Tail asymptotics for the queue size distribution in the MAP/G/1 retrial queue

  • Authors:
  • Bara Kim;Jeongsim Kim;Jerim Kim

  • Affiliations:
  • Department of Mathematics and Telecommunication Mathematics Research Center, Korea University, Seoul, Republic of Korea 136-701;Department of Mathematics Education, Chungbuk National University, Chungbuk, Republic of Korea 361-763;Department of Mathematics and Telecommunication Mathematics Research Center, Korea University, Seoul, Republic of Korea 136-701

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

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Abstract

We consider a MAP/G/1 retrial queue where the service time distribution has a finite exponential moment. We derive matrix differential equations for the vector probability generating functions of the stationary queue size distributions. Using these equations, Perron---Frobenius theory, and the Karamata Tauberian theorem, we obtain the tail asymptotics of the queue size distribution. The main result on light-tailed asymptotics is an extension of the result in Kim et al. (J. Appl. Probab. 44:1111---1118, 2007) on the M/G/1 retrial queue.