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We define and investigate the problem of multi-resource manycast over optical burst switched (OBS) networks for supporting distributed computing applications. In multi-resource manycast, each destination has multiple computing resources, and each source generates requests that require multiple resources. For a given request, the problem is to select a set(More)
—Standard advance reservation (SAR) mechanisms have been proposed as a way to provision resources for high-bandwidth applications in order to provide QoS guarantees to users; however, variations in the available bandwidth on different links over time can lead to situations in which standard advance reservations must be pushed further into the future,(More)
In this paper, we study the problem of survivable impairment-constrained virtual optical network mapping in flexible-grid optical networks (SIC-VONM). The objective is to minimize the total cost of working and backup resources, including transponders, regenerators, and shared infrastructure, for a given set of virtual optical networks, which can survive(More)
— In this paper, we discuss for the first time the issue of supporting manycasting service over optical burst-switched (OBS) networks. One of the primary challenges in providing manycasting service over OBS networks is to reduce data loss due to burst contentions. We propose two new schemes, static over-provisioning (SOP) and dynamic membership (DM), to(More)
We jointly consider problems of virtual network mapping and routing and wavelength assignment in WDM networks. Flexible virtual node mapping enabled by network virtualization achieves significant optical network resource savings compared to fixed node mapping. 1. Introduction Network virtualization decouples and isolates virtual networks from underlying(More)
This paper investigates the subject of reliability via two link-disjoint paths in mesh networks. We address the issues of how reliable two-path protection can be and how to achieve the maximum reliability. This work differs from traditional studies, such as MIN-SUM, MIN-MAX, and MIN-MIN, in that the objective in this paper is to maximize the reliability of(More)
In this paper, we study the problem of survivable impairment-aware virtual optical network mapping in flexible-grid optical networks (SIA-VONM). The objective is to minimize the total cost of transponders, regenerators, and shared infrastructure for a given set of virtual optical networks, which can survive single link failures. We first provide the problem(More)