Analysis For Threshold-Based Online Congestion-Aware Routing Algorithm

Alternate optical network architecture, called translucent network to the fully transparent and fully opaque network architecture is investigated. In a translucent wavelength-routed optical network, a technique called sparse regeneration is used to overcome the severe light path blocking due to signal quality degradation and wavelength contention in a fully transparent network while using a much smaller number of regenerators than in a fully opaque network. A node model and a network model that perform sparse regeneration are presented. The problem of translucent network design is addressed by proposing several regenerator placement algorithms based on different knowledge of future network traffic patterns.