An M/G/1 queue with second optional service

An M/G/1 queue with second optional service

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Article ID: iaor20013047
Country: Netherlands
Volume: 34
Issue: 1/4
Start Page Number: 37
End Page Number: 46
Publication Date: Jan 2000
Journal: Queueing Systems
Authors:
Keywords: M/G/1 queues
Abstract:

We study an M/G/1 queue with second optional service. Poisson arrivals with positive mean arrival rate all demand the first ‘essential’ service, whereas only some of them demand the second ‘optional’ service. The service times of the first essential service are assumed to follow a general (arbitrary) distribution with distribution function B(ν) and those of the second optional service are exponential with mean service time less than 1. The time-dependent probability generating functions have been obtained in terms of their Laplace transforms and the corresponding steady state results have been derived explicitly. Also the mean queue length and the mean waiting time have been found explicitly. The well-known Pollaczec–Khinchine formula and some other known results including M/D/1, M/Ek/1 and M/M/1 have been derived as particular cases.

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