Spectrum and Waveband Assignment in Elastic Optical Waveband Networks

Elastic optical networks can increase spectral efficiency by assigning a variable amount of spectral resources to satisfy a traffic request, instead of the fixed amount of spectrum as allocated by current fixed grid optical networks. Waveband networks reduce the number of optical switch ports by aggregating lightpaths into a waveband, and switching them with a single waveband port. The authors formulate the waveband selection, spectrum allocation, and waveband assignment problem in an elastic optical waveband network that supports a fixed number of waveband sizes. They propose heuristics to select waveband sizes and study the effect of the number of waveband sizes on the number of optical switch ports.

Provided by: University of Teramo Topic: Mobility Date Added: Nov 2012 Format: PDF

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