Semi-Dynamic Protection Path Configuration for Hybrid Optical Cross-Connect Networks
Summary :
In this paper, a semi-dynamic protection path configuration method is proposed for WDM optical networks. In the method, the protection path is established by connecting several sub-lightpaths from the source node to the destination node of the original working lightpath, as opposed to conventional path restoration method where a single protection lightpath between the source-destination pair performs restoration. The proposed method provides enhanced flexibility in protection path configuration and relieves the cost of spare capacity reservation. This paper also studies the effects of wavelength conversion capability of intermediate optical cross-connect nodes on protection path routing and spare capacity utilization. In terms of spare capacity utilization, the proposed method shows substantial reduction of spare capacity overhead compared with dedicated path restoration in all optical networks without wavelength conversion, and shows similar capacity efficiency compared with shared path restoration in opaque networks with full wavelength conversion capability. In terms of robustness, the proposed method shows nearly the same restoration ratio for double-link failure as that of dynamic restoration method.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E88-B No.10 pp.3922-3929
- Publication Date
- 2005/10/01
- Publicized
- Online ISSN
- DOI
- 10.1093/ietcom/e88-b.10.3922
- Type of Manuscript
- Special Section PAPER (Special Section on Next Generation Photonic Network Technologies)
- Category
Authors
Keyword
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Hoyoung HWANG, "Semi-Dynamic Protection Path Configuration for Hybrid Optical Cross-Connect Networks" in IEICE TRANSACTIONS on Communications,
vol. E88-B, no. 10, pp. 3922-3929, October 2005, doi: 10.1093/ietcom/e88-b.10.3922.
Abstract: In this paper, a semi-dynamic protection path configuration method is proposed for WDM optical networks. In the method, the protection path is established by connecting several sub-lightpaths from the source node to the destination node of the original working lightpath, as opposed to conventional path restoration method where a single protection lightpath between the source-destination pair performs restoration. The proposed method provides enhanced flexibility in protection path configuration and relieves the cost of spare capacity reservation. This paper also studies the effects of wavelength conversion capability of intermediate optical cross-connect nodes on protection path routing and spare capacity utilization. In terms of spare capacity utilization, the proposed method shows substantial reduction of spare capacity overhead compared with dedicated path restoration in all optical networks without wavelength conversion, and shows similar capacity efficiency compared with shared path restoration in opaque networks with full wavelength conversion capability. In terms of robustness, the proposed method shows nearly the same restoration ratio for double-link failure as that of dynamic restoration method.
URL: https://global.ieice.org/en_transactions/communications/10.1093/ietcom/e88-b.10.3922/_p
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@ARTICLE{e88-b_10_3922,
author={Hoyoung HWANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Semi-Dynamic Protection Path Configuration for Hybrid Optical Cross-Connect Networks},
year={2005},
volume={E88-B},
number={10},
pages={3922-3929},
abstract={In this paper, a semi-dynamic protection path configuration method is proposed for WDM optical networks. In the method, the protection path is established by connecting several sub-lightpaths from the source node to the destination node of the original working lightpath, as opposed to conventional path restoration method where a single protection lightpath between the source-destination pair performs restoration. The proposed method provides enhanced flexibility in protection path configuration and relieves the cost of spare capacity reservation. This paper also studies the effects of wavelength conversion capability of intermediate optical cross-connect nodes on protection path routing and spare capacity utilization. In terms of spare capacity utilization, the proposed method shows substantial reduction of spare capacity overhead compared with dedicated path restoration in all optical networks without wavelength conversion, and shows similar capacity efficiency compared with shared path restoration in opaque networks with full wavelength conversion capability. In terms of robustness, the proposed method shows nearly the same restoration ratio for double-link failure as that of dynamic restoration method.},
keywords={},
doi={10.1093/ietcom/e88-b.10.3922},
ISSN={},
month={October},}
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TY - JOUR
TI - Semi-Dynamic Protection Path Configuration for Hybrid Optical Cross-Connect Networks
T2 - IEICE TRANSACTIONS on Communications
SP - 3922
EP - 3929
AU - Hoyoung HWANG
PY - 2005
DO - 10.1093/ietcom/e88-b.10.3922
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E88-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2005
AB - In this paper, a semi-dynamic protection path configuration method is proposed for WDM optical networks. In the method, the protection path is established by connecting several sub-lightpaths from the source node to the destination node of the original working lightpath, as opposed to conventional path restoration method where a single protection lightpath between the source-destination pair performs restoration. The proposed method provides enhanced flexibility in protection path configuration and relieves the cost of spare capacity reservation. This paper also studies the effects of wavelength conversion capability of intermediate optical cross-connect nodes on protection path routing and spare capacity utilization. In terms of spare capacity utilization, the proposed method shows substantial reduction of spare capacity overhead compared with dedicated path restoration in all optical networks without wavelength conversion, and shows similar capacity efficiency compared with shared path restoration in opaque networks with full wavelength conversion capability. In terms of robustness, the proposed method shows nearly the same restoration ratio for double-link failure as that of dynamic restoration method.
ER -
English
