The Direct Method of Effective Availability for Switching Networks with Multi-Service Traffic

Hanczewski, Sławomir; Sobieraj, Maciej; Stasiak, Michał Dominik

doi:10.1587/transcom.2015eup0009

Cited by 16 publications

(8 citation statements)

References 43 publications

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“…Studies on the application of effective availability methods were initially carried out for networks with single-channel traffic [33][34][35][36]. Then, the focus was turned to networks with multiservice traffic [32,[37][38][39].…”

Section: Related Workmentioning

confidence: 99%

Analytical modelling of multiservice switching networks with multiservice sources and resource management mechanisms

Głąbowski

Sobieraj

2017

Telecommun Syst

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This article proposes a new analytical method of determining occupancy distribution and blocking probability in multiservice switching networks with admission control mechanisms and resource management mechanisms. The proposed method is a universal one, which allows for determining blocking probability using the same model, regardless of the type of admission control mechanisms and resource management mechanisms. The versatility of the method is demonstrated in the article for two selected mechanisms, i.e. a threshold mechanism and a resource reservation mechanisms. The switching networks under consideration are offered multiservice traffic streams, generated by the so-called multiservice sources, according to Erlang, Engset and Pascal distributions. The proposed method is based on a generalised way of determining traffic characteristics for inter-stage links of switching networks with resource and call management mechanisms. Particular attention is given to determining the influence of the introduced mechanisms in outgoing links of the switching network on the traffic properties of inter-stage links of the network. The results of analytical calculations are then compared with the results obtained in digital simulation for a number of selected switching networks.

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Section: Related Workmentioning

confidence: 99%

Analytical modelling of multiservice switching networks with multiservice sources and resource management mechanisms

Głąbowski

Sobieraj

2017

Telecommun Syst

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“…Such an analysis must take into consideration the possibility of servicing a mixture of a large number of traffic streams with different bitrates and the influence of the set-up connections on differentiated service to the remaining traffic classes. The effective availability method is currently the only method to model multi-service, multi-stage switching networks, and is described in [20]- [26], [28], among others. The literature of the subject also proposes a large number of models of multi-service switching networks that greatly expand the possibilities of the application of the effective availability method.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Multi-Service Switching Networks With Multicast Connections

2022

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This article presents an analytical model of a switching network that can be used in the nodes of a large number of modern multi-service networks. The model of a multi-service threestage switching network proposed in this article has the advantage of providing the possibility to evaluate the point-to-point blocking probability for multicast connections. The information obtained in this way can then be used both at the stage of the estimation of the capacity of a new network and during the optimisation process of an existing network. In the calculations performed during the investigations, three scenarios for the fan out of multicast connections in the switching network are taken into consideration. The assumption is that the branching of a connection can occur in the first, second and the third stage of the switching network. The model proposed in the article is based on the concept of "effective" availability. The article discusses the methods for the determination of the effective availability parameter for successive connections that belong to a given multicast connection. The results of the analytical modelling are compared with the simulation data for three selected structures of multi-service switching networks to which different mixtures of multi-service BPP traffic are offered. The results of the calculations and the data provided by the simulation experiments validate and confirm high accuracy of the proposed model. This allows the model to be easily applied in practice to different environments to evaluate the capacities of the nodes in multi-service networks.

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“…Then, [35] discusses a model of MSNs with point-to-group selection and a number of attempts to set up a connection, while [36] discusses a model of MSNs with point-to-point selection. The literature also offers examples of more complex models of MSNs that take into account, for example, Erlang, Engset, and Pascal traffic streams [37], as well as call admission control mechanisms [38], [39] or overflow links [40]- [42].…”

Section: Introductionmentioning

confidence: 99%

“…Reference [39] proposes MSN models with threshold mechanisms for traffic generated by the so-called multiservice sources. Finally, [40]- [42] consider MSN models with so-called overflow links introduced to their structure.…”

Section: Introductionmentioning

confidence: 99%

Analytical Modeling of Switching Fabrics of Elastic Optical Networks

et al. 2020

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This article proposes an analytical method for determining the traffic characteristics of multi-service switching networks in elastic optical networks. The method takes into consideration the limitations of W-S-W (wavelength-space-wavelength) switching networks in the execution of multi-slot connections in line with the concept of elastic optical networks. The results obtained on the basis of the developed analytical model are compared with the results obtained from the simulation experiments for a selected structure of a switching network. The study confirms the high accuracy of the proposed model. The model can be used to optimize and evaluate the effectiveness of blocking optical switching networks. INDEX TERMS elastic optical networks, energy-aware systems, multi-service traffic, optical switches, switching network, traffic engineering.

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The Direct Method of Effective Availability for Switching Networks with Multi-Service Traffic

Cited by 16 publications

References 43 publications

Analytical modelling of multiservice switching networks with multiservice sources and resource management mechanisms

Analytical modelling of multiservice switching networks with multiservice sources and resource management mechanisms

Modeling of Multi-Service Switching Networks With Multicast Connections

Analytical Modeling of Switching Fabrics of Elastic Optical Networks

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