Abstract
In this paper, we analyse a queueing model with two types of requests arriving in a marked Markov arrival process. Type-1 requests require a constant service rate, while type-2 requests admit a flexible service rate. Mixed service discipline is considered. It is defined as follows. The number of type-1 requests that can be processed by the system simultaneously is restricted. Type-2 requests receive service according to the classical processor sharing discipline and use all currently available (not occupied by type-1 requests) system bandwidth. Type-2 requests can be impatient and leave the system without receiving complete service. The system behavior is described by a multidimensional Markov chain. The infinitesimal generator of this chain is derived. The transparent ergodicity condition is obtained, and the stationary performance measures of the system are computed. A numerical example is presented, including consideration of the problem of choosing the optimal values of the system bandwidth and its share dedicated to the service of type-1 requests.
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The authors highly appreciate valuable comments by the anonymous reviewers account of which lead to the improvement of our manuscript.
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The individual contributions of the authors are the following: Alexander Dudin - conceptualization; methodology; formal analysis; investigation; writing, original draft preparation; supervision; writing, review and editing. Sergei Dudin - conceptualization; methodology; formal analysis; software; validation; writing, review and editing. Olga Dudina - methodology; software; validation; formal analysis; writing, review and editing. All authors reviewed the manuscript.
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Dudin, A., Dudin, S. & Dudina, O. Analysis of a Queueing System with Mixed Service Discipline. Methodol Comput Appl Probab 25, 57 (2023). https://doi.org/10.1007/s11009-023-10042-1
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DOI: https://doi.org/10.1007/s11009-023-10042-1
Keywords
- Streaming and elastic traffic
- Marked Markov arrival process
- Processor sharing
- Impatience
- Ergodicity condition