Highly spectrally efficient metro networks that adopt fiber-level granular routing on overlaid line-/ring-shaped virtual topologies
Paper in proceeding, 2020

We propose a cost-effective metro network architecture with fiber-granular routing and path-granular add/drop operations together with its ILP-based design algorithm. The proposal alleviates the impact of filtering impairment while using already deployed OXC/ROADM nodes. Numerical simulations on several real-world metro topologies verify that it increases the spectral efficiency compared to the ideal method for DWDM networks.

Photonic network

spectrum narrowing

Ultra-Dense WDM network


Ryuta Shiraki

Nagoya University

Yojiro Mori

Nagoya University

Hiroshi Hasegawa

Nagoya University

Ken Ichi Sato

National Institute of Advanced Industrial Science and Technology (AIST)

Paolo Monti

Chalmers, Electrical Engineering, Communication, Antennas and Optical Networks

Proceedings of SPIE - The International Society for Optical Engineering

0277786X (ISSN) 1996756X (eISSN)

Vol. 11308 1130809

Metro and Data Center Optical Networks and Short-Reach Links III 2020
San Francisco, USA,

Subject Categories

Computer Engineering


Communication Systems



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Latest update

4/9/2020 4