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Open AccessArticle

The Optical Signal-to-Crosstalk Ratio for the MBA(N, e, g) Switching Fabric

Faculty of Computing and Telecommunications, Institute of Communication and Computer Networks, Poznan University of Technology, Polanka 3, 60-965 Poznan, Poland
Academic Editor: Federico Tramarin
Sensors 2021, 21(4), 1534; https://doi.org/10.3390/s21041534
Received: 21 December 2020 / Revised: 10 February 2021 / Accepted: 17 February 2021 / Published: 23 February 2021
(This article belongs to the Special Issue Emerging Technologies in Communications and Networking: 5G and Beyond)
The banyan-type switching networks, well known in switching theory and called the logdN switching fabrics, are composed of symmetrical switching elements of size d×d. In turn, the modified baseline architecture, called the MBA(N,e,g), is only partially built from symmetrical optical switching elements, and it is constructed mostly from asymmetrical optical switching elements. Recently, it was shown that the MBA(N,e,g) structure requires a lower number of passive as well as active optical elements than the banyan-type switching fabric of the same capacity and functionality, which makes it an attractive solution. However, the optical signal-to-crosstalk ratio for the MBA(N,e,g) was not investigated before. Therefore, in this paper, the optical signal-to-crosstalk ratio in the MBA(N,e,g) was determined. Such crosstalk influences the output signal’s quality. Thus, if such crosstalk is lower, the signal quality is better. The switching fabric proposed in the author’s previous work has lower optical signal losses than a typical Beneš and banyan-type switching networks of this same capacity and functionality, which gives better quality of transmitted optical signals at the switching node’s output. The investigated MBA(N,e,g) architecture also contains one stage fewer than banyan-type network of the same capacity, which is an essential feature from the optical switching point of view. View Full-Text
Keywords: crosstalk; MBA; optical; OSXR; switching fabric; switching network crosstalk; MBA; optical; OSXR; switching fabric; switching network
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MDPI and ACS Style

Rajewski, R. The Optical Signal-to-Crosstalk Ratio for the MBA(N, e, g) Switching Fabric . Sensors 2021, 21, 1534. https://doi.org/10.3390/s21041534

AMA Style

Rajewski R. The Optical Signal-to-Crosstalk Ratio for the MBA(N, e, g) Switching Fabric . Sensors. 2021; 21(4):1534. https://doi.org/10.3390/s21041534

Chicago/Turabian Style

Rajewski, Remigiusz. 2021. "The Optical Signal-to-Crosstalk Ratio for the MBA(N, e, g) Switching Fabric " Sensors 21, no. 4: 1534. https://doi.org/10.3390/s21041534

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