Title: A study on M/G/1 preemptive priority retrial queue with Bernoulli working vacations and vacation interruption

Authors: P. Rajadurai

Addresses: Department of Mathematics, Srinivasa Ramanujan Centre, SASTRA University, Kumbakonam 612-001, Thanjavur, Tamilnadu, India

Abstract: This paper deals with steady state analysis of single server priority retrial queue with Bernoulli working vacation, where the regular busy server can be subjected to breakdown and repair. There are two types of customers are considered, which are priority customers and ordinary customers. As soon as orbit becomes empty, the server goes for a working vacation (WV). The server works at a lower service rate during working vacation period. If there are customers in the system at the end of each vacation, the server becomes idle and ready for serving new arrivals with probability p (single WV) or it remains on vacation with probability q (multiple WVs). Using the supplementary variable technique, we obtained the steady state probability generating functions for the system and its orbit. Important system performance measures, the mean busy period and the mean busy cycle are discussed. Finally, some numerical examples are presented.

Keywords: retrial queue; preemptive priority queue; working vacations; supplementary variable technique.

DOI: 10.1504/IJPMB.2019.099331

International Journal of Process Management and Benchmarking, 2019 Vol.9 No.2, pp.193 - 215

Received: 29 Nov 2016
Accepted: 22 Jan 2017
Published online: 29 Apr 2019 *

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