Deployment Strategies for Protected Long-Reach PON
Citation:
Marco Ruffini, Deepak Mehta, Barry O'Sullivan, Luis Quesada, Linda Doyle, David B. Payne, Deployment Strategies for Protected Long-Reach PON, IEEE/OSA Journal of Optical Communications and Networking, 4, 2, 2012, 118 - 129Download Item:
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Abstract:
The mass deployment of ?bre 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 long term economic viability and sustainability of Fibre-To-The-Premises (FTTP) deployment. The LR-PON solution achieves this by minimising the number of nodes and the amount of electronic equipment required within the network. Since a LR-PON replaces the metro backhaul network, which is usually a protected part of the network, protecting the long reach part of LRPON network against failures becomes a critical issue that needs to be taken into account. In this paper we introduce a novel protection mechanism that, by spreading the load generated by a node failure over the network, can signi?cantly 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 optimisation 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 optimisation we are able to show that our LR-PON deployment strategy that minimises the overall protection capacity, rather than just minimising ?bre distances in the LR-PON, can signi?cantly reduce costs.
Sponsor
Grant Number
Science Foundation Ireland (SFI)
10/CE/I1853
Author's Homepage:
http://people.tcd.ie/ruffinmDescription:
PUBLISHED
Author: Ruffini, Marco
Type of material:
Journal ArticleCollections:
Series/Report no:
IEEE/OSA Journal of Optical Communications and Networking4
2
Availability:
Full text availableKeywords:
Protected Long-Reach, network protection and resiliency, Optical networks, network optimizationSubject (TCD):
Smart & Sustainable PlanetDOI:
http://dx.doi.org/10.1364/jocn.4.000118Licences: