Editorial Photonic Network Communications, 9:1, 5–6, 2005 2005 Springer ScienceþBusiness Media, Inc. Manufactured in The Netherlands. Suresh Subramaniam E-mail: suresh@gwu.edu Hyeong-Ah Choi E-mail: hchoi@gwu.edu The increasing capacity of optical transport net- all, i.e., by pre-empting demands belonging to works has caused considerable attention to be paid the economy class. The paper investigates sev- to the issue of protecting networks from equip- eral factors that affect the trade-off between ment and link failures. As transport network capacity and restorability. topologies evolve from rings to meshes, traditional The third paper (by J. Doucette and W. D. protection schemes become inadequate and new Grover) considers the concept of shared risk on mesh restoration techniques are necessary. Mesh individual channels or links, called SRLGs, and restoration has been an active research area in addresses several aspects of how shared-risk span recent times, and several good solutions have groups affect the protection capacity design. It appeared in the recent literature. reports that if a given percentage of all possible In this Special Issue on Mesh Restoration, we dual failure combinations incident to a common have selected six papers covering various aspects node are allowed for in the design, then nearly the of this topic. Similar http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

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Kluwer Academic Publishers
Copyright © 2005 by Springer Science+Business Media, Inc.
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
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