Title :
Design protection for WDM optical networks
Author :
Crochat, Olivier ; Le Boudec, Jean-Yves
Author_Institution :
Inst. pour les Commun. Inf. et leurs Appl., Swiss Federal Inst. of Technol., Lausanne, Switzerland
fDate :
9/1/1998 12:00:00 AM
Abstract :
With wavelength division multiplexing (WDM) networks the failure of a single link or component may cause the simultaneous failure of several optical channels, potentially making impossible restoration by rerouting directly in higher layers directly using the optical network (SDH, ATM, internal protocol (IP)). To address this, we introduce the concept of design protection, which aims at making such failure propagations impossible. We present the disjoint alternate path (DAP) algorithm which places optical channels in order to maximize design protection. We show the result on various network examples
Keywords :
optical fibre networks; telecommunication network reliability; telecommunication network routing; wavelength division multiplexing; ATM; DAP algorithm; SDH; WDM optical networks; design protection; disjoint alternate path algorithm; failure; failure propagation; higher layers; internal protocol; optical channels; optical network; restoration; routing; wavelength division multiplexing; Asynchronous transfer mode; Optical design; Optical devices; Optical fiber networks; Optical propagation; Protection; Protocols; Synchronous digital hierarchy; WDM networks; Wavelength division multiplexing;
Journal_Title :
Selected Areas in Communications, IEEE Journal on
