Traffic grooming in WDM optical network with grooming resources at Max Connectivity nodes

In this paper, we propose Max Connectivity grooming in WDM mesh networks under static lightpath connection requests. The grooming and wavelength conversion resources are placed at the nodes having maximum connections. We propose a heuristic genetic algorithm (GA) model to solve grooming, routing and wavelength assignment. The GA algorithm has been used to optimize the cost of grooming and wavelength conversion resources. The blocking probability has been investigated under different lightpath connections. The performance of Max Connectivity grooming has been compared with other grooming policies. Our results indicate the improvement of resource utilization with minimum blocking probability.

► We propose max-connectivity grooming in WDM mesh networks.
► Grooming resources are placed at the nodes having maximum connection.
► Genetic algorithm was used to solve grooming, routing and wavelength assignment.
► Blocking probability has been investigated under static lightpath connection.
► Our method improves resource utilization with minimum blocking probability.