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Multipath provisioning is a survivable and resource efficient solution against increasing link failures caused by natural or man-made disasters in elastic optical datacenter networks (EODNs). Nevertheless, the conventional multipath provisioning scheme is designed only for connecting a specific node pair. Also, it is obvious that the number of node-disjoint paths between any two nodes is restricted...
A novel optical multicast tree design algorithm is proposed for elastic optical path networks; it considers signal regeneration and modulation format adaptation. The algorithm minimizes not only the number of costly regenerators needed, but also the total frequency slots necessary by optimizing the modulation formats applied. By formulating the problem as two-stage integer linear programming on an...
We propose a dynamic routing and frequency slot assignment algorithm for SLICE networks that employ distance adaptive modulation. We verify that the spectrum utilization penalty that stems from non-uniform bandwidth allocation is marginal.
We propose optical path routing and frequency slot assignment algorithms that suit elastic optical paths and the distance adaptive modulation scheme. The algorithms are proven to yield high spectrum efficiency for the distant-adaptive frequency allocation scheme.
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