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In this paper, we present a hybrid-hierarchical optical cross-connect (hybrid-HOXC) architecture that employs a waveband cross-connect for adding/dropping or routing waveband paths and an electrical cross-connect to grooming wavelength paths. Then, we have proposed a heuristic design algorithm for the hybrid-HOXCs based optical path networks. Its effectiveness is evaluated through numerical experiments...
Hierarchical optical path networks are proposed to carry future bandwidth abundant applications cost effectively. We provide an overview of their design algorithms aiming at maximum utilization of coarse granular routing. Their network cost reduction is also demonstrated.
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