The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Cet article présente une étude complète de trois approches de protection de réseau maillé à multiplexage par répartition en longueur d'onde optique (WDM), à savoir les approches à coût minimal, à liaison unique et à chemin disjoint. Le fonctionnement de chaque approche est décrit et leurs performances sont largement évaluées et comparées. Les principaux aspects pris en compte lors de l'examen et de la comparaison des conceptions comprennent l'exigence de capacité de réserve, la facilité d'exploitation et la faisabilité pratique. Un modèle mathématique basé sur une programmation linéaire en nombres entiers est introduit pour obtenir une limite inférieure sur la capacité de réserve requise pour une protection complète contre toutes les pannes de liaison unique. Deux algorithmes heuristiques ont également été développés pour effectuer l'allocation des ressources de longueur d'onde dans des conditions normales et de défaillance pour les systèmes avec et sans capacité de conversion de longueur d'onde. Il est démontré que l'approche du coût minimal peut répondre aux exigences de coût supplémentaire le plus faible pour la protection, mais cette approche n'est pas considérée comme appropriée pour les applications pratiques en raison de la complexité de la restauration et de la gestion. Le système basé sur une liaison unique est en revanche plus pratique et très rentable. Pour la technique des trajets disjoints, le coût de la capacité disponible est généralement légèrement supérieur à celui du système à liaison unique. Ses principaux avantages résident dans la simple reconfiguration et la protection inhérente contre les pannes de nœuds pour le trafic en transit. Enfin, un nouveau cadre permettant d'obtenir une bonne estimation du coût de la capacité de réserve d'un réseau maillé restaurable est présenté.
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Charoenchai BOWORNTUMMARAT, Lunchakorn WUTTISITTIKULKIJ, "A Comparison on Capacity Requirement of Optical WDM Mesh Network Protection Strategies" in IEICE TRANSACTIONS on Communications,
vol. E85-B, no. 10, pp. 2236-2246, October 2002, doi: .
Abstract: This paper presents a comprehensive investigation of three optical wavelength-division multiplexed (WDM) mesh network protection approaches, namely minimal cost, single link basis and disjoint path approaches. The operation of each approach is described and their performances are extensively evaluated and compared. Key aspects that are taken into the consideration and comparison of the designs include a spare capacity requirement, ease of operation and practical feasibility. A mathematical model based on integer linear programming is introduced to obtain a lower bound on the spare capacity requirement for full protection against all single link failures. Two heuristic algorithms have also been developed to perform wavelength resource allocation under both normal and failure conditions for both systems with and without wavelength conversion capability. It is shown that the minimal cost approach can accomplish the lowest extra cost requirement for protection, but this approach is considered not appropriate for practical applications due to complicated restoration and management. The single link basis scheme is on the other hand more practical and very cost efficient. For the disjoint path technique, the cost for spare capacity is generally slightly greater than that of the single link basis scheme. Its main advantages lie in the simple re-configuration and inherent protection against node failure for in-transit traffic. Finally, a new framework for obtaining a good spare capacity cost estimate of a mesh restorable network is presented.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e85-b_10_2236/_p
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@ARTICLE{e85-b_10_2236,
author={Charoenchai BOWORNTUMMARAT, Lunchakorn WUTTISITTIKULKIJ, },
journal={IEICE TRANSACTIONS on Communications},
title={A Comparison on Capacity Requirement of Optical WDM Mesh Network Protection Strategies},
year={2002},
volume={E85-B},
number={10},
pages={2236-2246},
abstract={This paper presents a comprehensive investigation of three optical wavelength-division multiplexed (WDM) mesh network protection approaches, namely minimal cost, single link basis and disjoint path approaches. The operation of each approach is described and their performances are extensively evaluated and compared. Key aspects that are taken into the consideration and comparison of the designs include a spare capacity requirement, ease of operation and practical feasibility. A mathematical model based on integer linear programming is introduced to obtain a lower bound on the spare capacity requirement for full protection against all single link failures. Two heuristic algorithms have also been developed to perform wavelength resource allocation under both normal and failure conditions for both systems with and without wavelength conversion capability. It is shown that the minimal cost approach can accomplish the lowest extra cost requirement for protection, but this approach is considered not appropriate for practical applications due to complicated restoration and management. The single link basis scheme is on the other hand more practical and very cost efficient. For the disjoint path technique, the cost for spare capacity is generally slightly greater than that of the single link basis scheme. Its main advantages lie in the simple re-configuration and inherent protection against node failure for in-transit traffic. Finally, a new framework for obtaining a good spare capacity cost estimate of a mesh restorable network is presented.},
keywords={},
doi={},
ISSN={},
month={October},}
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TY - JOUR
TI - A Comparison on Capacity Requirement of Optical WDM Mesh Network Protection Strategies
T2 - IEICE TRANSACTIONS on Communications
SP - 2236
EP - 2246
AU - Charoenchai BOWORNTUMMARAT
AU - Lunchakorn WUTTISITTIKULKIJ
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E85-B
IS - 10
JA - IEICE TRANSACTIONS on Communications
Y1 - October 2002
AB - This paper presents a comprehensive investigation of three optical wavelength-division multiplexed (WDM) mesh network protection approaches, namely minimal cost, single link basis and disjoint path approaches. The operation of each approach is described and their performances are extensively evaluated and compared. Key aspects that are taken into the consideration and comparison of the designs include a spare capacity requirement, ease of operation and practical feasibility. A mathematical model based on integer linear programming is introduced to obtain a lower bound on the spare capacity requirement for full protection against all single link failures. Two heuristic algorithms have also been developed to perform wavelength resource allocation under both normal and failure conditions for both systems with and without wavelength conversion capability. It is shown that the minimal cost approach can accomplish the lowest extra cost requirement for protection, but this approach is considered not appropriate for practical applications due to complicated restoration and management. The single link basis scheme is on the other hand more practical and very cost efficient. For the disjoint path technique, the cost for spare capacity is generally slightly greater than that of the single link basis scheme. Its main advantages lie in the simple re-configuration and inherent protection against node failure for in-transit traffic. Finally, a new framework for obtaining a good spare capacity cost estimate of a mesh restorable network is presented.
ER -