Deployment Strategies for Protected Long-Reach PON
- 30 January 2012
- journal article
- Published by Optica Publishing Group in Journal of Optical Communications and Networking
- Vol. 4 (2), 118
- https://doi.org/10.1364/jocn.4.000118
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.Keywords
This publication has 8 references indexed in Scilit:
- Long-reach optical access networks: A survey of research challenges, demonstrations, and bandwidth assignment mechanismsIEEE Communications Surveys & Tutorials, 2010
- Multi-thread polling: a dynamic bandwidth distribution scheme in long-reach PONIEEE Journal on Selected Areas in Communications, 2009
- High sensitivity APD burst-mode receiver for 10Gbit/s TDM-PON systemIEICE Electronics Express, 2007
- Protection of long-reach PON traffic through router database synchronizationJournal of Optical Networking, 2007
- Amplified gigabit PON systems [Invited]Journal of Optical Networking, 2007
- The future of fibre access systems?BT Technology Journal, 2002
- Redundancy strategies for a high splitting optically amplified passive optical networkJournal of Lightwave Technology, 2001
- 39.5 million-way WDM broadcast network employing two stages of erbium-doped fibre amplifiersElectronics Letters, 1990