Optical restoration at the wavelength-multiplex-section level in WDM mesh networks
IEEE Photonics Technology Letters
1343 - 1345
MetadataShow full item record
Karasan, E., & Goldstein, E. (1998). Optical restoration at the wavelength-multiplex section level in WDM mesh networks. Photonics Technology Letters, IEEE, 10(9), 1343-1345.
Please cite this item using this persistent URLhttp://hdl.handle.net/11693/10919
In the presence of rapidly growing demand, longhaul multiwavelength lightwave networks face the increasingly critical task of not only transporting large traffic volumes, but also of restoring them in the event of failures. This may be naturally done in two distinct ways: by rerouting individual wavelengths (wavelength-paths), or by rerouting full bundles of multiplexed wavelengths (wavelength-multiplex sections). We here evaluate the prospects for restoration at the wavelengthmultiplex-section level in national-scale long-haul wavelengthdivision-multiplexed mesh networks. The approach is found to offer the potential of substantial economic benefits, given current transponder costs. These benefits will largely vanish, however, if transponder costs decline by an order of magnitude.