A novel recursive shared segment protection algorithm in survivable WDM networks
Journal of Network and Computer Applications
Traffic recovery time constrained shared sub-path protection algorithm in survivable WDM networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Network survivability is a key issue in reliable WDMoptical network design to assure the service guarantee tocustomers. Rather than conventional connection link/path/sub-path based protection switching scheme, in thispaper we propose protection group (sub-mesh)-basedapproach to fast recover traffic from single/multiplelink/node failures. By the group-based spare resourcediscovery and exploitation, the local channel utilizationof network will be maximized and hence enhance theoverall quality of protection. The simulation results showthat the local resource utilization and restoration timeare efficient under heavy load in the dynamic trafficenvironment over dense mesh backbone networks.