Energy-efficient optical switching nodes based on banyan-type switching fabrics

Żal, Mariusz

doi:10.1016/j.osn.2017.12.002

Cited by 2 publications

(3 citation statements)

References 24 publications

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“…The new formula is an extension of the well-known Palm-Jacobaeus loss formula elaborated for systems with single-rate traffic. The new multi-service Palm-Jacobaeus formula opens new possibilities in the analytical modeling of communication systems with separated resources, such as multi-service switching networks [38,40,41,[56][57][58], data centers [59][60][61], and systems with traffic overflow [62][63][64][65].…”

Section: Discussionmentioning

confidence: 99%

A Palm-Jacobaeus Loss Formula for Multi-Service Systems with Separated Resources

2020

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This article presents a method to determine the blocking probability (non-availability) for strictly determined multi-service resources that belong to a group of multi-service resources. The dependencies obtained during the process correspond to the Palm-Jacobaeus formula derived for the group of resources servicing single-service traffic. The approach to determining the blocking probability is based on the determination of the availability of resources at the occupancy level of allocation units. The analytical results are compared with the obtained results of the simulation experiments for a number of selected parameters of multi-service groups of resources. The results of the present study indicate a high accuracy of the proposed solutions. The elaborated extension of the Palm-Jacobaeus formula can be used in the modeling of separated wireless resources in cellular networks.

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Section: Discussionmentioning

confidence: 99%

A Palm-Jacobaeus Loss Formula for Multi-Service Systems with Separated Resources

2020

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“…The proposed solution, however, does not take into consideration the value of traffic offered to the entire switching structure and the multiclass nature of the traffic streams of the offered traffic. The energy effectiveness of multiplane banyan switching fabrics is analyzed in [20]. Its author develops a time-effective control algorithm for a switching fabric that makes the number of active dimensions of the network dependable on the intensity of offered traffic.…”

Section: Related Workmentioning

confidence: 99%

“…Its author develops a time-effective control algorithm for a switching fabric that makes the number of active dimensions of the network dependable on the intensity of offered traffic. Similar to [19], the considerations presented in [20] are limited to an analysis of single-class traffic.…”

Section: Related Workmentioning

confidence: 99%

Modeling of Clos Switching Structures with Dynamically Variable Number of Active Switches in the Spine Stage

et al. 2020

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This article proposes a new analytical model of a switching structure using a Clos network topology. The assumption is that, in the structure under consideration, it is possible to switch off temporarily a certain number of spine switches (those in the middle stage of the switching fabric) depending on the current intensity of the offered traffic to reduce power consumption. The solution presented in the article can be used in present-day multiservice switching fabrics and in networks connecting servers in data centers. The developed analytical model allows the value of blocking probabilities for different stream classes of multiservice traffic to be evaluated in switching structures (switching fabrics) with a variable number of switches in the middle stage. The results obtained on the basis of the analytical model are compared with the results obtained as a result of relevant simulation experiments for a selected structure of the switching fabric. The study confirms high accuracy of the proposed model. This model can be used in further works to evaluate the effectiveness of energy-saving switching fabrics and the networks of data centers, as well as to construct energy-saving control algorithms that would control these switching structures, that is, algorithms that would change the topology of the switching fabric depending on changes in the offered traffic.

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Energy-efficient optical switching nodes based on banyan-type switching fabrics

Cited by 2 publications

References 24 publications

A Palm-Jacobaeus Loss Formula for Multi-Service Systems with Separated Resources

A Palm-Jacobaeus Loss Formula for Multi-Service Systems with Separated Resources

Modeling of Clos Switching Structures with Dynamically Variable Number of Active Switches in the Spine Stage

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