International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Traffic grooming has become important issue in optical networks because optical networks provide high speed data transmission. Wavelength division multiplexed switching networks are important for the future transport networks. This paper analyzes the performance of different wavelength assignment algorithms and effective placement of grooming nodes along with wavelength convertors with their effect on the blocking probability of the connection request in the optical network. The wavelength assignment is a unique feature in wavelength routed network that distinguish them from the conventional networks. The wavelength assignment algorithms are classified as first fit, random fit, most used, least used and wavelength conversion algorithms. Simulation is done for the 20 node optical ring network, because of effective placement of grooming nodes. The experimentation results indicate that the first fit, least loaded, most loaded offers least overall blocking probability rate.