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In elastic optical networks, the spectrum consecutive and continuous constraints may cause the so-called spectrum fragmentation issue, degrading spectrum utilization, which is especially critical under dynamic traffic scenarios. In this paper, we propose a novel multipath de-fragmentation method which aggregates spectrum fragments instead of reconfiguring existing spectrum paths. We propose an optimization...
We investigate and quantify the benefits of multipath routing in a wide-area distributed environment which includes inter-domain routing issues. In this context, we discuss two possible multipath routing schemes and focus on the viable solution for distributed data-intensive applications with high bandwidth and delay requirements. The network topology aggregation is extended for end-to-end multipath...
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