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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. 11 — Nov. 1, 2013
  • pp: 1227–1235

Efficient Shared Subconnection Protection in Mixed-Line-Rate Optical WDM Networks

Menglin Liu, Massimo Tornatore, and Biswanath Mukherjee  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 5, Issue 11, pp. 1227-1235 (2013)
http://dx.doi.org/10.1364/JOCN.5.001227


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Abstract

Mixed-line-rate (MLR) networks have been proposed recently to support emerging traffic demands with diverse capacity requirements. In such networks, wavelength channels of the optical paths can have a variety of capacities (10/40/100Gbps). It has been shown that this feature enables new paradigms for protection in optical wavelength-division-multiplexing (WDM) networks. In this paper, we propose to design transparent MLR networks with shared subconnection protection (SSP). SSP in an MLR network, compared with other more classical approaches (dedicated or shared protection), can also address the cost-versus-capacity trade-off in providing shared protection in a transparent network. The design problem is solved by a two-step approach that formulates part of the problem as an integer linear program (ILP). Our results show that SSP enables higher sharing of backup capacity in an MLR network in that the design cost is up to 37% less than a single-line-rate network with SSP and around 40% less than MLR with dedicated protection.

© 2013 Optical Society of America

OCIS Codes
(060.4256) Fiber optics and optical communications : Networks, network optimization
(060.4257) Fiber optics and optical communications : Networks, network survivability
(060.4258) Fiber optics and optical communications : Networks, network topology
(060.4261) Fiber optics and optical communications : Networks, protection and restoration

ToC Category:
Research Papers

History
Original Manuscript: April 16, 2013
Revised Manuscript: July 17, 2013
Manuscript Accepted: August 27, 2013
Published: October 25, 2013

Citation
Menglin Liu, Massimo Tornatore, and Biswanath Mukherjee, "Efficient Shared Subconnection Protection in Mixed-Line-Rate Optical WDM Networks," J. Opt. Commun. Netw. 5, 1227-1235 (2013)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-5-11-1227


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References

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