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The goal of energy cost-aware Routing and Wavelength Assignment (RWA) is to minimize the total electricity expenditure in an optical network. While effective, just aiming to reduce the electricity consumed does not necessarily mitigate the environmental impact. A new approach is required to reduce the emissions produced as a by-product of RWA. We present a method for doing so through the use of Mixed...
While the multicast paradigm offers tremendous benefits in efficiency for transmitting data across optical networks, the loss of a destination, or resource, node can result in both the loss of data at the node and the disconnection of an entire established request. We propose an integer linear programming based approach to optimally solve this problem in elastic optical networks, and show that the...
Resources in a network are imperfect, and equipment failure can have detrimental effects on data and transmission success rates. Attempts to improve the survivability of network communications when these failures occur focus primarily on protection against the common occurrence of link failures, while nodal failure has been largely overlooked. In data-critical infrastructures, such as cloud computing...
The multicast paradigm offers tremendous benefits in efficiency for transmitting data across optical networks, allowing a single client to send information to an entire set of endpoints. A multicast request is most efficiently provisioned through the creation of a tree, with the end points, or resources, occasionally serving as branching points. This practice can lead to the source of the request...
Large-scale science applications generate great volumes of data, which are frequently stored in remote data repositories or shared with cooperating laboratories across the network through the use of advance reservation connections. The groups that utilize these data transfers would benefit from having their applications simultaneously transmit data over multiple channels in parallel. Many of today's...
Manycasting is an emerging communication paradigm which allows a single source to reach multiple destinations while providing flexibility in the selection of which destinations to connect with. Traditional wavelength division multiplexed (WDM) networks do not support the all-optical splitting of signals to multiple output ports as required by point-to-multipoint communication schemes. Previous work...
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