Tail probabilities of low-priority waiting times and queue lengths in {MAP}/{GI}/1 queues

  • Authors:
  • Vijay Subramanian;R. Srikant

  • Affiliations:
  • Mathematics of Communication Networks, Motorola, 1501 W. Shure Drive, Arlington Heights, IL 60004, USA E-mail: VSUBRAM2@email.mot.com;Coordinated Science Laboratory and Department of General Engineering, University of Illinois, 1308 W. Main Street, Urbana, IL 61801, USA E-mail: rsrikant@uiuc.edu

  • Venue:
  • Queueing Systems: Theory and Applications
  • Year:
  • 1999

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Abstract

We consider the problem of estimating tail probabilities of waiting times in statistical multiplexing systems with two classes of sources – one with high priority and the other with low priority. The priority discipline is assumed to be nonpreemptive. Exact expressions for the transforms of these quantities are derived assuming that packet or cell streams are generated by Markovian Arrival Processes (MAPs). Then a numerical investigation of the large-buffer asymptotic behavior of the the waiting-time distribution for low-priority sources shows that these asymptotics are often non-exponential.