A Dynamic Routing Equivalent Algorithm and Simulation of WDM Optical Networks

In the paper,we propose a dynamic routing and wavelength assignment equivalent algorithm for WDM optical networks.It can be applicable to these networks with heterogeneous and partial or full wavelength conversion capability in each node.We adopt a wavelength graph technique and scheme of adding virtual source node and destine node.By doing so,the multi-wavelength optical network is transformed to equivalent single-wavelength optical network and the problem of routing and wavelength assignment is changed to the routing problem of equivalent single-wave optical network.In the end,we use the shortest path algorithm for simulation of dynamic routing and wavelength assignment.