Busy period analysis for M/PH/1 queues with workload dependent balking

  • Authors:
  • Liqiang Liu;Vidyadhar G. Kulkarni

  • Affiliations:
  • Department of Statistics and Operations Research, University of North Carolina, Chapel Hill, USA 27599-3180;Department of Statistics and Operations Research, University of North Carolina, Chapel Hill, USA 27599-3180

  • Venue:
  • Queueing Systems: Theory and Applications
  • Year:
  • 2008

Quantified Score

Hi-index 0.00

Visualization

Abstract

We consider an M/PH/1 queue with workload-dependent balking. An arriving customer joins the queue and stays until served if and only if the system workload is no more than a fixed level at the time of his arrival. We begin by considering a fluid model where the buffer content changes at a rate determined by an external stochastic process with finite state space. We derive systems of first-order linear differential equations for the mean and LST (Laplace-Stieltjes Transform) of the busy period in this model and solve them explicitly. We obtain the mean and LST of the busy period in the M/PH/1 queue with workload-dependent balking as a special limiting case of this fluid model. We illustrate the results with numerical examples.