Pathwise comparison results for stochastic fluid networks

  • Authors:
  • Jean-Paul Haddad;Ravi R. Mazumdar;Francisco J. Piera

  • Affiliations:
  • Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada N2L 3G1;Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada N2L 3G1;Electrical Engineering Department, University of Chile, Santiago, Chile

  • Venue:
  • Queueing Systems: Theory and Applications
  • Year:
  • 2010

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Abstract

We prove some new pathwise comparison results for single class stochastic fluid networks. Under fairly general conditions, monotonicity with respect to the (state- and time-dependent) routing matrices is shown. Under more restrictive assumptions, monotonicity with respect to the service rates is shown as well. We conclude by using the comparison results to establish a moment bound, a stability result for stochastic fluid networks with Lévy inputs, and a comparison result for multi-class GPS networks.