Title :
Lightpath restoration in WDM optical networks
Author :
Mohan, Gurusamy ; Murthy, C. Siva Ram
Author_Institution :
Nat. Univ. of Singapore, Singapore
Abstract :
Optical networks employing wavelength-division multiplexing and wavelength routing are potential candidates for future wide area networks. Because these networks are prone to component failures and carry a large volume of traffic, maintaining a high level of service availability is an important issue. This article discusses providing tolerance capability to the optical layer in WDM-based transport networks. It presents a survey on restoration schemes available in the literature, explains the operation of these schemes, and discusses their performance.
Keywords :
distributed control; fault tolerance; optical fibre networks; protocols; telecommunication control; telecommunication network reliability; telecommunication network routing; telecommunication traffic; wavelength division multiplexing; wide area networks; WDM optical networks; WDM-based transport networks; component failures; distributed control protocol; lightpath restoration; multiplexing based routing; network design; network performance; optical layer; restoration schemes; service availability; tolerance capability; traffic; wavelength routing; wavelength-division multiplexing; wide area networks; Circuits; Intelligent networks; Optical buffering; Optical fiber networks; Optical receivers; Optical transmitters; Optical wavelength conversion; SONET; WDM networks; Wavelength division multiplexing;
Journal_Title :
Network, IEEE
