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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 3, Iss. 4 — Apr. 1, 2011
  • pp: 335–346

A Torus-Based 4-Way Fault-Tolerant Backbone Network Architecture for Avionic WDM LANs

Dexiang Wang and Janise Y. McNair  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 3, Issue 4, pp. 335-346 (2011)
http://dx.doi.org/10.1364/JOCN.3.000335


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Abstract

In this paper, we leverage the torus topology to design a wavelength division multiplexing (WDM) backbone network for operation in hazardous avionic environments. The proposed WDM local area network offers efficient data delivery and fast fault recovery via establishing four non-overlapping lightpaths for any source–destination pair. First, we describe a torus-based architecture and propose an efficient non-overlapping lightpath setup algorithm: FOLD (Four-way Optimal Disjoint Routing). The algorithm is proved to achieve optimal link utilization. Second, based on the proposed lightpath setup algorithm, a wavelength allocation and reuse (WAR) scheme enforcing wavelength continuity is proposed to minimize the wavelength utilization for all-to-all communication. An analytical calculation on wavelength utilization shows that the proposed WAR performs very close to an ideal wavelength assignment scheme without wavelength continuity being enforced. Lastly, the probabilistic and capacity analysis demonstrates vast reliability improvement via applying the proposed network architecture in terms of network-failure-induced impact on connection reliability and network capacity degradation.

© 2011 OSA

OCIS Codes
(060.1155) Fiber optics and optical communications : All-optical networks
(060.4251) Fiber optics and optical communications : Networks, assignment and routing algorithms
(060.4257) Fiber optics and optical communications : Networks, network survivability

ToC Category:
Research Papers

History
Original Manuscript: September 14, 2010
Revised Manuscript: January 27, 2011
Manuscript Accepted: February 18, 2011
Published: March 31, 2011

Citation
Dexiang Wang and Janise Y. McNair, "A Torus-Based 4-Way Fault-Tolerant Backbone Network Architecture for Avionic WDM LANs," J. Opt. Commun. Netw. 3, 335-346 (2011)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-3-4-335


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References

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