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Optical networks, with their high bandwidths and low latencies, are excellent to support Grid applications, esp. those arising in so-called eScience applications. In this paper, we consider the resulting so-called optical grids.We address the issue of resiliency against network failures and show how the Grid-specific anycast principle can be exploited in providing shared protection. Since in Grid...
With the exponential growth in the amount of Internet traffic, power consumption in the networking field has become a paramount issue. This paper focuses on the design of power-efficient multi-layer networks that comprise both the optical layer and the Internet Protocol (IP) layer, and analyzes several approaches such as power-efficient routing of lightpaths and power-efficient configuration of network...
Waveband switching (WBS) has recently attracted attention from a wide range of industry and academia groups for its practical and hierarchial concepts in handling massive lightpaths with reduced control complexity and nodal size. Previous studies demonstrate that non-uniform waveband switching, in which wavebands contain various number of wavelengths, can provide more flexibility for wavelength grouping...
Protection and restoration strategies are critical to Optical mesh networks. Two are the most usual methods of the optical path protection. In the first method, the spare capacity is usually allocated as a "dedicated" resource where the backup capacity is allocated for the sole use of the connection or link. In the second method, it is associated as a "shared" resource, where the...
This paper investigates the problem of survivable multicasting in wavelength-division-multiplexing (WDM) optical mesh networks using optical-layer mixed-sharing protection. The term ldquomixed-sharingrdquo refers to that both the schemes of ldquoself-sharingrdquo and ldquocross-sharingrdquo are implemented to protect the multicast sessions. Each link on the primary tree(s) of a multicast session engrosses...
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