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Distance-Adaptive Path Allocation in Elastic Optical Path Networks
Bartlomiej KOZICKI Hidehiko TAKARA Takafumi TANAKA Yoshiaki SONE Akira HIRANO Kazushige YONENAGA Masahiko JINNO
Publication
IEICE TRANSACTIONS on Communications
Vol.E94-B
No.7
pp.1823-1830 Publication Date: 2011/07/01 Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.1823 Print ISSN: 0916-8516 Type of Manuscript: Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network) Category: Keyword: all-optical networks, fiber optics links and subsystems, adaptive modulation, quadrature-amplitude modulation, quadrature phase-shift keying,
Full Text: FreePDF
Summary:
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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