Distributed wavelength provisioning in WDM optical networks
Date of Issue2009
School of Electrical and Electronic Engineering
In recent years, wavelength-division multiplexing (WDM) has been gaining acceptance as an effective solution for handling the tremendous bandwidth demands. Wavelength-routed networks promise to become the next-generation optical networks by providing end-to-end transparency. With the developments of wavelength-routed networks, distributed lightpath provisioning becomes an increasingly important research topic since it provides the flexibility and high bandwidth efficiency requested by the future data communications. A critical problem in distributed lightpath provisioning, however, is the unavoidable existence of outdated link-state information: invalid routing and wavelength assignment (RWA) decisions may be made based on the stale link-state information and consequently the lightpath establishment requests may have to be rejected.
DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Nanyang Technological University