A New Control Algorithms for Simultaneous Connections Routing in Elastic Optical Networks

This paper presents novel six rearrangeable control algorithms suitable for Elastic Optical Network (EON). The proposed algorithms are based on simultaneous routing and matrix decomposition. We investigated the wavelength-space-wavelength switching fabrics, known as the WSW1, for previously developed three-stage architecture. In our proposal, we develop these algorithms for the four inputs/outputs WSW1 switching fabrics. The three-stage architecture of WSW1 was intensively considered only for a smaller number of inputs/outputs. We were able to achieve better results than previously proposed algorithms considering the same number of inputs/outputs. The switching fabric working under the proposed algorithms offers a smaller construction cost than the switching fabric controlled by previously known algorithms. This is expressed by the number of wavelength converters.