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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 2, Iss. 1 — Jan. 1, 2010
  • pp: 67–79

Wavelength Assignment for Concatenated ROADM Ring Networks and Switch Scale Reduction in a Concatenating Node

Kiyo Ishii, Hiroshi Hasegawa, and Ken-ichi Sato  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 2, Issue 1, pp. 67-79 (2010)
http://dx.doi.org/10.1364/JOCN.2.000067


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Abstract

We propose a wavelength assignment algorithm that offers full-mesh node connectivity of two concatenated, bidirectional ring networks. This algorithm is proved to minimize the necessary number of wavelengths. We also describe three schemes that can reduce the switch scale at the ring-concatenating nodes: separation of intra-ring and inter-ring operation, hierarchical optical path switching, and introduction of efficient protection switching. We clarify that the proposed node architectures applying the described schemes reduce the switch size by 50% to 75% compared with the conventional arrangement.

© 2010 Optical Society of America

OCIS Codes
(060.4262) Fiber optics and optical communications : Networks, ring
(060.4264) Fiber optics and optical communications : Networks, wavelength assignment

ToC Category:
Research Papers

History
Original Manuscript: June 5, 2009
Revised Manuscript: October 14, 2009
Manuscript Accepted: November 13, 2009
Published: December 24, 2009

Citation
Kiyo Ishii, Hiroshi Hasegawa, and Ken-ichi Sato, "Wavelength Assignment for Concatenated ROADM Ring Networks and Switch Scale Reduction in a Concatenating Node," J. Opt. Commun. Netw. 2, 67-79 (2010)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-2-1-67

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