supported in part by the National "863" Program of China (Nos. 2009AA01z255 and 2009AA01A345);the National "973" Program of China (No.2007CB310705);the National Natural Science Foundation of China (No. 60932004);the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 200800130001)
An optical signal-to-noise ratio (OSNR) aware lightpath provisioning mechanism (OSNR-LPM) is proposed for distributed optical networks. This OSNR-LPM takes the OSNR value of the lightwave along the lightpath into ...