Performance Evaluation of the Threshold Call Admission Policy in Multi-rate Loss Systems
| Autor: | Ioannis D. Moscholios, Iskanter-Alexandros Chousainov, Panagiotis I. Panagoulias, Panagiotis G. Sarigiannidis, Michael D. Logotheti |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of Telecommunications and Information Technology, Iss 2 (2020) |
| Druh dokumentu: | article |
| ISSN: | 1509-4553 1899-8852 |
| DOI: | 10.26636/jtit.2020.142120 |
| Popis: | In this paper we consider a link, characterized by specific capacity, that services multi-rate random or quasirandom traffic. Random traffic is generated by an infinite number of traffic sources, while quasi-random traffic is generated by a finite population of traffic sources. The link is modeled as a multi-rate loss system. Handover and new calls are distinguished. New calls compete for the available bandwidth under a threshold call admission policy. In that policy, a new call of a particular service-class is not allowed to enter the system if the in-service handover and new calls of the same service-class plus the new call, exceed a predefined threshold (which can be different for each service-class). On the other hand, handover calls compete for the available bandwidth based on the complete sharing policy. We show that the steady state probabilities in the proposed models have a product form solution (PFS). The PFS leads to a convolution algorithm for accurate calculation of congestion probabilities and link utilization |
| Databáze: | Directory of Open Access Journals |
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