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논문 기본 정보

자료유형
학술저널
저자정보
Seokjun Lee (Sangji University) Chesoong Kim (Sangji University) Sergey Dudin (Belarusian State University) Olga Dudina (Belarusian State University)
저널정보
대한산업공학회 Industrial Engineering & Management Systems Industrial Engineering & Management Systems Vol.22 No.2
발행연도
2023.6
수록면
153 - 164 (12page)
DOI
10.7232/iems.2023.22.2.153

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초록· 키워드

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Priority queuing systems can be used to solve problems of designing and optimizing various real systems, in particular, telecommunication and emergency medical systems. Various prioritization schemes have been supplemented in recent years by dynamic priorities that can change while a customer waits for service. In this paper, we analyze multi-server queuing system providing service to heterogeneous requests arriving in the Marked Markov Arrival Process and having different priorities. These priorities are randomized preemptive at the moments of request admission to a finite buffer and are non-preemptive during the service. Requests of each type form own queue in the common buffer space. During the stay in the queue, request can transit to a queue for requests of higher priority and may depart from the system due to impatience. Stationary distribution of the system states is computed via the construction and analysis of the multi-dimensional Markov chain with a special generator structure. Performance measures of the system are computed. Numerical results, including solution of optimization problem, are presented.

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ABSTRACT
1. INTRODUCTION
2. MATHEMATICAL MODEL
3. PROCESS OF SYSTEM STATES
4. PERFORMANCE MEASURES OF THE SYSTEM
5. NUMERICAL EXPERIMENT
6. CONCLUSION
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