RTSS '97 Proceedings of the 18th IEEE Real-Time Systems Symposium
A framework for service-guaranteed shared protection in WDM mesh networks
IEEE Communications Magazine
Lightpath restoration in WDM optical networks
IEEE Network: The Magazine of Global Internetworking
IP restoration vs. WDM protection: is there an optimal choice?
IEEE Network: The Magazine of Global Internetworking
Survivable scheduled service provisioning in WDM optical networks with iterative routing
Optical Switching and Networking
On surviving dual-link failures in path protected optical WDM mesh networks
Optical Switching and Networking
Optical Switching and Networking
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With the increasing popularity of bandwidth-intensive applications, network traffic has been growing exponentially. Wavelength Division Multiplexing (WDM) is a technique that can harness the huge bandwidth available in an optical fiber to satisfy the network demand. Due to the multiplicity of the connections on any single link, fault tolerance is of utmost importance in such WDM networks. Active research on providing fault tolerance in WDM networks in recent times underscores its significance. In this study, a comprehensive classification of fault-tolerant protection routing techniques is presented. A dynamic partitioning sub-path protection routing technique for routing a Fault Tolerant Path Set (FTPS) in a network is proposed. Wavelength assignment scheme to this FTPS based on backup multiplexing technique is discussed. Performance is measured in terms of blocking probability and network-wide average and maximum down-time of the failed connections. Our simulations show that this protection technique outperforms other proposed techniques.