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Hardware scale analysis shows that flexible waveband routing OXCs can substantially reduce the numbers of WSSs and EDFAs. Transmission experiments on developed prototype that adopts monolithic arrayed DC type matrix switches verify their technical feasibility.
We propose highly reliable and cost-effective large-scale OXC architecture. By placing protection WSSs in each subsystem, the proposed OXC can substantially improve the total system reliability cost-effectively. The annual failure time of a network can be greatly reduced with a small number of additional WSSs.
We propose a highly scalable and compact ROADM architecture that uses multiple MxN WSSs as subsystems. The effectiveness of our scheme is verified via a hardware-cost assessment, routing-performance simulations, and transmission experiments for the first time.
The multi-granular optical-path architecture is a viable approach to creating large-scale optical metro and core networks. We conduct transmission and distributed signaling experiments that emulate the proposed architecture and confirm its technical feasibility.
This paper describes an inter-domain path control system for large-scale photonic networks, especially considering applicability to multiple carrier domain networks. The overall architecture of multi-domain optical network control system is reviewed. Our system employs PCE (Path Computation Element) based routing model and utilizes maximum flow information in path computation and Path Key scheme in...
We propose an inter-domain path routing algorithm for multi-domain photonic networks. The proposed algorithm introduces a step-wise weighting technique and utilizes averaged link load information of each domain and that of a link set between each adjacent domain pair. Numerical experiments demonstrate that the proposed algorithm outperforms a conventional method in terms of blocking probability and...
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