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Constraint-Based Local Search for Finding Node-Disjoint Bounded-Paths in Optical Access Networks

  • Alejandro Arbelaez
  • Deepak Mehta
  • Barry O’Sullivan
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9255)

Abstract

Mass deployment of fibre access networks is without doubt one of the goals of many network operators around the globe. The Passive Optical Network has been proposed as a solution to help deliver mass deployment of fibre-to-the-home (FTTH), by reducing the cost per customer compared to current commercially available technologies. A major failure in the access network (e.g., fibre cut, amplifier failure, or other equipment can fail) might affect tens of thousands of customers. Therefore, protecting the network from such failures is one of the most important requirements in the deployment of FTTH solutions. In this paper we use a constraint-based local search approach to design reliable passive optical networks via node-disjoint paths whereby each customer is protected against any one node or link failure. We experiment with a set of very large size real-world networks corresponding to Ireland, Italy and the UK and demonstrate the tradeoff between cost and resiliency.

Keywords

Local Search Algorithm Link Failure Disjoint Path Passive Optical Network Minimum Span Tree Problem 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Alejandro Arbelaez
    • 1
  • Deepak Mehta
    • 1
  • Barry O’Sullivan
    • 1
  1. 1.Insight Centre for Data AnalyticsUniversity College CorkCorkIreland

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