Configuration of p-Cycles in WDM Networks with Partial Wavelength Conversion

Configuration of p-Cycles in WDM Networks with Partial Wavelength Conversion The p-cycle concept offers a capacity-efficient and rapid protection mechanism for mesh-restorable networks. This work investigates the configuration of span protecting p-cycles in wavelength division multiplexing (WDM) networks with limited wavelength conversion. An important point of view is the relation between the costs associated with the number of required wavelength converters, and the protection capacity-efficiency achieved. We formulate mathematical models and solve the respective optimization problems for a pan-European network as a test-case. An interesting finding is that the total number of converters required for the network as a whole can be greatly reduced, with only a small increase in spare capacity for protection by a strategy of associating wavelength converters with the access points between a pure wavelength path (WP) working layer and a set of pure WP p-cycle protection structures. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

Configuration of p-Cycles in WDM Networks with Partial Wavelength Conversion

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Publisher
Kluwer Academic Publishers
Copyright
Copyright © 2003 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:1025675204127
Publisher site
See Article on Publisher Site

Abstract

The p-cycle concept offers a capacity-efficient and rapid protection mechanism for mesh-restorable networks. This work investigates the configuration of span protecting p-cycles in wavelength division multiplexing (WDM) networks with limited wavelength conversion. An important point of view is the relation between the costs associated with the number of required wavelength converters, and the protection capacity-efficiency achieved. We formulate mathematical models and solve the respective optimization problems for a pan-European network as a test-case. An interesting finding is that the total number of converters required for the network as a whole can be greatly reduced, with only a small increase in spare capacity for protection by a strategy of associating wavelength converters with the access points between a pure wavelength path (WP) working layer and a set of pure WP p-cycle protection structures.

Journal

Photonic Network CommunicationsSpringer Journals

Published: Oct 7, 2004

References

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