The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Shigeru Takayama - One of the best experts on this subject based on the ideXlab platform.
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Characteristic Functions of Sensing Node Network for Landslide Disaster Monitoring
2018 57th Annual Conference of the Society of Instrument and Control Engineers of Japan (SICE), 2018Co-Authors: Masanori Homma, Takeyoshi Nakano, Vuvan Khoa, Shigeru TakayamaAbstract:This paper shows characteristic functions of sensing Node Network system for monitoring Landslide Disaster(LD). The Network system of monitoring disaster should have special functions for autonomous operation, robustness to Network troubles, reliability data transmission, acquirement of Node status and distinction of Landslide. Telemetric Sensing Node Network System(TSNNS) has been constructed to realize these functions. Host System(HS) in TSNNS can monitor the occurrence of LD at a remote place.
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Characteristic functions of wireless sensing Node Network for landslide disaster
TENCON 2017 - 2017 IEEE Region 10 Conference, 2017Co-Authors: Masanori Homma, Takeyoshi Nakano, Vu Van Khoa, Shigeru TakayamaAbstract:Telemetrie Sensing Node Network System(TSNNS) is so available to monitor Landslide Disaster(LD) occurred on slopes of mountain and hill. TSNNS consists of three main systems; Local Sensing Node Network System(LSNNS) arranged on the slopes, Cloud System and Host System(HS) at a remote place far from the area of LSNNS. In disaster measurement for landslide, the measuring system needs characteristic functions to prevent damages by natural disaster depended on easy brokenness, hard environment and wide monitoring area. It is necessary that LSNNS keeps these functions. This paper describes the detail and operation of these functions. And also, it is shown that TSNNS and these characteristic functions are familiar.
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ASCC - Detection of landslide disaster by telemetric sensing Node Network system
2017 11th Asian Control Conference (ASCC), 2017Co-Authors: Vu Van Khoa, Takeyoshi Nakano, Homma Masanori, Shigeru TakayamaAbstract:Telemetric Sensing Node Network System (TSNNS) is one availability to monitor Landslide Disaster (LD). This Network system consists of Local Sensing Node Network System (LSNNS), Host System (HS), and Cloud System (CS). LSNNS is the Network of sensing Nodes distributed in a dangerous slope on a mountain. HS manages data from LSNNS to monitor the occurrence of LD at a remote place. On the other hand, HS also manages TSNNS to know the condition and handle the characteristic functions. This system needs characteristic functions to prevent damages from LD due to hard environment and wide monitoring area. This paper shows this system enables monitoring wide area with sensing Nodes and distinguishing types of LD by three-dimensional acceleration sensor.
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Implementation of Multiple Host Nodes in Wireless Sensing Node Network System for Landslide Monitoring
Journal of Physics: Conference Series, 2015Co-Authors: Faizulsalihin Bin Abas, Shigeru TakayamaAbstract:This paper proposes multiple host Nodes in Wireless Sensing Node Network System (WSNNS) for landslide monitoring. As landslide disasters damage monitoring system easily, one major demand in landslide monitoring is the flexibility and robustness of the system to evaluate the current situation in the monitored area. For various reasons WSNNS can provide an important contribution to reach that aim. In this system, acceleration sensors and GPS are deployed in sensing Nodes. Location information by GPS, enable the system to estimate Network topology and enable the system to perceive the location in emergency by monitoring the Node mode. Acceleration sensors deployment, capacitate this system to detect slow mass movement that can lead to landslide occurrence. Once deployed, sensing Nodes self-organize into an autonomous wireless ad hoc Network. The measurement parameter data from sensing Nodes is transmitted to Host System via host Node and "Cloud" System. The implementation of multiple host Nodes in Local Sensing Node Network System (LSNNS), improve risk- management of the WSNNS for real-time monitoring of landslide disaster.
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Wireless Sensing Node Network Management for Monitoring Landslide Disaster
Journal of Physics: Conference Series, 2013Co-Authors: Shigeru Takayama, J. Akiyama, T. Fujiki, N. A. B. MokhtarAbstract:This paper shows the Network management and operation to monitor landslide disaster at slop of mountain and hill. Natural disasters damage a measuring system easily. It is necessary for the measuring system to be flexible and robust. The measuring Network proposed in this paper is the telemetry system consisted of host system (HS) and local sensing Nodes Network system (LSNNS). LSNNS operates autonomously and sometimes is controlled by commands from HS. HS collects data/information of landslide disaster from LSNNS, and controls LSNNS remotely. HS and LSNNS are communicated by using cloud system. The dual communication is very effective and convenient to manage a Network system operation.
Bowen Chen - One of the best experts on this subject based on the ideXlab platform.
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cost effective survivable virtual optical Network mapping in flexible bandwidth optical Networks
Journal of Lightwave Technology, 2016Co-Authors: Bowen Chen, Weisheng Xie, Jason P. Jue, Yongli Zhao, Jie Zhang, Gangxiang ShenAbstract:This paper addresses the minimum Network cost problem for survivable virtual optical Network mapping in flexible bandwidth optical Networks. For each virtual link, we provide dedicated-path protection, i.e., primary path and backup path, to guarantee high survivability on the physical Network. To simplify the virtual links mapping, an extended auxiliary graph is constructed by coordinating the virtual optical Network and the physical Network. We develop an integer linear program (ILP) model, the LBSD (the largest bandwidth requirement (LB) of virtual links versus the shortest distance (SD)) mapping approach, the LCSD (the largest computing (LC) resources requirement versus the shortest distance) mapping approach to minimize the Network cost for a given set of VONs. For comparison, we also introduce one baseline mapping approach, named LCLC (the largest computing resources requirement versus the largest computing resources (LC) provisioning), and the lower bound. Simulation results show that, comparing to the LCLC mapping approach, the ILP model, the LBSD and LCSD mapping approaches not only solve the problem of minimizing the total Network cost but also guarantee that the spectrum usage and the number of regenerators are minimum. The ILP model and the LBSD mapping approach are greatly close to a lower bound of Network cost and perform the same results as a lower bound of spectrum usage in both the 6-Node Network and the 14-Node Network. As a result, our proposed LBSD mapping approach can efficiently reduce the Network cost, spectrum usage, and the number of regenerators, which is near the optimal solutions of the ILP model.
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energy efficiency with sliceable multi flow transponders and elastic regenerators in survivable virtual optical Networks
IEEE Transactions on Communications, 2016Co-Authors: Yongli Zhao, Bowen Chen, Jie Zhang, Xinbo WangAbstract:Due to the accelerated evolution of application services, optical Network virtualization simplifies optical-layer resource management and provides flexibility in spectrum resource allocation. However, the energy consumption is one of the great challenges in the virtual optical Networks (VONs). This paper focuses on the energy efficiency problem in survivable VONs with the sliceable multi-flow transponders and the elastic regenerators. For each VON, all virtual links provide the dedicated-path protection in the flexible bandwidth optical Networks. An integer linear program (ILP) and a minimum unit-energy submatrix (MinEnSub) VON mapping approach are developed to improve the energy efficiency, minimize the power consumption, and reduce the spectrum usage under different line rates. For comparison, a baseline VON mapping approach is introduced. Simulation results show that the ILP model and the proposed MinEnSub VON mapping approach can save power consumption, improve the energy efficiency, and reduce the spectrum usage compared with the baseline VON mapping approach in a 6-Node Network. As expected, in a 14-Node Network, simulation results also validate that our proposed MinEnSub VON mapping approach can achieve better performance in terms of power consumption, energy efficiency, number of frequencies, and the number of regenerators.
Yongli Zhao - One of the best experts on this subject based on the ideXlab platform.
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cost effective survivable virtual optical Network mapping in flexible bandwidth optical Networks
Journal of Lightwave Technology, 2016Co-Authors: Bowen Chen, Weisheng Xie, Jason P. Jue, Yongli Zhao, Jie Zhang, Gangxiang ShenAbstract:This paper addresses the minimum Network cost problem for survivable virtual optical Network mapping in flexible bandwidth optical Networks. For each virtual link, we provide dedicated-path protection, i.e., primary path and backup path, to guarantee high survivability on the physical Network. To simplify the virtual links mapping, an extended auxiliary graph is constructed by coordinating the virtual optical Network and the physical Network. We develop an integer linear program (ILP) model, the LBSD (the largest bandwidth requirement (LB) of virtual links versus the shortest distance (SD)) mapping approach, the LCSD (the largest computing (LC) resources requirement versus the shortest distance) mapping approach to minimize the Network cost for a given set of VONs. For comparison, we also introduce one baseline mapping approach, named LCLC (the largest computing resources requirement versus the largest computing resources (LC) provisioning), and the lower bound. Simulation results show that, comparing to the LCLC mapping approach, the ILP model, the LBSD and LCSD mapping approaches not only solve the problem of minimizing the total Network cost but also guarantee that the spectrum usage and the number of regenerators are minimum. The ILP model and the LBSD mapping approach are greatly close to a lower bound of Network cost and perform the same results as a lower bound of spectrum usage in both the 6-Node Network and the 14-Node Network. As a result, our proposed LBSD mapping approach can efficiently reduce the Network cost, spectrum usage, and the number of regenerators, which is near the optimal solutions of the ILP model.
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energy efficiency with sliceable multi flow transponders and elastic regenerators in survivable virtual optical Networks
IEEE Transactions on Communications, 2016Co-Authors: Yongli Zhao, Bowen Chen, Jie Zhang, Xinbo WangAbstract:Due to the accelerated evolution of application services, optical Network virtualization simplifies optical-layer resource management and provides flexibility in spectrum resource allocation. However, the energy consumption is one of the great challenges in the virtual optical Networks (VONs). This paper focuses on the energy efficiency problem in survivable VONs with the sliceable multi-flow transponders and the elastic regenerators. For each VON, all virtual links provide the dedicated-path protection in the flexible bandwidth optical Networks. An integer linear program (ILP) and a minimum unit-energy submatrix (MinEnSub) VON mapping approach are developed to improve the energy efficiency, minimize the power consumption, and reduce the spectrum usage under different line rates. For comparison, a baseline VON mapping approach is introduced. Simulation results show that the ILP model and the proposed MinEnSub VON mapping approach can save power consumption, improve the energy efficiency, and reduce the spectrum usage compared with the baseline VON mapping approach in a 6-Node Network. As expected, in a 14-Node Network, simulation results also validate that our proposed MinEnSub VON mapping approach can achieve better performance in terms of power consumption, energy efficiency, number of frequencies, and the number of regenerators.
Jie Zhang - One of the best experts on this subject based on the ideXlab platform.
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cost effective survivable virtual optical Network mapping in flexible bandwidth optical Networks
Journal of Lightwave Technology, 2016Co-Authors: Bowen Chen, Weisheng Xie, Jason P. Jue, Yongli Zhao, Jie Zhang, Gangxiang ShenAbstract:This paper addresses the minimum Network cost problem for survivable virtual optical Network mapping in flexible bandwidth optical Networks. For each virtual link, we provide dedicated-path protection, i.e., primary path and backup path, to guarantee high survivability on the physical Network. To simplify the virtual links mapping, an extended auxiliary graph is constructed by coordinating the virtual optical Network and the physical Network. We develop an integer linear program (ILP) model, the LBSD (the largest bandwidth requirement (LB) of virtual links versus the shortest distance (SD)) mapping approach, the LCSD (the largest computing (LC) resources requirement versus the shortest distance) mapping approach to minimize the Network cost for a given set of VONs. For comparison, we also introduce one baseline mapping approach, named LCLC (the largest computing resources requirement versus the largest computing resources (LC) provisioning), and the lower bound. Simulation results show that, comparing to the LCLC mapping approach, the ILP model, the LBSD and LCSD mapping approaches not only solve the problem of minimizing the total Network cost but also guarantee that the spectrum usage and the number of regenerators are minimum. The ILP model and the LBSD mapping approach are greatly close to a lower bound of Network cost and perform the same results as a lower bound of spectrum usage in both the 6-Node Network and the 14-Node Network. As a result, our proposed LBSD mapping approach can efficiently reduce the Network cost, spectrum usage, and the number of regenerators, which is near the optimal solutions of the ILP model.
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energy efficiency with sliceable multi flow transponders and elastic regenerators in survivable virtual optical Networks
IEEE Transactions on Communications, 2016Co-Authors: Yongli Zhao, Bowen Chen, Jie Zhang, Xinbo WangAbstract:Due to the accelerated evolution of application services, optical Network virtualization simplifies optical-layer resource management and provides flexibility in spectrum resource allocation. However, the energy consumption is one of the great challenges in the virtual optical Networks (VONs). This paper focuses on the energy efficiency problem in survivable VONs with the sliceable multi-flow transponders and the elastic regenerators. For each VON, all virtual links provide the dedicated-path protection in the flexible bandwidth optical Networks. An integer linear program (ILP) and a minimum unit-energy submatrix (MinEnSub) VON mapping approach are developed to improve the energy efficiency, minimize the power consumption, and reduce the spectrum usage under different line rates. For comparison, a baseline VON mapping approach is introduced. Simulation results show that the ILP model and the proposed MinEnSub VON mapping approach can save power consumption, improve the energy efficiency, and reduce the spectrum usage compared with the baseline VON mapping approach in a 6-Node Network. As expected, in a 14-Node Network, simulation results also validate that our proposed MinEnSub VON mapping approach can achieve better performance in terms of power consumption, energy efficiency, number of frequencies, and the number of regenerators.
Gangxiang Shen - One of the best experts on this subject based on the ideXlab platform.
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cost effective survivable virtual optical Network mapping in flexible bandwidth optical Networks
Journal of Lightwave Technology, 2016Co-Authors: Bowen Chen, Weisheng Xie, Jason P. Jue, Yongli Zhao, Jie Zhang, Gangxiang ShenAbstract:This paper addresses the minimum Network cost problem for survivable virtual optical Network mapping in flexible bandwidth optical Networks. For each virtual link, we provide dedicated-path protection, i.e., primary path and backup path, to guarantee high survivability on the physical Network. To simplify the virtual links mapping, an extended auxiliary graph is constructed by coordinating the virtual optical Network and the physical Network. We develop an integer linear program (ILP) model, the LBSD (the largest bandwidth requirement (LB) of virtual links versus the shortest distance (SD)) mapping approach, the LCSD (the largest computing (LC) resources requirement versus the shortest distance) mapping approach to minimize the Network cost for a given set of VONs. For comparison, we also introduce one baseline mapping approach, named LCLC (the largest computing resources requirement versus the largest computing resources (LC) provisioning), and the lower bound. Simulation results show that, comparing to the LCLC mapping approach, the ILP model, the LBSD and LCSD mapping approaches not only solve the problem of minimizing the total Network cost but also guarantee that the spectrum usage and the number of regenerators are minimum. The ILP model and the LBSD mapping approach are greatly close to a lower bound of Network cost and perform the same results as a lower bound of spectrum usage in both the 6-Node Network and the 14-Node Network. As a result, our proposed LBSD mapping approach can efficiently reduce the Network cost, spectrum usage, and the number of regenerators, which is near the optimal solutions of the ILP model.
