Allocation of Wavelengths in WDM Networks Considering Residual Dispersion under the Concept of Smart Cities

摘要

Internet traffic, given the applications of smart cities, is constantly growing and with it the applications of the type unicast/multicast with different requirements Quality of Service (QoS). S/G Light-tree is an architecture of nodes transport networks allowing optimal routing or traffic handling unicast/multicast using the concept of Traffic Grooming in an all-optical environment. The chromatic dispersion phenomenon deforms the transmitted pulses in an optical fiber and the effect depends on the wavelength used in the transmission and must be considered in allocation models wavelength. In this article, we propose a model and heuristic that allows assigning low dispersion wavelengths, maintaining greater available capacity, assigning the required quality of service and minimizing the amount of equipment required in each node of an all-optical network.