Scaling properties of statistical end-to-end bounds in the network calculus

  • Authors:
  • Florin Ciucu;Almut Burchard;Jörg Liebeherr

  • Affiliations:
  • Department of Computer Science at the University of Virginia, Charlottesville, VA;Department of Mathematics at the University of Toronto, Toronto, ON, Canada;Department of Electrical and Computer Engineering at the University of Toronto, Toronto, ON, Canada

  • Venue:
  • IEEE/ACM Transactions on Networking (TON) - Special issue on networking and information theory
  • Year:
  • 2006

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Abstract

The stochastic network calculus is an evolving new methodology for backlog and delay analysis of networks that can account for statistical multiplexing gain. This paper advances the stochastic network calculus by deriving a network service curve, which expresses the service given to a flow by the network as a whole in terms of a probabilistic bound. The presented network service curve permits the calculation of statistical end-to-end delay and backlog bounds for broad classes of arrival and service distributions. The benefits of the derived service curve are illustrated for the exponentially bounded burstiness (EBB) traffic model. It is shown that end-to-end performance measures computed with a network service curve are bounded by O (H log H), where H is the number of nodes traversed by a flow. Using currently available techniques, which compute end-to-end bounds by adding single node results, the corresponding performance measures are bounded by O (H3).