:
  • Centre for Quantifiable Quality of Service (Q2S), NTNU Trondheim, Norway;Multimedia Communications Lab (KOM), TU Darmstadt, Germany;Multimedia Communications Lab (KOM), TU Darmstadt, Germany

  • Venue:
  • IWQoS'05 Proceedings of the 13th international conference on Quality of Service
  • Year:
  • 2005

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Abstract

Various elegant and powerful theories for network performance evaluation have to assume independence to be efficient. While traffic sources are often supposed to be independent, the implications of this assumption regarding flows in arbitrary networks are largely unknown. Recently, turn-prohibition was proposed to solve a related problem concerning feed-forward networks. In this paper we extend the concept of turn-prohibition to address the issue of independence of flows in general topologies. To this end we evolve an algorithm which derives a set of critical turns that provide full connectivity while conserving the independence of flows up to multiplexing points. In an iterative procedure further turns are added to improve connectivity. The developed algorithm is proven and exemplified.