Performance evaluation of two-link multirate loss models with restricted accessibility

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Performance evaluation of two-link multirate loss models with restricted accessibility

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I.P. Keramidi, I.D. Moscholios, P.G. Sarigiannidis, M.D. Logothetis: Performance evaluation of two-link multirate loss models with restricted accessibility. In: Journal of Telecommunications and Information Technology, no. 2, pp. 61-69, 2020.

Περίληψη

We consider a two-link communication system with restricted accessibility that services Poisson arriving calls of many service-classes and propose a multirate teletraffic loss model for its analysis. In a restricted accessibility system, call blocking occurs even if available resources do exist at the time of a call's arrival. In the two-link system under consideration, each link has two thresholds (offloading and support) which express the in-service calls in a link. The offloading threshold represents the point from which a link offloads calls. The support threshold (which is lower than the offloading threshold) defines the point up to which a link supports offloaded calls. The two-link system with restricted accessibility is modeled as a loss system whose steady state probabilities do not have a product form solution. However, approximate formulas for the determination of call blocking probabilities are proposed. In addition, we also provide a corresponding analysis related to the case of quasi-random traffic (i.e. traffic generated by a finite number of users). The accuracy of all formulas is verified through simulation and is found to be quite satisfactory. © 2020 National Institute of Telecommunications. All rights reserved.

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BibTeX (Download)

@article{Keramidi202061,
title = {Performance evaluation of two-link multirate loss models with restricted accessibility},
author = { I.P. Keramidi and I.D. Moscholios and P.G. Sarigiannidis and M.D. Logothetis},
url = {https://www.researchgate.net/publication/342568028_Performance_Evaluation_of_Two-Link_Multirate_Loss_Models_with_Restricted_Accessibility},
doi = {10.26636/jtit.2020.142320},
year  = {2020},
date = {2020-01-01},
journal = {Journal of Telecommunications and Information Technology},
number = {2},
pages = {61-69},
abstract = {We consider a two-link communication system with restricted accessibility that services Poisson arriving calls of many service-classes and propose a multirate teletraffic loss model for its analysis. In a restricted accessibility system, call blocking occurs even if available resources do exist at the time of a call's arrival. In the two-link system under consideration, each link has two thresholds (offloading and support) which express the in-service calls in a link. The offloading threshold represents the point from which a link offloads calls. The support threshold (which is lower than the offloading threshold) defines the point up to which a link supports offloaded calls. The two-link system with restricted accessibility is modeled as a loss system whose steady state probabilities do not have a product form solution. However, approximate formulas for the determination of call blocking probabilities are proposed. In addition, we also provide a corresponding analysis related to the case of quasi-random traffic (i.e. traffic generated by a finite number of users). The accuracy of all formulas is verified through simulation and is found to be quite satisfactory. © 2020 National Institute of Telecommunications. All rights reserved.},
keywords = {Accessibility, blocking, Non-product form, Poisson, Quasi-random, Threshold},
pubstate = {published},
tppubtype = {article}
}
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