Aspects of blocking on time-varying tandem queueing network
Most real-world service systems are susceptible to queue capacity constraints, leading to a blockage of entities. Several blocking mechanisms can be implemented when capacity constraints influence the flow of entities through the system. This study investigates the comparative performance of blocki...
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Croatian Operational Research Society
2025-01-01
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| Series: | Croatian Operational Research Review |
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| Online Access: | https://hrcak.srce.hr/file/476878 |
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| author | Anjale Ramesh M. Manoharan |
| author_facet | Anjale Ramesh M. Manoharan |
| author_sort | Anjale Ramesh |
| collection | DOAJ |
| description | Most real-world service systems are susceptible to queue capacity constraints, leading to a blockage of entities. Several blocking mechanisms can be implemented when capacity constraints influence the flow of entities through the system. This study investigates the comparative performance of blocking-after-service (BAS) and blocking-before-service (BBS) mechanisms by modelling a hospital emergency department with a finite capacity queue. The model is based on a two-station tandem network with finite capacity on the intermediate queue, and we developed transient performance measures for the system in both mechanisms. Using a numerical approach, we highlight how these mechanisms influence the time-varying number of patients and the virtual workload in the system. Our results demonstrate that the BAS mechanism slightly outperforms the BBS mechanism in reducing unwanted congestion. |
| format | Article |
| id | doaj-art-236b80fec85a4420a1883e5fd9701b5d |
| institution | Matheson Library |
| issn | 1848-0225 1848-9931 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Croatian Operational Research Society |
| record_format | Article |
| series | Croatian Operational Research Review |
| spelling | doaj-art-236b80fec85a4420a1883e5fd9701b5d2025-07-11T11:06:57ZengCroatian Operational Research SocietyCroatian Operational Research Review1848-02251848-99312025-01-0116219120310.17535/crorr.2025.0016Aspects of blocking on time-varying tandem queueing networkAnjale Ramesh0M. Manoharan1Department of Statistics, University of Calicut, Kerala-673 635, IndiaDepartment of Statistics, University of Calicut, Kerala-673 635, IndiaMost real-world service systems are susceptible to queue capacity constraints, leading to a blockage of entities. Several blocking mechanisms can be implemented when capacity constraints influence the flow of entities through the system. This study investigates the comparative performance of blocking-after-service (BAS) and blocking-before-service (BBS) mechanisms by modelling a hospital emergency department with a finite capacity queue. The model is based on a two-station tandem network with finite capacity on the intermediate queue, and we developed transient performance measures for the system in both mechanisms. Using a numerical approach, we highlight how these mechanisms influence the time-varying number of patients and the virtual workload in the system. Our results demonstrate that the BAS mechanism slightly outperforms the BBS mechanism in reducing unwanted congestion.https://hrcak.srce.hr/file/476878blocking-after-service (BAS)blocking-before-service (BBS)tandem queuestransient analysisvirtual workload |
| spellingShingle | Anjale Ramesh M. Manoharan Aspects of blocking on time-varying tandem queueing network Croatian Operational Research Review blocking-after-service (BAS) blocking-before-service (BBS) tandem queues transient analysis virtual workload |
| title | Aspects of blocking on time-varying tandem queueing network |
| title_full | Aspects of blocking on time-varying tandem queueing network |
| title_fullStr | Aspects of blocking on time-varying tandem queueing network |
| title_full_unstemmed | Aspects of blocking on time-varying tandem queueing network |
| title_short | Aspects of blocking on time-varying tandem queueing network |
| title_sort | aspects of blocking on time varying tandem queueing network |
| topic | blocking-after-service (BAS) blocking-before-service (BBS) tandem queues transient analysis virtual workload |
| url | https://hrcak.srce.hr/file/476878 |
| work_keys_str_mv | AT anjaleramesh aspectsofblockingontimevaryingtandemqueueingnetwork AT mmanoharan aspectsofblockingontimevaryingtandemqueueingnetwork |