Distance-Adaptive Path Allocation in Elastic Optical Path Networks

Bartlomiej KOZICKI; Hidehiko TAKARA; Takafumi TANAKA; Yoshiaki SONE; Akira HIRANO; Kazushige YONENAGA; Masahiko JINNO

doi:10.1587/transcom.E94.B.1823

Joint Special Section on Opto-electronics and Communications for Future Optical Network

Distance-Adaptive Path Allocation in Elastic Optical Path Networks

Bartlomiej KOZICKI, Hidehiko TAKARA, Takafumi TANAKA, Yoshiaki SONE, Akira HIRANO, Kazushige YONENAGA, Masahiko JINNO

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Keywords: all-optical networks, fiber optics links and subsystems, adaptive modulation, quadrature-amplitude modulation, quadrature phase-shift keying

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2011 Volume E94.B Issue 7 Pages 1823-1830

DOI https://doi.org/10.1587/transcom.E94.B.1823

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Abstract

We describe a concept and realization of distance-adaptive (DA) resource allocation in spectrum-sliced elastic optical path network (SLICE). We modify the modulation format and cross-connection bandwidth of individual fixed-bit rate optical paths to optimize performance with respect to transmission distance. The shorter paths are allocated a smaller amount of resources which allows reducing the spectrum occupied by the channel. We show in calculation a reduction in required spectral resources of more than 60% when compared to the traditional traffic allocation schemes based on ITU-T grid. The concept is verified experimentally.

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