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In this paper we consider the traffic Grooming, Routing and Wavelength Assignment problem in optical WDM mesh networks. This is a network design problem which consists in grooming the demands in lightpaths, assigning a wavelength to each lightpath and routing the traffic on these lightpaths so that the total cost is minimum. We first give an Integer Linear Programming formulation for the problem....
In this paper, we give an integer linear programming formulation and present a heuristic algorithm to minimize the worst-case tuning ROADM range in a bi-directional ring network to support all-to-all traffic.
In this paper, we consider a unidirectional ring network with limited reconfigurability and take up the problem of supporting all-to-all traffic - while minimizing the worst-case wavelength range of the reconfigurable optical add drop multiplexers (ROADMs). ROADMs can be limited in range (L-ROADMs) or have full range (F-ROADMs). The cost of such a network is dominated by the number of wavelengths...
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