Long-Term Planning of WDM Networks: A Comparison between Single-Period and Multi-Period Techniques

Long-Term Planning of WDM Networks: A Comparison between Single-Period and Multi-Period Techniques This paper studies the long-term planning (e.g. a planning horizon of 2 to 5 years) of survivable WDM networks. The problem is formulated as a multi-period model that combines network topology and capacity expansion. The ability to determine network expansion schedules of this type becomes increasingly important to the telecommunications industry and to its customers. Two inherently different solution methods are presented: a sequential single-period approach, which designs the networks for every time period separately in chronological order, and an integrated multi-period approach, which considers all time periods at once. For each of these approaches, different network design cost models can be applied. Extensive simulations on a wide range of problem instances are carried out, to measure the influence of the applied network design cost model and to assess the cost savings that can be expected by opting for a multi-period planning approach instead of a sequential network design method. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

Long-Term Planning of WDM Networks: A Comparison between Single-Period and Multi-Period Techniques

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 1999 by Kluwer Academic Publishers
Subject
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
ISSN
1387-974X
eISSN
1572-8188
D.O.I.
10.1023/A:1010030918159
Publisher site
See Article on Publisher Site

Abstract

This paper studies the long-term planning (e.g. a planning horizon of 2 to 5 years) of survivable WDM networks. The problem is formulated as a multi-period model that combines network topology and capacity expansion. The ability to determine network expansion schedules of this type becomes increasingly important to the telecommunications industry and to its customers. Two inherently different solution methods are presented: a sequential single-period approach, which designs the networks for every time period separately in chronological order, and an integrated multi-period approach, which considers all time periods at once. For each of these approaches, different network design cost models can be applied. Extensive simulations on a wide range of problem instances are carried out, to measure the influence of the applied network design cost model and to assess the cost savings that can be expected by opting for a multi-period planning approach instead of a sequential network design method.

Journal

Photonic Network CommunicationsSpringer Journals

Published: Oct 19, 2004

References

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