Survivable Grouped Routing Optical Networks with Dedicated Path Protection
Summary :
A novel resilient coarse granularity optical routing network architecture that adopts finely granular protection and finely granular add/drop is presented. The routing scheme defines optical pipes such that multiple optical paths can be carried by each pipe and can be dropped or added at any node on the route of a pipe. The routing scheme also makes it possible to enhance frequency utilization within pipes, by denser path packing in the frequency domain, as we recently verified. We develop a static network design algorithm that simultaneously realizes the independence of working and backup paths and pipe location optimization to efficiently carry these paths. The design algorithm first sequentially accommodates optical paths into the network, then tries to eliminate sparsely utilized fibers and iteratively optimizes frequency slot/wavelength assignment in each coarse granular pipe so as to limit the impairment caused by dropping the optical paths adjacent in the frequency domain. Numerical experiments elucidate that the number of fibers in a network can be reduced by up to 20% for 400Gbps channels without any modification in hardware.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E99-B No.7 pp.1435-1444
- Publication Date
- 2016/07/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.2015EBP3482
- Type of Manuscript
- PAPER
- Category
- Network
Authors
Hiroshi HASEGAWA
Nagoya University
Yojiro MORI
Nagoya University
Ken-ichi SATO
Nagoya University
Keyword
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Hiroshi HASEGAWA, Yojiro MORI, Ken-ichi SATO, "Survivable Grouped Routing Optical Networks with Dedicated Path Protection" in IEICE TRANSACTIONS on Communications,
vol. E99-B, no. 7, pp. 1435-1444, July 2016, doi: 10.1587/transcom.2015EBP3482.
Abstract: A novel resilient coarse granularity optical routing network architecture that adopts finely granular protection and finely granular add/drop is presented. The routing scheme defines optical pipes such that multiple optical paths can be carried by each pipe and can be dropped or added at any node on the route of a pipe. The routing scheme also makes it possible to enhance frequency utilization within pipes, by denser path packing in the frequency domain, as we recently verified. We develop a static network design algorithm that simultaneously realizes the independence of working and backup paths and pipe location optimization to efficiently carry these paths. The design algorithm first sequentially accommodates optical paths into the network, then tries to eliminate sparsely utilized fibers and iteratively optimizes frequency slot/wavelength assignment in each coarse granular pipe so as to limit the impairment caused by dropping the optical paths adjacent in the frequency domain. Numerical experiments elucidate that the number of fibers in a network can be reduced by up to 20% for 400Gbps channels without any modification in hardware.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2015EBP3482/_p
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@ARTICLE{e99-b_7_1435,
author={Hiroshi HASEGAWA, Yojiro MORI, Ken-ichi SATO, },
journal={IEICE TRANSACTIONS on Communications},
title={Survivable Grouped Routing Optical Networks with Dedicated Path Protection},
year={2016},
volume={E99-B},
number={7},
pages={1435-1444},
abstract={A novel resilient coarse granularity optical routing network architecture that adopts finely granular protection and finely granular add/drop is presented. The routing scheme defines optical pipes such that multiple optical paths can be carried by each pipe and can be dropped or added at any node on the route of a pipe. The routing scheme also makes it possible to enhance frequency utilization within pipes, by denser path packing in the frequency domain, as we recently verified. We develop a static network design algorithm that simultaneously realizes the independence of working and backup paths and pipe location optimization to efficiently carry these paths. The design algorithm first sequentially accommodates optical paths into the network, then tries to eliminate sparsely utilized fibers and iteratively optimizes frequency slot/wavelength assignment in each coarse granular pipe so as to limit the impairment caused by dropping the optical paths adjacent in the frequency domain. Numerical experiments elucidate that the number of fibers in a network can be reduced by up to 20% for 400Gbps channels without any modification in hardware.},
keywords={},
doi={10.1587/transcom.2015EBP3482},
ISSN={1745-1345},
month={July},}
Copy
TY - JOUR
TI - Survivable Grouped Routing Optical Networks with Dedicated Path Protection
T2 - IEICE TRANSACTIONS on Communications
SP - 1435
EP - 1444
AU - Hiroshi HASEGAWA
AU - Yojiro MORI
AU - Ken-ichi SATO
PY - 2016
DO - 10.1587/transcom.2015EBP3482
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E99-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2016
AB - A novel resilient coarse granularity optical routing network architecture that adopts finely granular protection and finely granular add/drop is presented. The routing scheme defines optical pipes such that multiple optical paths can be carried by each pipe and can be dropped or added at any node on the route of a pipe. The routing scheme also makes it possible to enhance frequency utilization within pipes, by denser path packing in the frequency domain, as we recently verified. We develop a static network design algorithm that simultaneously realizes the independence of working and backup paths and pipe location optimization to efficiently carry these paths. The design algorithm first sequentially accommodates optical paths into the network, then tries to eliminate sparsely utilized fibers and iteratively optimizes frequency slot/wavelength assignment in each coarse granular pipe so as to limit the impairment caused by dropping the optical paths adjacent in the frequency domain. Numerical experiments elucidate that the number of fibers in a network can be reduced by up to 20% for 400Gbps channels without any modification in hardware.
ER -
English
