Provided by: Telefnica O2 Germany GmbH & Co. OHG
Date Added: Feb 2012
In Wavelength Switched Optical Networks (WSONs) with dynamic path establishment and wavelength assignment, connection requests between a source and a destination node are negotiated at light-path connection set up, where a specific wavelength is assigned for data transportation among the two nodes that may span multiple links. In order to guarantee QoS in such networks Wavelength Routing Algorithms should be appropriately developed to ensure minimum blocking while physical layer performance is guaranteed for all established light-paths. The latter is guaranteed with the introduction of appropriate Physical Layer Impairment awareness in the path establishment procedure.