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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 5, Iss. 5 — May. 1, 2013
  • pp: 532–543

Domain-Level-Based Routing Algorithm in Multidomain WDM Optical Network

Rui Lu, Xiaoping Zheng, and Nan Hua  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 5, Issue 5, pp. 532-543 (2013)
http://dx.doi.org/10.1364/JOCN.5.000532


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Abstract

We propose a domain-level-based routing (DLR) algorithm for a multidomain WDM network with confidentiality constraints of interdomain connectivity and wavelength availability. This algorithm classifies all domains in the network into different groups with incremental levels according to the metrics that they are relative to the source and destination domains. The path computation is implemented in the ascending or descending direction of domain levels for domains within the determined domain set. The resultant route is calculated via the growth and pruning of an interdomain routing tree (IDRT). Three modes of growth and five modes of pruning are proposed to support the IDRT evolution. The DLR algorithm can be accomplished in a hierarchical path computation element (PCE) routing architecture, with the domain set determined and the IDRT calculated by the parent PCE and intradomain path computed by child PCEs. Simulation results indicate that the proposed DLR algorithm performs better than previous schemes in terms of blocking probability and resource utilization ratio, with slight signaling overhead and computation complexity increase.

© 2013 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(060.1155) Fiber optics and optical communications : All-optical networks
(060.4251) Fiber optics and optical communications : Networks, assignment and routing algorithms
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Research Papers

History
Original Manuscript: February 4, 2013
Revised Manuscript: April 6, 2013
Manuscript Accepted: April 7, 2013
Published: April 30, 2013

Citation
Rui Lu, Xiaoping Zheng, and Nan Hua, "Domain-Level-Based Routing Algorithm in Multidomain WDM Optical Network," J. Opt. Commun. Netw. 5, 532-543 (2013)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-5-5-532

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