Title: Transient solution of an M[X]/G/1 queueing model with feedback, random breakdowns, Bernoulli schedule server vacation and random setup time
Authors: G. Ayyappan; S. Shyamala
Addresses: Department of Mathematics, Pondicherry Engineering College, Pondicherry 605014, India ' Department of Mathematics, Arunai Engineering College, Thiruvannamalai 606603, India
Abstract: We consider an M[X]/G/1 queue with Poisson arrivals, random server breakdowns and Bernoulli schedule server vacation. Both the service time and vacation time follow general distribution. After completion of a service, the server may go for a vacation with probability θ or continue staying in the system to serve a next customer, if any, with probability 1 − θ. With probability p, the customer feedback to the tail of original queue for repeating the service until the service becomes successful. With probability 1 − p = q, the customer departs the system if service be successful. The system may breakdown at random following Poisson process and the repair time follows exponential distribution. Also, we assume that at the end of a busy period, the server needs a random setup time before giving proper service. We obtain the probability generating function in terms of Laplace transforms and the corresponding steady state results explicitly.
Keywords: Bernoulli feedback; queueing models; random breakdowns; Bernoulli schedule server vacation; mean queue size; mean waiting time; probability generating function; random setup times; steady state; Poisson arrivals; Laplace transforms.
International Journal of Operational Research, 2016 Vol.25 No.2, pp.196 - 211
Received: 29 Jul 2013
Accepted: 16 Jan 2014
Published online: 31 Dec 2015 *