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Load Balance RWA Algorithm using Statistical Analysis in WDM Mesh Networks

This study investigates the routing and wavelength assignment (RWA) problem in all-optical wavelength division multiplexing (WDM) mesh networks. The RWA problems can be generally classified as static lightpath establishment (SLE) or dynamic lightpath establishment (DLE). Additionally, the Load Balance RWA (LBRWA) algorithm using the concept of root-mean-square (RMS) which is one of the statistical analysis methods is presented to solve the DLE problem in our study. The proposed algorithm evenly distributes the traffic loads between lightpaths in the RWA process. Simulation results indicate that the proposed algorithm has a lower blocking probability than the Least Loaded Routing algorithm (LLR) and the Maximum Channel Path Routing algorithm (MCPR).