Priority-based wavelength assignment algorithm in restorable WDM transport networks

WDM network will play important role in future backbone networks. It is necessary that WDM networks have the capability against component failure and support multi-priority. Two priority-based wavelength assignment methods, wavelength number method and assignment quota method, are proposed. We study network performance when these wavelength assignment methods are used for survivable WDM network in dynamic traffic pattern. Contents include influences on blocking probability from traffic load, total number of available wavelength channels per link, and the number of fibers per link. Simulation results are also given in the paper.