A Queueing Model with Server Breakdowns, Repairs, Vacations, and Backup Server
Operations Research Perspectives
Queueing models wherein having a backup server during the absences (caused by vacations and breakdowns) of the main server have found many applications in practice. Such services offered by a backup server can be viewed as the (main) server working during a vacation or during a breakdown period. A backup server offering services can be thought of as the main server working (at a reduced rate) on vacations/repairs. Using Neuts’ versatile point process for the arrivals and modeling the service times with phase type distributions, we propose a model that generalizes some of the previously published ones on working-vacation-breakdown-repair queues. We carry out the steady-state analysis and report interesting illustrative numerical examples. We also prove decomposition results for the rate matrix and the mean number in the system under some special cases.
© 2019 The Authors. Published by Elsevier Ltd
Chakravarthy, Srinivas; Shruti; and Kulshrestha, Rakhee, "A Queueing Model with Server Breakdowns, Repairs, Vacations, and Backup Server" (2020). Industrial & Manufacturing Engineering Publications. 104.