Issues for routing in the optical layer
IEEE Communications Magazine
Computer Networks: The International Journal of Computer and Telecommunications Networking
ONDM'09 Proceedings of the 13th international conference on Optical Network Design and Modeling
Offline routing and wavelength assignment in transparent WDM networks
IEEE/ACM Transactions on Networking (TON)
On the dimensioning of WDM optical networks with impairment-aware regeneration
IEEE/ACM Transactions on Networking (TON)
A distributed impairment aware QoS framework for all-optical networks
Optical Switching and Networking
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We investigate new routing and wavelength assignment algorithms considering as constraints physical impairments that arise in transparent networks. Accounting both linear and nonlinear impairments we propose a scheme that integrates the routing and wavelength assignment to achieve an optimal combination of physical and networking performance. Through simulations of a typical long haul network the improvement achieved using the proposed approach compared to conventional RWA algorithms (i.e shortest path and first fit) is demonstrated and the significance of impairment aware routing and wavelength assignment schemes is recognized.