Path selection methods with multiple constraints in service-guaranteed WDM networks
IEEE/ACM Transactions on Networking (TON)
On the scalability of network management information for inter-domain light-path assessment
IEEE/ACM Transactions on Networking (TON)
Distributed dynamic QoS-aware routing in WDM optical networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Distributed dynamic QoS-aware routing in WDM optical networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
Photonic Network Communications
Star-block design in two-level survivable optical networks
IEEE/ACM Transactions on Networking (TON)
Flow classification for IP differentiated service in optical hybrid switching network
ICOIN'05 Proceedings of the 2005 international conference on Information Networking: convergence in broadband and mobile networking
On integrated qos control in IP/WDM networks
ICN'05 Proceedings of the 4th international conference on Networking - Volume Part I
Grade-of-service differentiated static resource allocation schemes in WDM networks
Optical Switching and Networking
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The need to establish wavelength-routed connections in a service-differentiated fashion is becoming increasingly important due to a variety of candidate client networks (e.g., IP, SDH, ATM) and the requirements for QoS-delivery within transport layers. The multiservice operation changes the way we deal with wavelength-routed paths, as they are now being characterized by manifold properties, such as transmission quality, restoration, network management, and policies. We propose a generic approach to service-differentiated connection accommodation in wavelength-routed networks where, for the network state representation, the supplementary network graphs are defined and referred to as service-specific wavelength-resource graphs. These graphs are used for the appropriate allocation of wavelengths on concatenated physical resources building a wavelength route, along which the necessary transmission quality is achieved and the required management and surveillance functions are provided. By considering twofold wavelength routing metrics, i.e., QoS metrics (service requirements) and resource metrics (quality constraints), these graphs can yield the solution to the QoS-routing problem, i.e., the provision of service-specific guarantees under quality constraints-a feature that is still missing from the existing architectures. The numerical analysis of dynamically reconfigurable multiservice WDM networks is presented for regular network operation as well as for optical network service restoration.