Some principles for designing a wide-area WDM optical network
IEEE/ACM Transactions on Networking (TON)
Distributed network control for optical networks
IEEE/ACM Transactions on Networking (TON)
Provisioning algorithms for WDM optical networks
IEEE/ACM Transactions on Networking (TON)
Fast Approximation Algorithms for the Knapsack and Sum of Subset Problems
Journal of the ACM (JACM)
IEEE/ACM Transactions on Networking (TON)
Multiwavelength lightwave networks for computer communication
IEEE Communications Magazine
Design of logical topologies for wavelength-routed optical networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Lightpath restoration in WDM optical networks
IEEE Network: The Magazine of Global Internetworking
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Wavelength-division multiplexed networks using wavelength-routing are considered to be potential candidates for the next generation of wide-area backbone networks. In these networks, messages are carried in all-optical form using lightpaths. ATM is a widespread architecture and it is natural to extend the two-level connection architecture of ATM to the three-level connection architecture of optical-ATM networks. The three-level connection architecture is realized by providing a LP network under the virtual path network, to meet the bandwidth requirements of the virtual paths (VPs). Fault handling in these networks is of prime importance due to the nature and volume of traffic that these networks carry. Faults can be handled by rerouting the failed LPs in such a way that, failures are transparent to the VPs at the upper layer. Our work aims at designing a LP network with fault tolerance capability for an ATM network with an underlying optical layer. The primary network is designed with the objective of minimizing the number of fibers. The restoration network is designed to survive single link failures with the objective of minimizing the number of fibers. We develop design methods based on heuristics, and verify their effectiveness through simulation experiments.