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The inter-domain routing and wavelength assignment problem in Wavelength-switched optical network (WSON) is researched. A Parallel Ant Colony based Inter-domain Routing Optimization Algorithm is proposed to obtain the routing of global optimization. Compared with the previous approaches, the proposed algorithm can achieve the routing optimization under multi-constraint condition, and can acquire the...
The routing and wavelength assignment optimization problem in multi-domain WSON is researched. An inter-domain routing optimization algorithm based on improved ant colony algorithm is proposed. The proposed algorithm can achieve the routing optimization under multi-constraint condition, and can acquire the working and backup paths at one time for network survivability as well. Simulation experiments...
The hierarchical routing and wavelength assignment problem in Automatic Switched Optical Network (ASON) is researched. Based on our analysis, three adaptive algorithms called MLLR (Multi-Layer Least Loaded Routing Algorithm), WMLCR (Wavelength-graph-based Multi-Layer Least Congestion Routing Algorithm) and BMR (Backtracking-based Multi-Layer Routing Algorithm) are proposed. A platform named AHORSP...
A cost-effective capacity planning method of WDM networks is proposed for increase of traffic load. An improved costbased ant colony algorithm is presented from pheromone increase and update mechanisms to solve the planning problem. Simulation results show the applicability of our planning method.
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