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Link-level and node-level blocking in photonic networks has been intensively investigated for several decades and the C/D/C approach to OXCs/ROADMs is often emphasized. However, this understanding will have to change in the future large traffic environment. We herein elucidate that exploiting node-level blocking can yield cost-effective large-capacity wavelength routing networks in the near future. We analyze the impact of link-level and node-level blocking in terms of traffic demand and assess the fiber utilization and the amount of hardware needed to develop OXCs/ROADMs, where the necessary number of link fibers and that of WSSs are used as metrics. We clarify that the careful introduction of node-level blocking is the more effective direction in creating future cost effective networks; compared to C/D/C OXCs/ROADMs, it offers a more than 70% reduction in the number of WSSs while the fiber increment is less than ~2%.
Shuhei YAMAKAMI
Nagoya University
Masaki NIWA
Nagoya University
Yojiro MORI
Nagoya University
Hiroshi HASEGAWA
Nagoya University
Ken-ichi SATO
Nagoya University
Fumikazu INUZUKA
NTT Corporation
Akira HIRANO
NTT Corporation
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Shuhei YAMAKAMI, Masaki NIWA, Yojiro MORI, Hiroshi HASEGAWA, Ken-ichi SATO, Fumikazu INUZUKA, Akira HIRANO, "Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services" in IEICE TRANSACTIONS on Communications,
vol. E102-B, no. 3, pp. 510-521, March 2019, doi: 10.1587/transcom.2018EBP3140.
Abstract: Link-level and node-level blocking in photonic networks has been intensively investigated for several decades and the C/D/C approach to OXCs/ROADMs is often emphasized. However, this understanding will have to change in the future large traffic environment. We herein elucidate that exploiting node-level blocking can yield cost-effective large-capacity wavelength routing networks in the near future. We analyze the impact of link-level and node-level blocking in terms of traffic demand and assess the fiber utilization and the amount of hardware needed to develop OXCs/ROADMs, where the necessary number of link fibers and that of WSSs are used as metrics. We clarify that the careful introduction of node-level blocking is the more effective direction in creating future cost effective networks; compared to C/D/C OXCs/ROADMs, it offers a more than 70% reduction in the number of WSSs while the fiber increment is less than ~2%.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2018EBP3140/_p
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@ARTICLE{e102-b_3_510,
author={Shuhei YAMAKAMI, Masaki NIWA, Yojiro MORI, Hiroshi HASEGAWA, Ken-ichi SATO, Fumikazu INUZUKA, Akira HIRANO, },
journal={IEICE TRANSACTIONS on Communications},
title={Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services},
year={2019},
volume={E102-B},
number={3},
pages={510-521},
abstract={Link-level and node-level blocking in photonic networks has been intensively investigated for several decades and the C/D/C approach to OXCs/ROADMs is often emphasized. However, this understanding will have to change in the future large traffic environment. We herein elucidate that exploiting node-level blocking can yield cost-effective large-capacity wavelength routing networks in the near future. We analyze the impact of link-level and node-level blocking in terms of traffic demand and assess the fiber utilization and the amount of hardware needed to develop OXCs/ROADMs, where the necessary number of link fibers and that of WSSs are used as metrics. We clarify that the careful introduction of node-level blocking is the more effective direction in creating future cost effective networks; compared to C/D/C OXCs/ROADMs, it offers a more than 70% reduction in the number of WSSs while the fiber increment is less than ~2%.},
keywords={},
doi={10.1587/transcom.2018EBP3140},
ISSN={1745-1345},
month={March},}
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TY - JOUR
TI - Assessment of Node- and Link- Level Blocking and Creating Cost-Effective Networks in the Era of Large Bandwidth Services
T2 - IEICE TRANSACTIONS on Communications
SP - 510
EP - 521
AU - Shuhei YAMAKAMI
AU - Masaki NIWA
AU - Yojiro MORI
AU - Hiroshi HASEGAWA
AU - Ken-ichi SATO
AU - Fumikazu INUZUKA
AU - Akira HIRANO
PY - 2019
DO - 10.1587/transcom.2018EBP3140
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E102-B
IS - 3
JA - IEICE TRANSACTIONS on Communications
Y1 - March 2019
AB - Link-level and node-level blocking in photonic networks has been intensively investigated for several decades and the C/D/C approach to OXCs/ROADMs is often emphasized. However, this understanding will have to change in the future large traffic environment. We herein elucidate that exploiting node-level blocking can yield cost-effective large-capacity wavelength routing networks in the near future. We analyze the impact of link-level and node-level blocking in terms of traffic demand and assess the fiber utilization and the amount of hardware needed to develop OXCs/ROADMs, where the necessary number of link fibers and that of WSSs are used as metrics. We clarify that the careful introduction of node-level blocking is the more effective direction in creating future cost effective networks; compared to C/D/C OXCs/ROADMs, it offers a more than 70% reduction in the number of WSSs while the fiber increment is less than ~2%.
ER -