Routing and wavelength assignment in all-optical networks
IEEE/ACM Transactions on Networking (TON)
All-optical networks with sparse wavelength conversion
IEEE/ACM Transactions on Networking (TON)
Adaptive wavelength routing in all-optical networks
IEEE/ACM Transactions on Networking (TON)
Efficient algorithms for routing dependable connections in WDM optical networks
IEEE/ACM Transactions on Networking (TON)
Survivable Networks: Algorithms for Diverse Routing
Survivable Networks: Algorithms for Diverse Routing
Performance of Alternate Routing Methods in All--Optical Switching Networks
INFOCOM '97 Proceedings of the INFOCOM '97. Sixteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Driving the Information Revolution
Rule-based topology advertisement supporting generalized protection
ONDM'09 Proceedings of the 13th international conference on Optical Network Design and Modeling
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Single- and multiple-link failure resilience are of critical importance in survivable wavelength division multiplexed (WDM) optical network design. Networks are not made up simply of logical links, but also of links that are physically routed together or share a common node. Links that share a common physical duct are known in literature as shared risk link groups (SRLGs), and their impact on network design is widely studied.This paper presents a complete survivability approach for WDM optical network design known as sub-graph fault tolerance. Sub-graphs are created by removing any combination of components in the network to accommodate specific fault scenarios. Connections in the network are accepted if they can be routed in all predetermined sub-graphs. In this manner, protection against 100% of all multiple-and single-link failure scenarios designated by the designer is achieved, and heuristic best-effort protection is provided against subsequent or simultaneous link failures for which the network is not specifically designed.