An m/g/1 retrial queue with unreliable server for streaming multimedia applications

  • Authors:
  • Nathan p. Sherman;Jeffrey p. Kharoufeh;Mark a. Abramson

  • Affiliations:
  • Department of operational sciences, air force institute of technology, wright patterson afb, oh 45433-7765 e-mail: nathan.sherman@pentagon.af.mil;Department of industrial engineering, university of pittsburgh, 1048 benedum hall, pittsburgh, pa 15261 e-mail: jkharouf@pitt.edu;Department of mathematics and statistics, air force institute of technology, wright patterson afb, oh 45433-7765 e-mail: mark.abramson@afit.edu

  • Venue:
  • Probability in the Engineering and Informational Sciences
  • Year:
  • 2009

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Abstract

As a model for streaming multimedia applications, we study an unreliable retrial queue with infinite-capacity orbit and normal queue for which the retrial rate and the server repair rate are controllable. Customers join the retrial orbit if and only if their service is interrupted by a server failure. Interrupted customers do not rejoin the normal queue but repeatedly attempt to access the server at independent and identically distributed intervals until it is found functioning and idle. We provide stability conditions, queue length distributions, stochastic decomposition results, and performance measures. The joint optimization of the retrial and server repair rates is also studied.