Bibliografías temáticas / Control over networks

Literatura académica sobre el tema "Control over networks"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 31 de enero de 2023

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Artículos de revistas sobre el tema "Control over networks"

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Onat, Ahmet, Teoman Naskali, Emrah Parlakay y Ozan Mutluer. "Control Over Imperfect Networks: Model-Based Predictive Networked Control Systems". IEEE Transactions on Industrial Electronics 58, n.º 3 (marzo de 2011): 905–13. http://dx.doi.org/10.1109/tie.2010.2051932.

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Di Benedetto, Maria Domenica, Karl Henrik Johansson, Mikael Johansson y Fortunato Santucci. "Industrial control over wireless networks". International Journal of Robust and Nonlinear Control 20, n.º 2 (25 de enero de 2010): 119–22. http://dx.doi.org/10.1002/rnc.1562.

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Pajic, Miroslav, Shreyas Sundaram, George J. Pappas y Rahul Mangharam. "The Wireless Control Network: A New Approach for Control Over Networks". IEEE Transactions on Automatic Control 56, n.º 10 (octubre de 2011): 2305–18. http://dx.doi.org/10.1109/tac.2011.2163864.

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Doerfel, Marya L., Yannick Atouba y Jack L. Harris. "(Un)Obtrusive Control in Emergent Networks: Examining Funding Agencies’ Control Over Nonprofit Networks". Nonprofit and Voluntary Sector Quarterly 46, n.º 3 (21 de agosto de 2016): 469–87. http://dx.doi.org/10.1177/0899764016664588.

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Nonprofit sector organizations tackle intractable problems by seeking support from external funding agencies, resulting in funders holding power through resource control. Nonprofits also access resources and coordinate activities through building networks with other nonprofits. Such networks have been viewed as emergent with an underlying assumption that the nonprofits determine when and with whom to partner. Given the power of funders, however, how much control do the nonprofits have in determining whether or not to partner? Document analysis of 83 application packets used by funders in the United States to collect and assess nonprofit suitability for funding shows significant differences between private- and public-sector control over nonprofits decisions to network. Unlike private-sector foundations, public-agency funding documents mandate awardees to network, which has practical and theoretical implications. Although the idea of building a network implies autonomous acts on the part of nonprofits, some are prone to hierarchical influences through grant-making policy.
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Chen, Jiming y David K. Y. Yau. "Control and optimization over wireless networks". Journal of Network and Computer Applications 34, n.º 6 (noviembre de 2011): 1771–72. http://dx.doi.org/10.1016/j.jnca.2011.07.002.

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Nedić, Angelia y Ji Liu. "Distributed Optimization for Control". Annual Review of Control, Robotics, and Autonomous Systems 1, n.º 1 (28 de mayo de 2018): 77–103. http://dx.doi.org/10.1146/annurev-control-060117-105131.

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Advances in wired and wireless technology have necessitated the development of theory, models, and tools to cope with the new challenges posed by large-scale control and optimization problems over networks. The classical optimization methodology works under the premise that all problem data are available to a central entity (a computing agent or node). However, this premise does not apply to large networked systems, where each agent (node) in the network typically has access only to its private local information and has only a local view of the network structure. This review surveys the development of such distributed computational models for time-varying networks. To emphasize the role of the network structure in these approaches, we focus on a simple direct primal (sub)gradient method, but we also provide an overview of other distributed methods for optimization in networks. Applications of the distributed optimization framework to the control of power systems, least squares solutions to linear equations, and model predictive control are also presented.
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Savla, Ketan, Jeff S. Shamma y Munther A. Dahleh. "Network Effects on the Robustness of Dynamic Systems". Annual Review of Control, Robotics, and Autonomous Systems 3, n.º 1 (3 de mayo de 2020): 115–49. http://dx.doi.org/10.1146/annurev-control-091219-012549.

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We review selected results related to the robustness of networked systems in finite and asymptotically large size regimes in static and dynamical settings. In the static setting, within the framework of flow over finite networks, we discuss the effect of physical constraints on robustness to loss in link capacities. In the dynamical setting, we review several settings in which small-gain-type analysis provides tight robustness guarantees for linear dynamics over finite networks toward worst-case and stochastic disturbances. We discuss network flow dynamic settings where nonlinear techniques facilitate understanding the effect, on robustness, of constraints on capacity and information, substituting information with control action, and cascading failure. We also contrast cascading failure with a representative contagion model. For asymptotically large networks, we discuss the role of network properties in connecting microscopic shocks to emergent macroscopic fluctuations under linear dynamics as well as for economic networks at equilibrium. Through this review, we aim to achieve two objectives: to highlight selected settings in which the role of the interconnectivity structure of a network in its robustness is well understood, and to highlight a few additional settings in which existing system-theoretic tools give tight robustness guarantees and that are also appropriate avenues for future network-theoretic investigations.
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Pan, Ya-Jun, Peter X. Liu, Yang Shi y Jie Sheng. "Advances in Methods for Control over Networks". Journal of Control Science and Engineering 2012 (2012): 1–2. http://dx.doi.org/10.1155/2012/136809.

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Lee, H. J. y J. T. Lim. "Fair congestion control over wireless multihop networks". IET Communications 6, n.º 11 (2012): 1475. http://dx.doi.org/10.1049/iet-com.2010.0658.

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Ferrer, M., M. de Diego, G. Piñero y A. Gonzalez. "Active noise control over adaptive distributed networks". Signal Processing 107 (febrero de 2015): 82–95. http://dx.doi.org/10.1016/j.sigpro.2014.07.026.

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Tesis sobre el tema "Control over networks"

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Ji, Kun. "Real-time control over networks". Texas A&M University, 2003. http://hdl.handle.net/1969.1/5834.

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A control system in which sensors, actuators, and controllers are interconnected over a communication network is called a networked control system (NCS). Enhanced computational capabilities and bandwidths in the networking technology enabled researchers to develop NCSs to implement distributed control schemes. This dissertation presents a framework for the modeling, design, stability analysis, control, and bandwidth allocation of real-time control over networks. This framework covers key research issues regarding control over networks and can be the guidelines of NCS design. A single actuator ball magnetic-levitation (maglev) system is implemented as a test bed for the real-time control over networks to illustrate and verify the theoretical results of this dissertation. Experimentally verifying the feasibility of Internet-based real-time control is another main objective of this dissertation. First, this dissertation proposes a novel NCS model in which the effects of the networkinduced time delay, data-packet loss, and out-of-order data transmission are all considered. Second, two simple algorithms based on model-estimator and predictor- and timeout-scheme are proposed to compensate for the network-induced time delay and packet loss simultaneously. These algorithms are verified experimentally by the ball maglev test bed. System stability analyses of original and compensated systems are presented. Then, a novel co-design consideration related to real-time control and network communication is also proposed. The working range of the sampling frequency is determined by the analysis of the system stability and network parameters such as time delay, data rate, and data-packet size. The NCS design chart developed in this dissertation can be a useful guideline for choosing the network and control parameters in the design of an NCS. Using a real-time operating system for real-time control over networks is also proposed as one of the main contributions of this dissertation. After a real-time NCS is successfully implemented, advanced control theories such as robust control, optimal control, and adaptive control are applied and formulated to improve the quality of control (QoC) of NCSs. Finally, an optimal dynamic bandwidth management method is proposed to solve the optimal network scheduling and bandwidth allocation problem when NCSs are connected to the same network and are sharing the network resource.
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Abebe, Zelalem Teffera. "Process Control over Wireless Sensor Networks". Thesis, KTH, Reglerteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133584.

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A signicant growth was witnessed in the led of Wireless Sensor Networks (WSNs), the previous decade. Advances in hardware miniaturization coupled with increased processing capabilities and memory capacity have extended the application domains of WSNs. In light of this, standardization organizations led by academia and industries initiated activities for the design of protocols such as IEEE 802.15.4 and IETF RPL (Routing Protocol for Low power and Lossy Networks). IEEE 802.15.4 denes physical and media access layers for WSNs while IETF RPL denes the functionality of the routing layer. This thesis investigates research issues in wireless sensor networks and network controlled systems that control micro-biological processes for water treatment plants. By choosing a process model that can relate to an industrial process, feasibility of control over IEEE 802.15.4 and RPL protocols is evaluated for stability with regards to network delay and packet loss. Settling time and overshoot are measured to indicate control performance. Control messages related to routing and routing table lengths are measured to indicate network stability and scalability. The system model used is a centralized discrete controller controlling a thermal processes running on the sensors. This model is chosen for representing wide industrial networked control systems while adding a WSN dimension based on IEEE 802.15.4 and RPL. The main contribution of this thesis is an experimental study where both the network and controller performance is validated while utilizing commercial o-theshelf sensor platforms. The results from this experimental work include rst the use of established theorems for analyzing control using WSNs. Moreover, the ability of IEEE 802.15.4 and RPL to provide stable communication that is reliable enough for actual industrial control implementation is validated.
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Zaidi, Ali Abbas. "Sensing and Control of Dynamical Systems Over Networks". Doctoral thesis, KTH, Kommunikationsteori, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133337.

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Rapid advances in sensing, computing, and wireless technologies have led to significant interest in the understanding and development of wireless networked control systems. Networked control systems consist of spatially distributed agents such as plants (dynamical systems), sensors, and controllers, that interact to achieve desired objectives. The sensors monitor the plants and communicate measurements to remotely situated controllers. The controllers apply actions to stabilize and control the plants.  Such systems have diverse applications in security, surveillance, industrial production, health monitoring, remote surgery, environment management, space missions, and intelligent transport systems. The objective of the thesis is to understand the fundamental limits and principles involved in the design of sensing and control strategies for dynamical systems controlled over communication networks. The thesis has three parts. Part I and Part III consider the design of sensing and control strategies for mean-square stabilization of linear dynamical systems over fundamental communication channels such as point-to-point, relay, multiple-access, broadcast, and interference channels. The sensors and other nodes within the communication network are assumed to have average power transmit constraints. Moreover, the communication links between all agents (plants, sensors, controllers) are modeled as Gaussian channels. Necessary as well as sufficient conditions for mean-square stabilization over various network topologies are derived. The necessary conditions are arrived at using information theoretic arguments such as properties of mutual information, directed information, and differential entropy. The sufficient conditions are obtained using delay-free sensing and control policies. These conditions quantify the effect of communication network parameters such as transmit powers, channel noise, and channel interference on the stability of the plant(s). Different settings where linear policies are optimal, asymptotically optimal (in certain parameters of the system) and suboptimal have also been identified. Part II considers the design of real-time sensing and control strategies for minimization of a quadratic cost function of the state process of a system over Gaussian networks. Two fundamental Gaussian networks are considered: i) cascade network and ii) parallel network. For each network, non-linear sensing and control schemes are proposed and sub-optimality of linear strategies is discussed. The results reveal fundamental limits on the performance of linear systems controlled over Gaussian networks. The methods used to derive these results reveal a close interplay between information theory and control theory.

QC 20131031

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梁鉅輝 y Kui-fai Leung. "Enhancing transmission control protocol performance over wireless networks". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31227570.

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Ekman, Rasmus. "Automobile Control Systems : Transition from Controller Area Networks to Ethernets". Thesis, KTH, Radio Systems Laboratory (RS Lab), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-148052.

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Due to concerns about the negative impacts of powering vehicles using fossil fuel and the future availability of fossil fuel, there has been an increased focus on electric vehicles. However, current electric vehicle energy efficiency is a key problem as these vehicles are not as efficient as fossil-fueled vehicles. One way of decreasing a vehicle’s energy consumption is to reduce the weight of the vehicle, while still ensuring the safety and reliability of the vehicle. Controller Area Network (CAN) systems have been used in vehicles to realize real-time applications, however the low peak data rates of CAN have begun to limit the applications that can be realized. This bachelor’s thesis project focuses on secure communication within a vehicle using Ethernet. Additionally, the use of Power over Ethernet can be used for powering some of the network attached devices within the vehicle. The goal is to reduce the number of components and the weight of the vehicle while continuing to ensure the security and reliability of the communication – even when the network grows in size (either in physical size or in number of connected devices). This thesis shows that an Ethernet based system can serve as a possible replacement candidate for the CAN system due to its low latencies and high bandwidth. Ethernet is also a very scalable system with none of the limitations that a CAN system have.
Den negativa påverkan av fossila bränslen har de senaste årtionden haft en negativ på planeten, mängden fossila bränslen över världen konsumeras även i en högre takt än vad som produceras. Därför har fokusen för att finna förnybara energi källor som både är effektiva och inte påverkar miljön på ett negativt sätt ökat. Därför är elbilar en viktig del i konverteringen av enheter som drivs av fossila bränslen till förnybara energikällor. Ett av problemen i en elbil är att energi konsumptionen är inte lika effektiv som fossila bränslen inom bil industrin. Ett sätt att sänka energi konsumptionen är att minska mängden komponenter inom en bil för att minska på vikten, utan att påverka säkerheten och tillförlitligheten. Tidigare har man använt sig av ett CAN system för att försäkra sig om systemet fungerar felfritt i realtid, problematiken med detta system är att när nätverket ökar i storlek så sätter de fysiska begränsningarna av detta system stop för den garanterade säkerheten. Detta kandidatexamensarbete kommer att fokusera på den interna kommunikationen i en elbil med hjälp av ett ethernet baserat kommunkations system över CAN systemet. Power over Ethernet tekinken kommer att tillämpas för de systemen som kan drivas av detta system. Målet är att reducera antalet komponenter som behövs och att garantera säkerheten och tillförlitligheten av den interna kommunikationen när nätverket av komponenter ökar i storlek. Det här kandidatarbetet visar att Ethernet kan ersätta det nuvarande CAN systemet ef-tersom att Ethernet erbjuder låga latenser och hög bandbredd. Detta arbete visar även att Et-hernet är väldigt skalbart och har inte begränsingarna som ett CAN system har.
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Li, Yuliang. "Congestion control for scalable video transmission over IP networks". Thesis, University of Bristol, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.441312.

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Chotikapong, Yotsapak. "TCP/IP and ATM over LEO satellite networks". Thesis, University of Surrey, 2000. http://epubs.surrey.ac.uk/638/.

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Shi, Xiaohan. "A reliable real-time transport protocol for networked control systems over wireless networks". Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/60160/1/Xiaohan_Shi_Thesis.pdf.

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Deploying wireless networks in networked control systems (NCSs) has become more and more popular during the last few years. As a typical type of real-time control systems, an NCS is sensitive to long and nondeterministic time delay and packet losses. However, the nature of the wireless channel has the potential to degrade the performance of NCS networks in many aspects, particularly in time delay and packet losses. Transport layer protocols could play an important role in providing both reliable and fast transmission service to fulfill NCS’s real-time transmission requirements. Unfortunately, none of the existing transport protocols, including the Transport Control Protocol (TCP) and the User Datagram Protocol (UDP), was designed for real-time control applications. Moreover, periodic data and sporadic data are two types of real-time data traffic with different priorities in an NCS. Due to the lack of support for prioritized transmission service, the real-time performance for periodic and sporadic data in an NCS network is often degraded significantly, particularly under congested network conditions. To address these problems, a new transport layer protocol called Reliable Real-Time Transport Protocol (RRTTP) is proposed in this thesis. As a UDP-based protocol, RRTTP inherits UDP’s simplicity and fast transmission features. To improve the reliability, a retransmission and an acknowledgement mechanism are designed in RRTTP to compensate for packet losses. They are able to avoid unnecessary retransmission of the out-of-date packets in NCSs, and collisions are unlikely to happen, and small transmission delay can be achieved. Moreover, a prioritized transmission mechanism is also designed in RRTTP to improve the real-time performance of NCS networks under congested traffic conditions. Furthermore, the proposed RRTTP is implemented in the Network Simulator 2 for comprehensive simulations. The simulation results demonstrate that RRTTP outperforms TCP and UDP in terms of real-time transmissions in an NCS over wireless networks.
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Alnuem, M. A. "Improving TCP performance over heterogeneous networks : the investigation and design of End to End techniques for improving TCP performance for transmission errors over heterogeneous data networks". Thesis, University of Bradford, 2009. http://hdl.handle.net/10454/3347.

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Transmission Control Protocol (TCP) is considered one of the most important protocols in the Internet. An important mechanism in TCP is the congestion control mechanism which controls TCP sending rate and makes TCP react to congestion signals. Nowadays in heterogeneous networks, TCP may work in networks with some links that have lossy nature (wireless networks for example). TCP treats all packet loss as if they were due to congestion. Consequently, when used in networks that have lossy links, TCP reduces sending rate aggressively when there are transmission (non-congestion) errors in an uncongested network. One solution to the problem is to discriminate between errors; to deal with congestion errors by reducing TCP sending rate and use other actions for transmission errors. In this work we investigate the problem and propose a solution using an end-to-end error discriminator. The error discriminator will improve the current congestion window mechanism in TCP and decide when to cut and how much to cut the congestion window. We have identified three areas where TCP interacts with drops: congestion window update mechanism, retransmission mechanism and timeout mechanism. All of these mechanisms are part of the TCP congestion control mechanism. We propose changes to each of these mechanisms in order to allow TCP to cope with transmission errors. We propose a new TCP congestion window action (CWA) for transmission errors by delaying the window cut decision until TCP receives all duplicate acknowledgments for a given window of data (packets in flight). This will give TCP a clear image about the number of drops from this window. The congestion window size is then reduced only by number of dropped packets. Also, we propose a safety mechanism to prevent this algorithm from causing congestion to the network by using an extra congestion window threshold (tthresh) in order to save the safe area where there are no drops of any kind. The second algorithm is a new retransmission action to deal with multiple drops from the same window. This multiple drops action (MDA) will prevent TCP from falling into consecutive timeout events by resending all dropped packets from the same window. A third algorithm is used to calculate a new back-off policy for TCP retransmission timeout based on the network's available bandwidth. This new retransmission timeout action (RTA) helps relating the length of the timeout event with current network conditions, especially with heavy transmission error rates. The three algorithms have been combined and incorporated into a delay based error discriminator. The improvement of the new algorithm is measured along with the impact on the network in terms of congestion drop rate, end-to-end delay, average queue size and fairness of sharing the bottleneck bandwidth. The results show that the proposed error discriminator along with the new actions toward transmission errors has increased the performance of TCP. At the same time it has reduced the load on the network compared to existing error discriminators. Also, the proposed error discriminator has managed to deliver excellent fairness values for sharing the bottleneck bandwidth. Finally improvements to the basic error discriminator have been proposed by using the multiple drops action (MDA) for both transmission and congestion errors. The results showed improvements in the performance as well as decreases in the congestion loss rates when compared to a similar error discriminator.
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Pesonen, Joonas. "Stochastic Estimation and Control over WirelessHART Networks: Theory and Implementation". Thesis, KTH, Reglerteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-105172.

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There is currently a high interest of replacing traditional wired networks with wireless technology. Wireless communications can provide several advantages for process industries with aspect to exibility, maintenance and installation. The WirelessHART protocol provides a standardized wireless technology for large automation networks that explore wireless communication. However, wireless networks introduce time delays and losses in the communication system, which denes requirements for designing estimators and controllers that can tolerate and compensate for the losses and delays. This thesis consists of several contributions. First, we develop tools for analyzing the delay and loss probabilities in WirelessHART networks with unreliable transmission links. For given network topology, routing and transmission schedule the developed tools can be used to determine the latency distributions of individual packets and quantify that a packet will arrive within a prescribed deadline. Secondly, we consider estimation and control when sensor and control messages are sent over WirelessHART networks. The network losses and latencies are modelled and compensated for by timevarying Kalman lters and LQG controllers. Both optimal controllers, of high implementation complexity, and simple suboptimal schemes are considered. The control strategies are evaluated on a simulation model of a flotation process in a Boliden mine where the wired sensors of the existent solution are replaced by a WirelessHART network scheduled for time-optimal data collection. Finally, we implement a WirelessHART-compliant sensor on a Tmote sky device and perform real experiments of wireless control on a water tank process.
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Libros sobre el tema "Control over networks"

1

Marchese, Mario. QoS over heterogeneous networks. Chichester: John Wiley & Sons, 2007.

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Mahmoud, Magdi S. Control and Estimation Methods over Communication Networks. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04153-7.

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Liu, Qinyuan, Zidong Wang y Xiao He. Stochastic Control and Filtering over Constrained Communication Networks. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-00157-5.

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Torsten, Braun, ed. End-to-end quality of service over heterogeneous networks. Berlin: Springer-Verlag, 2008.

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Bai, Haowei. Achieving end-to-end QoS in the next generation Internet: Integrated services over differentiated service networks. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2001.

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Frantz, Brian D. ATM QoS experiments using TCP applications: Performance of TCP/IP over ATM in a variety of errored links. [Cleveland, Ohio]: National Aeronautics and Space Administration, Glenn Research Center, 2001.

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Auditor, Nevada Legislature Legislative. Audit report, State of Nevada, security over selected state agency Internet sites. Carson City, Nev: Legislative Counsel Bureau, 2006.

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Levin, Robert E. Space Surveillance Network: Appropriate controls needed over data access. Washington, D.C: United States General Accounting Office., 2002.

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Office, General Accounting. Computer security: FAA needs to improve controls over use of foreign nationals to remediate and review software : report to the Chairman, Committee on Science, House of Representatives. Washington, D.C. (P.O. Box 37050, Washington, D.C. 20013): The Office, 1999.

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Office, General Accounting. Information security: Controls over unofficial access to classified information : report to the Chairman, Subcommittee on Federal Services, Post Office, and Civil Service, Committee on Governmental Affairs, U.S. Senate. Washington, D.C: U.S. General Accounting Office, 1989.

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Capítulos de libros sobre el tema "Control over networks"

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Gupta, Vijay. "Estimation and Control over Networks". En Encyclopedia of Systems and Control, 354–60. London: Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5058-9_220.

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Gupta, Vijay. "Estimation and Control over Networks". En Encyclopedia of Systems and Control, 1–7. London: Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-5102-9_220-1.

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Gupta, Vijay. "Estimation and Control over Networks". En Encyclopedia of Systems and Control, 693–98. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-44184-5_220.

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Elia, Nicola, Jing Wang y Andalam Satya Mohan Vamsi. "Computing over Unreliable Communication Networks". En Information and Control in Networks, 241–75. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02150-8_8.

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Pavel, Lacra. "Nash Equilibrium Seeking over Networks". En Encyclopedia of Systems and Control, 1–8. London: Springer London, 2020. http://dx.doi.org/10.1007/978-1-4471-5102-9_100143-1.

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Pavel, Lacra. "Nash Equilibrium Seeking over Networks". En Encyclopedia of Systems and Control, 1411–18. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-44184-5_100143.

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Hespanha, João P. y Alexandre R. Mesquita. "Networked Control Systems: Estimation and Control Over Lossy Networks". En Encyclopedia of Systems and Control, 842–49. London: Springer London, 2015. http://dx.doi.org/10.1007/978-1-4471-5058-9_152.

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Hespanha, Joao y Alexandre R. Mesquita. "Networked Control Systems: Estimation and Control Over Lossy Networks". En Encyclopedia of Systems and Control, 1–9. London: Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-5102-9_152-1.

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Hespanha, João P. y Alexandre R. Mesquita. "Networked Control Systems: Estimation and Control over Lossy Networks". En Encyclopedia of Systems and Control, 1430–36. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-44184-5_152.

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Zaidi, Ali A., Tobias J. Oechtering, Serdar Yüksel y Mikael Skoglund. "Stabilization and Control over Gaussian Networks". En Information and Control in Networks, 39–85. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-02150-8_2.

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Actas de conferencias sobre el tema "Control over networks"

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Irwin, G. W. "Control over wireless networks". En IET Irish Signals and Systems Conference (ISSC 2006). IEE, 2006. http://dx.doi.org/10.1049/cp:20060409.

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Nadini, Matthieu, Alessandro Rizzo y Maurizio Porfiri. "Contagion Processes Over Temporal Networks With Time-Varying Backbones". En ASME 2019 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/dscc2019-9054.

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Abstract Predicting the diffusion of real-world contagion processes requires a simplified description of human-to-human interactions. Temporal networks offer a powerful means to develop such a mathematically-transparent description. Through temporal networks, one may analytically study the co-evolution of the contagion process and the network topology, as well as incorporate realistic feedback-loop mechanisms related to individual behavioral changes to the contagion. Despite considerable progress, the state-of-the-art does not allow for studying general time-varying networks, where links between individuals dynamically switch to reflect the complexity of social behavior. Here, we tackle this problem by considering a temporal network, in which reducible, associated with node-specific properties, and irreducible links, describing dyadic social ties, simultaneously vary over time. We develop a general mean field theory for the Susceptible-Infected-Susceptible model and conduct an extensive numerical campaign to elucidate the role of network parameters on the average degree of the temporal network and the epidemic threshold. Specifically, we describe how the interplay between reducible and irreducible links influences the disease dynamics, offering insights towards the analysis of complex dynamical networks across science and engineering.
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Garcia, Eloy, Giorgio Vitaioli y Panos J. Antsaklis. "Model-based tracking control over networks". En Control (MSC). IEEE, 2011. http://dx.doi.org/10.1109/cca.2011.6044514.

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Pu, Ye, Jingge Zhu, Karl H. Johansson, Kannan Ramchandran y Claire J. Tomlin. "Coded Control over Lossy Networks". En 2018 Annual American Control Conference (ACC). IEEE, 2018. http://dx.doi.org/10.23919/acc.2018.8431277.

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Stai, Eleni, John S. Baras y Symeon Papavassiliou. "Social networks over wireless networks". En 2012 IEEE 51st Annual Conference on Decision and Control (CDC 2012). IEEE, 2012. http://dx.doi.org/10.1109/cdc.2012.6425837.

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Zhu, Bonnie, Bruno Sinopoli, Kameshwar Poolla y Shankar Sastry. "Estimation over Wireless Sensor Networks". En 2007 American Control Conference. IEEE, 2007. http://dx.doi.org/10.1109/acc.2007.4283115.

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Lai, Yongbo y Guoping Lu. "Robust H∞ control of singular systems over networks with data packet dropouts". En 2012 UKACC International Conference on Control (CONTROL). IEEE, 2012. http://dx.doi.org/10.1109/control.2012.6334733.

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Askarzadeh, Zahra, Rui Fu, Abhishek Halder, Yongxin Chen y Tryphon T. Georgiou. "Opinion Dynamics over Influence Networks". En 2019 American Control Conference (ACC). IEEE, 2019. http://dx.doi.org/10.23919/acc.2019.8815341.

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Koufogiannis, Fragkiskos y George J. Pappas. "Diffusing private data over networks". En 2016 American Control Conference (ACC). IEEE, 2016. http://dx.doi.org/10.1109/acc.2016.7525223.

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Willert, Volker, Dominik Haumann y Stefan Gering. "Decentralized Bayesian consensus over networks". En 2014 European Control Conference (ECC). IEEE, 2014. http://dx.doi.org/10.1109/ecc.2014.6862220.

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Informes sobre el tema "Control over networks"

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Mesbahi, Mehran. Dynamic Security and Robustness of Networked Systems: Random Graphs, Algebraic Graph Theory, and Control over Networks. Fort Belvoir, VA: Defense Technical Information Center, febrero de 2012. http://dx.doi.org/10.21236/ada567125.

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Martini, L., E. Rosen, G. Heron y A. Malis. Encapsulation Methods for Transport of PPP/High-Level Data Link Control (HDLC) over MPLS Networks. RFC Editor, septiembre de 2006. http://dx.doi.org/10.17487/rfc4618.

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Yavatkar, R., D. Hoffman, Y. Bernet, F. Baker y M. Speer. SBM (Subnet Bandwidth Manager): A Protocol for RSVP-based Admission Control over IEEE 802-style networks. RFC Editor, mayo de 2000. http://dx.doi.org/10.17487/rfc2814.

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Schoenwaelder, J. Simple Network Management Protocol Over Transmission Control Protocol Transport Mapping. RFC Editor, diciembre de 2002. http://dx.doi.org/10.17487/rfc3430.

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Okamoto, O., M. Maruyama y T. Sajima. Forwarding Media Access Control (MAC) Frames over Multiple Access Protocol over Synchronous Optical Network/Synchronous Digital Hierarchy (MAPOS). RFC Editor, noviembre de 2002. http://dx.doi.org/10.17487/rfc3422.

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Saifoloi, Malama, Evangelia Papoutsaki, Marcus Williams, Usha Sundar Harris y Munawwar Naqvi. Participatory Video and the Pacifica Mamas: A Pilot Project. Unitec ePress, agosto de 2016. http://dx.doi.org/10.34074/emed.044.

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Emerging literature highlights that in the Pacific, the use of participatory video (PV) is a new trend in research and community action. It can be employed as a tool to empower communities to have agency over their media outputs, meaning that they have full control of the content creation, production and distribution processes. But to date there is still a dearth of studies that fully explore its potential use in different contexts, especially within diasporic networks. To address this gap, a pilot project was undertaken where PV methodologies were tested in collaboration with a diasporic Pacific community group based in West Auckland, New Zealand. This report feeds back on the overall process of developing the pilot project.
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Seginer, Ido, Louis D. Albright y Robert W. Langhans. On-line Fault Detection and Diagnosis for Greenhouse Environmental Control. United States Department of Agriculture, febrero de 2001. http://dx.doi.org/10.32747/2001.7575271.bard.

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Background Early detection and identification of faulty greenhouse operation is essential, if losses are to be minimized by taking immediate corrective actions. Automatic detection and identification would also free the greenhouse manager to tend to his other business. Original objectives The general objective was to develop a method, or methods, for the detection, identification and accommodation of faults in the greenhouse. More specific objectives were as follows: 1. Develop accurate systems models, which will enable the detection of small deviations from normal behavior (of sensors, control, structure and crop). 2. Using these models, develop algorithms for an early detection of deviations from the normal. 3. Develop identifying procedures for the most important faults. 4. Develop accommodation procedures while awaiting a repair. The Technion team focused on the shoot environment and the Cornell University team focused on the root environment. Achievements Models: Accurate models were developed for both shoot and root environment in the greenhouse, utilizing neural networks, sometimes combined with robust physical models (hybrid models). Suitable adaptation methods were also successfully developed. The accuracy was sufficient to allow detection of frequently occurring sensor and equipment faults from common measurements. A large data base, covering a wide range of weather conditions, is required for best results. This data base can be created from in-situ routine measurements. Detection and isolation: A robust detection and isolation (formerly referred to as 'identification') method has been developed, which is capable of separating the effect of faults from model inaccuracies and disturbance effects. Sensor and equipment faults: Good detection capabilities have been demonstrated for sensor and equipment failures in both the shoot and root environment. Water stress detection: An excitation method of the shoot environment has been developed, which successfully detected water stress, as soon as the transpiration rate dropped from its normal level. Due to unavailability of suitable monitoring equipment for the root environment, crop faults could not be detected from measurements in the root zone. Dust: The effect of screen clogging by dust has been quantified. Implications Sensor and equipment fault detection and isolation is at a stage where it could be introduced into well equipped and maintained commercial greenhouses on a trial basis. Detection of crop problems requires further work. Dr. Peleg was primarily responsible for developing and implementing the innovative data analysis tools. The cooperation was particularly enhanced by Dr. Peleg's three summer sabbaticals at the ARS, Northem Plains Agricultural Research Laboratory, in Sidney, Montana. Switching from multi-band to hyperspectral remote sensing technology during the last 2 years of the project was advantageous by expanding the scope of detected plant growth attributes e.g. Yield, Leaf Nitrate, Biomass and Sugar Content of sugar beets. However, it disrupted the continuity of the project which was originally planned on a 2 year crop rotation cycle of sugar beets and multiple crops (com and wheat), as commonly planted in eastern Montana. Consequently, at the end of the second year we submitted a continuation BARD proposal which was turned down for funding. This severely hampered our ability to validate our findings as originally planned in a 4-year crop rotation cycle. Thankfully, BARD consented to our request for a one year extension of the project without additional funding. This enabled us to develop most of the methodology for implementing and running the hyperspectral remote sensing system and develop the new analytical tools for solving the non-repeatability problem and analyzing the huge hyperspectral image cube datasets. However, without validation of these tools over a ful14-year crop rotation cycle this project shall remain essentially unfinished. Should the findings of this report prompt the BARD management to encourage us to resubmit our continuation research proposal, we shall be happy to do so.
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Author, Not Given. Report on Management Controls Over the Licensing Support Network for the Yucca Mountain Repository. Office of Scientific and Technical Information (OSTI), mayo de 2004. http://dx.doi.org/10.2172/1184561.

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Haberland, Nicole, Erica Chong y Hillary J. Bracken. Married adolescents: An overview. Population Council, 2004. http://dx.doi.org/10.31899/pgy22.1005.

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The nascent work reviewed in this compendium indicates that married girls experience significant social isolation and limited autonomy. Across the studies examined, on indicators of mobility, exposure to media, and social networks, married girls are consistently disadvantaged compared to their unmarried peers. Similarly, across studies, on most of the domains explored here (mobility, decision-making, control over economic resources, and possibly gender-based violence), married girls tend to be less empowered and more isolated than slightly older married females. There may also be health issues associated with marriage during adolescence. Married girls are frequently at a disadvantage in terms of reproductive health information—particularly regarding STIs and HIV. First-time mothers, many of whom are adolescents, by virtue of their parity may have distinct maternal health needs and risks. Finally, early marriage potentially plays a role in exposing girls and young women to severe reproductive health risks, including HIV. Many of these elevated health risks may be largely, though not exclusively, derivative of their social vulnerability.
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DeAnna, Dixon y Hodo Wayne. Finite element analysis of quoin block deterioration and load transfer mechanisms in miter gates : pintle and pintle connections. Engineer Research and Development Center (U.S.), junio de 2021. http://dx.doi.org/10.21079/11681/40842.

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The U.S. Army Corps of Engineers (USACE) currently operates and maintains approximately 193 commercially active lock sites with 239 locks and dams spanning nearly 12,000 miles. These networks of water channels are used to transport 600 million tons of domestic cargo, generating $405 billion in revenue annually. Nearly 60% of these structures in operation are over 50 years old and have reached design life. A failure of the miter gates could result in a major negative impact on the economy and on the ability to maintain flood control. Administrators need recommendations to better prioritize maintenance and repair of the USACE miter gates. This work investigated the influence of miter gate’s quoin block degradation on load transfer to the pintle and/or pintle connections. Results of finite element analysis are reported for the quoin block degradation simulated levels of 0%, 25%, 50%, and 75%. The parametric study shows the overstressed regions are the pintle neck and bolt-hole regions. To improve pintle designs so they may better mitigate detrimental environmental based deterioration effects, this work recommends (1) increasing the thickness of the bolt-hole connection region and (2) adding ribbing reinforcement around the neck area of the pintle.
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