Computational experience with a difficult mixed-integer multicommodity flow problem
Mathematical Programming: Series A and B
Routing and wavelength assignment in all-optical networks
IEEE/ACM Transactions on Networking (TON)
Optical networks: a practical perspective
Optical networks: a practical perspective
Provisioning algorithms for WDM optical networks
IEEE/ACM Transactions on Networking (TON)
Routing and wavelength assignment with power considerations in optical networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
IEEE/ACM Transactions on Networking (TON)
IEEE/ACM Transactions on Networking (TON)
Advances in Transport Network Technologies: Photonic Networks, ATM, and SDH
Advances in Transport Network Technologies: Photonic Networks, ATM, and SDH
Near Optimal Design of Lightpath Routing and Wavelength Assignment in Purely Optical WDM Networks
ONDM '01 Proceedings of the IFIP TC6 Fifth Working Conference on Optical Network Design and Modeling: Towards an Optical Internet: New Visions in Optical Network Design and Modelling
Routing and wavelength assignment in optical networks
IEEE/ACM Transactions on Networking (TON)
Design of logical topologies for wavelength-routed optical networks
IEEE Journal on Selected Areas in Communications
Design of the optical path layer in multiwavelength cross-connected networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Dimensioning of survivable WDM networks
IEEE Journal on Selected Areas in Communications
Optimal design and evaluation of survivable WDM transport networks
IEEE Journal on Selected Areas in Communications
Survivable IP topology design with re-use of backup wavelength capacity
ANTS'09 Proceedings of the 3rd international conference on Advanced networks and telecommunication systems
On the efficiency of dynamic routing of connections with known duration
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Algorithms and models for backup reprovisioning in WDM networks
IEEE/ACM Transactions on Networking (TON)
Upgrading unicast nodes to multicast-capable nodes in all-optical networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Survivable IP topology design with re-use of backup wavelength capacity in optical backbone networks
Optical Switching and Networking
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Planning and optimization of WDM networks has raised much interest among the research community in the last years. Integer Linear Programming (ILP) is the most used exact method to perform this task and many studies have been published concerning this issue. Unfortunately, many works have shown that, even for small networks, the ILP formulations can easily overwhelm the capabilities of today state-of-the-art computing facilities. So in this paper we focus our attention on ILP model computational efficiency in order to provide a more effective tool in view of direct planning or other benchmarking applications. Our formulation exploits flow aggregation and consists in a new ILP formulation that allows us to reach optimal solutions with less computational effort compared to other ILP approaches. This formulation applies to multifiber mesh networks with or without wavelength conversion. After presenting the formulation we discuss the results obtained in the optimization of case-study networks.