The Experts below are selected from a list of 24588 Experts worldwide ranked by ideXlab platform
Reinaldo Vallejos - One of the best experts on this subject based on the ideXlab platform.
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A fault-tolerance solution to any set of Failure Scenarios on Dynamic WDM Networks with wavelength continuity constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communications, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios, to the extent the user can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. To assess the survivability problem, we propose a joint solution to the issues listed next: the set of primary routes, a collection of alternate routes associated to each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than a 100% on two simultaneous link Failures Scenarios or in more complex Failure Scenarios.
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A Fault-Tolerance Solution to Any Set of Failure Scenarios on Dynamic WDM Optical Networks With Wavelength Continuity Constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communication, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios to the extent network users can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. We propose a joint solution to assess the survivability problem. The issues to be solve simultaneously are as follows: the set of primary routes, a collection of alternate routes associated with each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than 100% on two simultaneous link Failures cases or in more complex Failure Scenarios.
Nicolas Jara - One of the best experts on this subject based on the ideXlab platform.
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A fault-tolerance solution to any set of Failure Scenarios on Dynamic WDM Networks with wavelength continuity constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communications, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios, to the extent the user can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. To assess the survivability problem, we propose a joint solution to the issues listed next: the set of primary routes, a collection of alternate routes associated to each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than a 100% on two simultaneous link Failures Scenarios or in more complex Failure Scenarios.
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A Fault-Tolerance Solution to Any Set of Failure Scenarios on Dynamic WDM Optical Networks With Wavelength Continuity Constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communication, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios to the extent network users can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. We propose a joint solution to assess the survivability problem. The issues to be solve simultaneously are as follows: the set of primary routes, a collection of alternate routes associated with each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than 100% on two simultaneous link Failures cases or in more complex Failure Scenarios.
Hermann Pempelfort - One of the best experts on this subject based on the ideXlab platform.
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A fault-tolerance solution to any set of Failure Scenarios on Dynamic WDM Networks with wavelength continuity constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communications, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios, to the extent the user can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. To assess the survivability problem, we propose a joint solution to the issues listed next: the set of primary routes, a collection of alternate routes associated to each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than a 100% on two simultaneous link Failures Scenarios or in more complex Failure Scenarios.
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A Fault-Tolerance Solution to Any Set of Failure Scenarios on Dynamic WDM Optical Networks With Wavelength Continuity Constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communication, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios to the extent network users can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. We propose a joint solution to assess the survivability problem. The issues to be solve simultaneously are as follows: the set of primary routes, a collection of alternate routes associated with each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than 100% on two simultaneous link Failures cases or in more complex Failure Scenarios.
Gerardo Rubino - One of the best experts on this subject based on the ideXlab platform.
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A fault-tolerance solution to any set of Failure Scenarios on Dynamic WDM Networks with wavelength continuity constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communications, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios, to the extent the user can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. To assess the survivability problem, we propose a joint solution to the issues listed next: the set of primary routes, a collection of alternate routes associated to each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than a 100% on two simultaneous link Failures Scenarios or in more complex Failure Scenarios.
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A Fault-Tolerance Solution to Any Set of Failure Scenarios on Dynamic WDM Optical Networks With Wavelength Continuity Constraints
IEEE Access, 2020Co-Authors: Nicolas Jara, Hermann Pempelfort, Gerardo Rubino, Reinaldo VallejosAbstract:Survivability of internet services is a significant and crucial challenge in designing optical networks. A robust infrastructure and transmission protocols are needed to maintain communication, despite the existence of one or more failed components on the system. Here, we present a generalized approach to tolerate any set of Failure Scenarios to the extent network users can still communicate with the remaining components, where a Scenario is an arbitrary set of links in a non-operational state. We propose a joint solution to assess the survivability problem. The issues to be solve simultaneously are as follows: the set of primary routes, a collection of alternate routes associated with each Failure Scenario, and the capacity required on the network to allow communication between all users, in spite of any considered Failure Scenario, while satisfying for each user a specific predefined quality of service threshold, defined in the Service Level Agreement (SLA). Numerical results show that the proposed approach not only enjoys the advantages of low complexity and ease of implementation, but it is also able to achieve significant resource savings compared to existing methods. The savings are higher than 30% on single link Failures and more than 100% on two simultaneous link Failures cases or in more complex Failure Scenarios.
Jitendra Agarwal - One of the best experts on this subject based on the ideXlab platform.
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Methodology to evaluate the risk of vulnerable Failure Scenarios in a water pipe network
Risk Analysis VII, 2010Co-Authors: António A. L. Sampaio Duarte, Jorge Pinto, Luís Afonso, Isabel Bentes, Humberto Varum, João Varajão, Jitendra AgarwalAbstract:The emerging theory of vulnerability of water pipe networks intends to give an important contribution for the design of this important component of water supply systems, as well as, for the assessment, rehabilitation and management of the existing ones. The fundamental contribution of this theory is to design water pipe networks more robust since it is able to identify the most vulnerable parts of them. The concept of vulnerability is associated with the disproportionateness of the Failure consequences in relation to the initial damage. It is not a theory of robustness. The main objective of this research work is to explain how the risk of a vulnerable Failure Scenario of a water pipe network may be accessed and how the theory of vulnerability can be relevant.
