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All optical switching has been proposed as a candidate to allow high capacity networking in the future. Currently, Optical Circuit Switching has been widely deployed, although this approach is potentially bandwidth-inefficient for small granularity flows and needs relatively long set-up times. Research is being done into Optical Packet Switching (OPS) and Optical Burst Switching (OBS), but these kinds...
Deflection routing is a much-studied contention resolution technique in the context of Optical Burst/Packet Switching networks, as it promises to improve burst blocking performance and may reduce or even eliminate buffer requirements. An OBS-based Grid is frequently based on anycast routing, which holds even greater potential to use the deflection technique for successful delivery of Grid jobs. As...
A fundamental issue in all-optical switching is to offer efficient and cost-effective transport services for a wide range of bandwidth granularities. This paper presents multi-granular optical cross-connect (MG-OXC) architectures that combine slow (ms regime) and fast (ns regime) switch elements, in order to support optical circuit switching (OCS), optical burst switching (OBS), and even optical packet...
We present an ILP model for dimensioning optical networks that support wavelength and sub-wavelength switching. Results indicate significant reductions in cost and node-complexity with such multi-granular networks.
To cope with ever-increasing traffic demands in transport networks, all-optical switching is currently perceived as a potential solution to remove bottlenecks caused by optoelectronic conversions. An effective realization of this concept must support a wide range of traffic patterns, while remaining feasible to construct and deploy both in an economical and practical sense. In this paper, we propose...
To cope with ever-increasing traffic demands in transport networks, all-optical switching is currently perceived as a solution to remove bottlenecks imposed by O/E/O conversions during data transfer. The successful realization of this concept is in large part dependent on the optical switch, which must support a wide range of traffic patterns, while remaining feasible to build both in an economical...
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