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Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks
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Summary :
A novel coarse and fine hybrid granular routing network architecture is proposed. Virtual direct links (VDLs) defined by the coarse granular routing to bridge distant node pairs, and routing via VDL mitigate the spectrum narrowing caused by optical filtering at wavelength-selective switches in ROADM (Reconfigurable Optical Add/Drop Multiplexing) nodes. The impairment mitigation yields denser channel accommodation in the frequency domain, which substantially increases fiber spectral efficiency. The proposed network simultaneously utilizes fine granular optical path level routing so that optical paths can be effectively accommodated in VDLs. The newly developed network design algorithm presented in this paper effectively implements routing and spectrum assignment to paths in addition to optimizing VDL establishment and path accommodation to VDLs. The effectiveness of the proposed architecture is demonstrated through both numerical and experimental evaluations; the number of fibers necessary in a network, and the spectrum bandwidth and hop count product are, respectively, reduced by up to 18% and increased by up to 111%.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E103-B No.2 pp.118-129
- Publication Date
- 2020/02/01
- Publicized
- 2019/07/26
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2019EBP3026
- Type of Manuscript
- PAPER
- Category
- Fiber-Optic Transmission for Communications
Authors
Yusaku ITO
Nagoya University
Yojiro MORI
Nagoya University
Hiroshi HASEGAWA
Nagoya University
Ken-ichi SATO
Nagoya University
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Yusaku ITO, Yojiro MORI, Hiroshi HASEGAWA, Ken-ichi SATO, "Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks" in IEICE TRANSACTIONS on Communications,
vol. E103-B, no. 2, pp. 118-129, February 2020, doi: 10.1587/transcom.2019EBP3026.
Abstract: A novel coarse and fine hybrid granular routing network architecture is proposed. Virtual direct links (VDLs) defined by the coarse granular routing to bridge distant node pairs, and routing via VDL mitigate the spectrum narrowing caused by optical filtering at wavelength-selective switches in ROADM (Reconfigurable Optical Add/Drop Multiplexing) nodes. The impairment mitigation yields denser channel accommodation in the frequency domain, which substantially increases fiber spectral efficiency. The proposed network simultaneously utilizes fine granular optical path level routing so that optical paths can be effectively accommodated in VDLs. The newly developed network design algorithm presented in this paper effectively implements routing and spectrum assignment to paths in addition to optimizing VDL establishment and path accommodation to VDLs. The effectiveness of the proposed architecture is demonstrated through both numerical and experimental evaluations; the number of fibers necessary in a network, and the spectrum bandwidth and hop count product are, respectively, reduced by up to 18% and increased by up to 111%.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019EBP3026/_p
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@ARTICLE{e103-b_2_118,
author={Yusaku ITO, Yojiro MORI, Hiroshi HASEGAWA, Ken-ichi SATO, },
journal={IEICE TRANSACTIONS on Communications},
title={Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks},
year={2020},
volume={E103-B},
number={2},
pages={118-129},
abstract={A novel coarse and fine hybrid granular routing network architecture is proposed. Virtual direct links (VDLs) defined by the coarse granular routing to bridge distant node pairs, and routing via VDL mitigate the spectrum narrowing caused by optical filtering at wavelength-selective switches in ROADM (Reconfigurable Optical Add/Drop Multiplexing) nodes. The impairment mitigation yields denser channel accommodation in the frequency domain, which substantially increases fiber spectral efficiency. The proposed network simultaneously utilizes fine granular optical path level routing so that optical paths can be effectively accommodated in VDLs. The newly developed network design algorithm presented in this paper effectively implements routing and spectrum assignment to paths in addition to optimizing VDL establishment and path accommodation to VDLs. The effectiveness of the proposed architecture is demonstrated through both numerical and experimental evaluations; the number of fibers necessary in a network, and the spectrum bandwidth and hop count product are, respectively, reduced by up to 18% and increased by up to 111%.},
keywords={},
doi={10.1587/transcom.2019EBP3026},
ISSN={1745-1345},
month={February},}
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TY - JOUR
TI - Architecture and Design of Coarse/Fine Hybrid Granular Routing Optical Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 118
EP - 129
AU - Yusaku ITO
AU - Yojiro MORI
AU - Hiroshi HASEGAWA
AU - Ken-ichi SATO
PY - 2020
DO - 10.1587/transcom.2019EBP3026
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E103-B
IS - 2
JA - IEICE TRANSACTIONS on Communications
Y1 - February 2020
AB - A novel coarse and fine hybrid granular routing network architecture is proposed. Virtual direct links (VDLs) defined by the coarse granular routing to bridge distant node pairs, and routing via VDL mitigate the spectrum narrowing caused by optical filtering at wavelength-selective switches in ROADM (Reconfigurable Optical Add/Drop Multiplexing) nodes. The impairment mitigation yields denser channel accommodation in the frequency domain, which substantially increases fiber spectral efficiency. The proposed network simultaneously utilizes fine granular optical path level routing so that optical paths can be effectively accommodated in VDLs. The newly developed network design algorithm presented in this paper effectively implements routing and spectrum assignment to paths in addition to optimizing VDL establishment and path accommodation to VDLs. The effectiveness of the proposed architecture is demonstrated through both numerical and experimental evaluations; the number of fibers necessary in a network, and the spectrum bandwidth and hop count product are, respectively, reduced by up to 18% and increased by up to 111%.
ER -
English
