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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and V. Chan
  • Vol. 1, Iss. 3 — Aug. 1, 2009
  • pp: B81–B97

Design and Analysis of Optical Flow-Switched Networks

Guy Weichenberg, Vincent W. Chan, and Muriel Médard  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 1, Issue 3, pp. B81-B97 (2009)
http://dx.doi.org/10.1364/JOCN.1.000B81


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Abstract

In our previous work [Chan, “Optical flow switching,” in BROADNETS 2006, pp. 1-8; Weichenberg, “Cost-efficient optical network architectures,” in ECOC 2006, pp. 1-2; Weichenberg, “On the throughput-cost tradeoff of multi-tiered optical network architectures,” GLOBECOM '06, pp. 1-6], we presented optical flow switching (OFS) as a key enabler of scalable future optical networks. We now address the design and analysis of OFS networks in a more comprehensive fashion. The contributions of this work, in particular, are in providing partial answers to the questions of how OFS networks can be implemented, how well they perform, and how their economics compare with those of other architectures. With respect to implementation, we present a sensible scheduling algorithm for inter-metropolitan-area-network (inter-MAN) OFS communication. Our performance study builds upon our work in IEEE J. Sel. Areas Commun., vol. 25, no. 6, pp. 84-101, 2007 and Weichenberg, “Performance analysis of optical flow switching,” presented at the IEEE International Conference on Communications, Dresden, Germany, June 14-18, 2009, and includes a comparative capacity analysis for the wide area, as well as an analytical approximation of the throughput-delay trade-off offered by OFS for inter-MAN communication. Last, with regard to the economics of OFS, we extend our previous work from ECOC 2006 and GLOBECOM '06 in carrying out an <i>optimized</i> throughput-cost comparison of OFS with other prominent candidate architectures. Our conclusions indicate that OFS offers a significant advantage over other architectures in economic scalability. In particular, for sufficiently heavy traffic, OFS handles large transactions at far lower cost than other optical network architectures. In light of the increasing importance of large transactions to communication networks, we conclude that OFS may be crucial to the future viability of optical networking.

© 2009 Optical Society of America

OCIS Codes
(060.4250) Fiber optics and optical communications : Networks
(060.4256) Fiber optics and optical communications : Networks, network optimization

ToC Category:
Architectures and Technologies for Ultra-High Capacity Switched and Routed Optical Networks

History
Original Manuscript: November 30, 2008
Revised Manuscript: April 1, 2009
Manuscript Accepted: June 6, 2009
Published: July 31, 2009

Citation
Guy Weichenberg, Vincent W. Chan, and Muriel Médard, "Design and Analysis of Optical Flow-Switched Networks," J. Opt. Commun. Netw. 1, B81-B97 (2009)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-1-3-B81


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