Richard Douville

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In this paper, we present algorithms that compute the routing and wavelength assignment (RWA) for scheduled lightpath demands in a wavelength-switching mesh network without wavelength conversion functionality. Scheduled lightpath demands are connection demands for which the setup and teardown times are known in advance. We formulate separately the routing(More)
The Future Internet will see the emergence of value-added applications (e.g. telepresence, etc.) requiring Quality of Service (QoS) guarantees across multiple managed networks. Deploying mechanisms to solve technical questions entails a minimal cooperation between network operators (aka. carriers). But, this cooperation is subject to economic constraints(More)
Automatic Service framework named Scheduling, Reconfiguration and Virtualization (SRV) is developed in CARRIOCAS project to enhance existing Telecom network infrastructures for supporting grid applications sharing IT resources interconnected with ultra-high performance optical networks. From the requirements of Grid applications a classification is proposed(More)
This paper presents a testbed implementation of an inter-carrier GMPLS (Generalized Multi Protocol Label Switching) service architecture recently proposed. This architecture couples the Path Computation Element (PCE)-based control plane with a service plane managing discovery, composition and activation functions of inter-carrier service elements. The(More)
New value added services such as gaming on demand, premium VoIP and videoconferencing and cloud computing services impose strong Quality of Service guarantee requirement. However, ensure such a Quality of Service through multiple carriers, remains a challenge for Network Service Providers, particularly, when confidentiality issues and business policies are(More)