RETRACTED: Analysis of switching-element requirements in three-stage elastic optical switching fabrics

Abstract

In this paper, three switching fabrics architectures for the elastic optical networks are compared in terms of the implementation-requirements. The focus of the analysis is to analyse how the proposed switching fabric in [x], which is called the Space-Space-Wavelength (SSW), can out-perform the other known architectures of switching fabrics, namely the Wavelength-Space-Wavelength (WSW) and the Space-Wavelength-Space (SWS) in terms of number of switching elements needed to build the switching fabric. The results showed that the proposed switching fabric in X requires the minimum number of switching elements when the number of input/output fibers are low. Also, the SSW switching fabric requires a lower number of Spectrum converters (SCs) as compared to the other architectures, which make it the best in terms of costs especially when it is designed for small to medium Data Centre Networks (DCNs).