An Efficient Approach for Lightpath Restoration in WDM Networks

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WDM is an incredibly promising technique in which multiple channels are operated along a single fiber, providing the facilities of terabit per second bandwidth. Thus, survivability of WDM networks becomes critical for the success of the next generation internet architecture. Despite that the path-based proactive restoration scheme guarantees 100% restoration as it computes a backup light path while the primary light path is being set up, this method results in additional capacity consumption. In this paper an ideal technique is proposed that modifies the active multi-backup paths method and result in a better restoration scheme. Based on theoretical analysis, the new method is shown to reduce the number of hopes as well as the restoration time.
Publisher
한국정보통신학회
Issue Date
2008-03
Language
Korean
Citation

JOURNAL OF INFORMATION AND COMMUNICATION CONVERGENCE ENGINEERING, v.6, no.1, pp.15 - 18

ISSN
1738-0235
URI
http://hdl.handle.net/10203/89730
Appears in Collection
EE-Journal Papers(저널논문)
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