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The New Analytical Model of Free Resources in the Limited Availability Resources

Nowak Błażej, Stasiak Maciej, Zwierzykowski Piotr

Journal of Telecommunications and Information Technology

2023

nr 4

102--107

The article presents a new analytical model for determining the probability of availability of a certain amount of well-defined free resources (e.g. a link) in a group of dedicated resources (e.g. a group of links) jointly serving a mixture of different classes of multiservice traffic. The presented method can be used to model access to resources in data centers, in particular in the software-defined networks, assuming – for reliability reasons – that the user should have access to a certain minimum number of specific separated resources. The proposed analytical model was verified by appropriate simulation experiments, which confirmed the satisfactory accuracy of the results obtained.

Properties of the Multiservice Erlang's Ideal Gradings

Hanczewski S., Kmiecik D.

Journal of Telecommunications and Information Technology

2016

nr 1

37--43

The design and optimization process of modern telecommunications networks is supported by a range of appropriate analytical models. A number of these models are based on the Erlang’s Ideal Grading (EIG) model, which is a particular case of non-full-availability groups. A possibility of the application of the EIG model results from the fact that telecommunications systems show properties and features distinctive to non-full-availability systems. No detailed studies that would decisively help determine appropriate conditions for the application of the EIG model for modeling of other non-full-availability groups, that would be models corresponding to real telecommunications systems, have been performed. Therefore, this article attempts to find an answer to the following question: what are the prerequisite conditions for the application of the EIG model and when the model can be reliably used?

Modelowanie i optymalizacja obciążeń ruchowych radiowej sieci dostępowej

Stasiak M.

Przegląd Telekomunikacyjny + Wiadomości Telekomunikacyjne

2011

nr 6

193-199

Przedstawiono metodologię modelowania i optymalizacji interfejsów radiowych sieci dostępowych 2G, 3G i 4G. Opisano podstawy modelowania interfejsów z wbudowanymi mechanizmami zarządzania ruchem. Szczególną uwagę zwrócono na problemy wynikające z wprowadzenia techniki IP do radiowej sieci dostępowej 3G i 4G.

In the paper a methodology of modeling and optimization of 2G, 3G and 4G access radio network is presented. The basics of modeling interfaces with embedded mechanisms of traffic control are described. A special attention is paid to problems concerning the introduction of IP technology to3Gand4G access radio network.