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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 4, Iss. 2 — Feb. 1, 2012
  • pp: 118–129

Deployment Strategies for Protected Long-Reach PON

Marco Ruffini, Deepak Mehta, Barry O’Sullivan, Luis Quesada, Linda Doyle, and David B. Payne  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 4, Issue 2, pp. 118-129 (2012)
http://dx.doi.org/10.1364/JOCN.4.000118


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Abstract

The mass deployment of fiber access networks is probably the most important network upgrade strategy for operators over the coming decade. Next-generation networks, and in particular the long-reach passive optical network (LR-PON) solution, aim to increase the long-term economic viability and sustainability of fiber-to-the-premises (FTTP) deployment. The LR-PON solution achieves this by minimizing the number of nodes and the amount of electronic equipment required within the network. Since an LR-PON replaces the metro backhaul network, which is usually a protected part of the network, protecting the long-reach part of an LR-PON against failure becomes a critical issue that needs to be taken into account. In this paper, we introduce a novel protection mechanism which, by spreading the load generated by a node failure over the network, can significantly reduce the overall protection capacity required. We then present a practical FTTP deployment scenario based on our protected LR-PON architecture for a European country. The problem is modeled using integer linear programming, and the optimization results, obtained using a real dataset provided by a national operator, show that a small number of metro/core nodes can provide protected connection to FTTP users. By applying a detailed cost model to the outcome of the optimization, we are able to show that our LR-PON deployment strategy, which minimizes the overall protection capacity, rather than just minimizing fiber distances in the LR-PON, can significantly reduce costs.

© 2012 OSA

OCIS Codes
(060.4254) Fiber optics and optical communications : Networks, combinatorial network design
(060.4261) Fiber optics and optical communications : Networks, protection and restoration

ToC Category:
Research Papers

History
Original Manuscript: August 17, 2011
Manuscript Accepted: December 20, 2011
Published: January 30, 2012

Citation
Marco Ruffini, Deepak Mehta, Barry O’Sullivan, Luis Quesada, Linda Doyle, and David B. Payne, "Deployment Strategies for Protected Long-Reach PON," J. Opt. Commun. Netw. 4, 118-129 (2012)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-4-2-118

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