Different Wavelength Assignment Techniques in All-Optical Networks Controlled by Neural Network

The use of Hopfield-like neural network in solving routing and wavelength assignment (RWA) in all-optical networks is considered. Routing assignment was performed under the constraints of minimal wavelength conversions and minimal congestion. The wavelength assignment assumes four basic methods: first-fit, least-used, most-used, and maximal sum with relative capacity loss algorithm. Different RWA methods are simulated and results are compared.