Kalyan Kuppuswamy

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For all-optical WDM networks that provide multiple classes of service, we present a methodology for computing approximate blocking probabilities of dynamic routing and wavelength assignment policies. Each service class is characterized by its resource requirements (number of wavelengths needed for a call) and expected call holding time (or subscription(More)
We propose an approximation method for performance analysis of large-scale optical WDM networks (comprising multiple interconnected optical WDM networks) that offer multiclass services. In such networks, lightpaths are dynamically set up and terminated between source and destination nodes in order to serve calls in various service classes, and these(More)
We present the results of a long-term monitoring campaign of the Hα line in a sample of bright OB-supergiants (O7.5–B9) that aims at detecting rotationally modulated changes potentially related to the existence of large-scale wind structures. A total of 22 objects were monitored during 36 nights spread over 6 months in 2001–2002. Coordinated broad-band(More)
For MPLS-like IP networks, we propose a novel and practically implementable optimal Joint Admission Control and Routing (JACR) mechanism for incoming trunk traffic classes with distinct QoS requirements. We base our proposed mechanism on Interior Point-based optimization techniques to solve the admission control/routing problem in large service provider(More)
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