A splitter location-allocation problem in designing fiber optic access networks

Youngjin Kim, Youngho Lee, Junghee Han

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

This paper deals with a physical access network design problem of fiber-to-the-home passive optical network (FTTH-PON). The design of FTTH-PON access network seeks the cost effective location of optical splitters that provide optical connectivity from central office to subscribers in a given service area. We formulate the problem as a multi-level capacitated facility location problem on a tree topology with nonlinear link cost. Dealing with the nonlinear link cost, we propose an objective function relaxation approach to obtain tight upper and lower bounds. We develop valid inequalities that enhance the lower bound and propose a local search heuristic procedure that improves the upper bound. Valid inequalities force integrality condition on the number of splitters placed at nodes. Local search heuristic improves the initial greedy solution by placing splitters on the sub-root nodes of a given tree network. Computational results demonstrate the effectiveness of the proposed solution procedures.

Original languageEnglish
Pages (from-to)425-435
Number of pages11
JournalEuropean Journal of Operational Research
Volume210
Issue number2
DOIs
Publication statusPublished - 2011 Apr 16

Fingerprint

Location-allocation
Fiber Optics
Fiber optics
Passive optical networks
Valid Inequalities
Optical Networks
Local Search
Costs
Fiber
Heuristics
Tree Networks
Facility Location Problem
Integrality
Network Design
Vertex of a graph
Computational Results
Upper and Lower Bounds
Connectivity
Objective function
Topology

Keywords

  • Access network design
  • FTTH-PON
  • Local search
  • Optimization
  • OR in telecommunications

ASJC Scopus subject areas

  • Management Science and Operations Research
  • Modelling and Simulation
  • Information Systems and Management

Cite this

A splitter location-allocation problem in designing fiber optic access networks. / Kim, Youngjin; Lee, Youngho; Han, Junghee.

In: European Journal of Operational Research, Vol. 210, No. 2, 16.04.2011, p. 425-435.

Research output: Contribution to journalArticle

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