@article{2ad6f1089cd243eb91ec7bf5120a2d96,
title = "Analysis of a Markovian feedback queue with multi-class customers and its application to the weighted round-robin queue",
abstract = "We consider an M/G/1 Markovian feedback queue with multi-class customers. We derive functional equations for the stationary distribution of the queue size and the total response time. A system of linear equations is also derived for the moments of the queue size and the total response time distributions. The mean and the variance of the queue size and the total response time can be computed by solving the system of linear equations. By using the Markovian feedback queue with multi-class customers, we also investigate the M/PH/1 weighted round-robin queue. Numerical examples are given to show that moments of the queue sizes and of the total response times can be easily computed for the weighted round-robin queue. As the service quantum shrinks to zero, the moments of the queue sizes and the total response times converge to some limits which should be the moments of the corresponding discriminatory processor sharing queue.",
keywords = "Feedback queue, Queue size, Round-robin, Sojourn time, Weighted round-robin",
author = "Jerim Kim and Bara Kim and Hsing Luh",
note = "Funding Information: Acknowledgements We are grateful to the reviewers for valuable comments and suggestions, which greatly improved this paper. J. Kim{\textquoteright}s research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2016R1C1B1016602). B. Kim{\textquoteright}s research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (NRF-2017R1A2B4012676). Funding Information: We are grateful to the reviewers for valuable comments and suggestions, which greatly improved this paper. J. Kim?s research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (2016R1C1B1016602). B. Kim?s research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) (NRF-2017R1A2B4012676). Publisher Copyright: {\textcopyright} 2018, Springer Science+Business Media, LLC, part of Springer Nature.",
year = "2019",
month = jun,
day = "30",
doi = "10.1007/s10479-018-2917-9",
language = "English",
volume = "277",
pages = "137--159",
journal = "Annals of Operations Research",
issn = "0254-5330",
publisher = "Springer Netherlands",
number = "2",
}