Toward jointly optimized design of failure-independent path-protecting p-cycle networks
| Autor: | Wayne D. Grover, Dimitri Baloukov, Adil Kodian |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Engineering
Computer Networks and Communications Path protection business.industry Concatenation Condensed Matter Physics Atomic and Molecular Physics and Optics Computer Science Applications Network planning and design Optical path Spare part Path (graph theory) Optical networking Electrical and Electronic Engineering Routing (electronic design automation) business Computer network |
| Zdroj: | Journal of Optical Networking. 7:62 |
| ISSN: | 1536-5379 |
| DOI: | 10.1364/jon.7.000062 |
| Popis: | Failure-independent path-protecting (FIPP) p-cycles are an extension of the basic concept of p-cycles to provide an end-to-end path-protecting mechanism. Initial work showed that FIPP p-cycle networks are comparable in capacity efficiency to existing methods of shared-backup path protection but employ fully pre-cross-connected protection paths. This makes FIPP p-cycles as fast as conventional span protecting p-cycles, and much faster than shared-backup path protection where spare channels must be assembled into protection paths in real time following a failure. The property of full pre-cross-connection of the protection structures is also an attractive advantage in transparent optical networking, where on-the-fly transparent concatenation of wavelength channels to form protection paths may not provide an adequate a priori assurance of optical path integrity. Thus, there are several motivations for interest in this new concept. Prior work on this topic has, however, considered only the design of FIPP p-cycle networks where the working demands are routed before decisions are made about the protection structures. Here we consider the problem of jointly optimized FIPP p-cycle network design and provide some insights, guidelines, and a semiheuristic procedure for coordinated routing of working demands and the generation of the protection structures. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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