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Dissertations / Theses on the topic 'Dynamic Wireless Sensor Networks'

Author: Grafiati

Published: 3 June 2025

Last updated: 1 August 2025

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1

Yeh, Cheng-tai. "Dynamic reconfiguration techniques for wireless sensor networks." Connect with this title, 2008. http://scholarworks.umass.edu/theses/119/.

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Yang, Shusen. "Distributed optimisation in dynamic wireless sensor networks." Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/19676.

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Over the past decade, Wireless Sensor Networks (WSNs) have evolved into a hot interdisciplinary research area. WSNs are generally considered to be statically deployed, but in reality they are dynamic in nature due to a variety of characteristics including fluctuating wireless link quality and clock drift. Furthermore, new WSN topologies and applications have introduced more dynamics, such as time-varying power resources, data traffic patterns, and mobile sensing. These dynamics pose challenges to the theoretical understanding of WSN behaviours and the design of practical algorithms. This thesi

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Parthasarathy, Rashmi. "Robust dynamic reprogramming of wireless sensor networks." Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Fall2009/r_parthasarathy_112309.pdf.

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Thesis (M.S. in computer science)--Washington State University, December 2009.<br>Title from PDF title page (viewed on Jan. 20, 2010). "School of Electrical Engineering and Computer Science." Includes bibliographical references (p. 60-64).

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Papadopoulos, Georgios. "Improving medium access for dynamic wireless sensor networks." Thesis, Strasbourg, 2015. http://www.theses.fr/2015STRAD034/document.

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L’Internet des objets amène des contraintes uniques et une immense variété d’applications. Ceci oblige à être capable d’établir des communications efficaces en énergie (et néanmoins à faible délai) au sein de réseaux fortement dynamiques. Nous nous sommes concentrés sur l'amélioration du contrôle d'accès au medium (MAC), afin d’optimiser la gestion des communications sans fils,principale source de consommation d'énergie dans ces réseaux. Cette thèse discute de l’auto adaptation de solutions MAC asynchrones et montre qu’une coopération localisée entre objets communicants permet de maintenir un

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PILLONI, VIRGINIA. "Dynamic deployment of applications in wireless sensor networks." Doctoral thesis, Università degli Studi di Cagliari, 2013. http://hdl.handle.net/11584/266095.

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Over the past decades, the progress inWirelss Sensor Network (WSN) technology, both in terms of processing capability and energy consumption reduction, has evolved WSNs into complex systems that can gather information about the monitored environment and make prompt and intelligent decisions. In the beginning, military applications drove the research and development of WSNs, with large-scale acoustic systems for underwater surveillance, radar systems for the collection of data on air targets, and Unattended Ground Sensor (UGS) systems for ground target detection. Typical civil WSNs are basical

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Cook, Steven Charles. "Dynamic Near Field Communication Pairing For Wireless Sensor Networks." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3737.

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Wireless sensor network (WSN) nodes communicate securely using pre-installed cryptographic keys. Although key pre-installation makes nodes less expensive, the technical process of installing keys prevents average users from deploying and controlling their own WSNs. Wireless pairing enables users to set up WSNs without pre-installing keys, but current pairing techniques introduce numerous concerns regarding security, hardware expense, and usability. This thesis introduces dynamic Near Field Communication (NFC) pairing, a new pairing technique designed for WSNs. This pairing overcomes the limita

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Barragan, Dante E. "Optimal placement of sensors for network lifetime extension in wireless sensor networks with dynamic routing." To access this resource online via ProQuest Dissertations and Theses @ UTEP, 2008. http://0-proquest.umi.com.lib.utep.edu/login?COPT=REJTPTU0YmImSU5UPTAmVkVSPTI=&clientId=2515.

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Codeluppi, Rossano <1974&gt. "Design of wireless sensor networks for fluid dynamic applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/929/1/Tesi_Codeluppi_Rossano.pdf.

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In fluid dynamics research, pressure measurements are of great importance to define the flow field acting on aerodynamic surfaces. In fact the experimental approach is fundamental to avoid the complexity of the mathematical models for predicting the fluid phenomena. It’s important to note that, using in-situ sensor to monitor pressure on large domains with highly unsteady flows, several problems are encountered working with the classical techniques due to the transducer cost, the intrusiveness, the time response and the operating range. An interesting approach for satisfying the previo

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Codeluppi, Rossano <1974&gt. "Design of wireless sensor networks for fluid dynamic applications." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2008. http://amsdottorato.unibo.it/929/.

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In fluid dynamics research, pressure measurements are of great importance to define the flow field acting on aerodynamic surfaces. In fact the experimental approach is fundamental to avoid the complexity of the mathematical models for predicting the fluid phenomena. It’s important to note that, using in-situ sensor to monitor pressure on large domains with highly unsteady flows, several problems are encountered working with the classical techniques due to the transducer cost, the intrusiveness, the time response and the operating range. An interesting approach for satisfying the previo

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10

Dang, Thanh Xuan. "Scalable and Efficient Tasking for Dynamic Sensor Networks." PDXScholar, 2011. https://pdxscholar.library.pdx.edu/open_access_etds/269.

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Sensor networks including opportunistic networks of sensor-equipped smartphones as well as networks of embedded sensors can enable a wide range of applications including environmental monitoring, smart grids, intelligent transportation, and healthcare. In most real-world applications, to meet end-user requirements, the network operator needs to define and update the sensors' tasks dynamically, such as updating the parameters for sensor data collection or updating the sensors' code. Tasking sensor networks is necessary to reduce the effort in programming sensor networks. However, it is challeng

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11

Uluagac, Arif Selcuk. "A secure communication framework for wireless sensor networks." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34713.

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Today, wireless sensor networks (WSNs) are no longer a nascent technology and future networks, especially Cyber-Physical Systems (CPS) will integrate more sensor-based systems into a variety of application scenarios. Typical application areas include medical, environmental, military, and commercial enterprises. Providing security to this diverse set of sensor-based applications is necessary for the healthy operations of the overall system because untrusted entities may target the proper functioning of applications and disturb the critical decision-making processes by injecting false informatio

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Al-Hoqani, Noura Y. S. "In-network database query processing for wireless sensor networks." Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/36226.

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In the past research, smart sensor devices have become mature enough for large, distributed networks of such sensors to start to be deployed. Such networks can include tens or hundreds of independent nodes that can perform their functions without human interactions such as recharging of batteries, the configuration of network routes and others. Each of the sensors in the wireless sensor network is considered as microsystem, which consists of memory, processor, transducers and low bandwidth as well as a low range radio transceiver. This study investigates an adaptive sampling strategy for WSS a

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Yoon, Suk-Un. "Dynamic Radio Resource Allocation in Wireless Sensor and Cognitive Radio Networks." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1259768264.

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Wu, Jian. "Reliable routing protocols for dynamic wireless ad hoc and sensor networks." Enschede : University of Twente [Host], 2007. http://doc.utwente.nl/58410.

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Rahman, Mustazibur. "Management of City Traffic, Using Wireless Sensor Networks with Dynamic Model." Thèse, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/30916.

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Road network of a region is of a paramount importance in the overall development. Management of road traffic is a key factor for the city authority and reducing the road traffic congestion is a significant challenge in this perspective. In this thesis, a Wireless Sensor Network (WSN) based road-traffic monitoring scheme with dynamic mathematical traffic model is presented that will not necessarily include all adjacent intersections of a block; rather the important major intersections of a city. The objective of this scheme is to reduce the congestion by re-routing the vehicles to better perfor

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Barbosa, Pedro. "Scalable wireless sensor networks for dynamic communication environments : simulation and modelling." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/177575/.

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This thesis explores the deployment of Wireless Sensor Networks (WSNs) on localised maritime events. In particular, it will focus on the deployment of a WSN at sea and estimating what challenges derive from the environment and how they affect communication. This research addresses these challenges through simulation and modelling of communication and environment, evaluating the implications of hardware selection and custom algorithm development. The first part of this thesis consists of the analysis of aspects related to the Medium Access Control layer of the network stack in large-scale netwo

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Jaroo, Amer S. "Bridge Load Rating Using Dynamic Response Collected Through Wireless Sensor Networks." Youngstown State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1391692831.

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Hamid, Hiwa F. "Bridge Condition Assessment Using Dynamic Response Collected Through Wireless Sensor Networks." Youngstown State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1391776500.

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Nittala, Venkata Lakshmana Prasanth. "Routing algorithms for large scale wireless sensor networks." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1449.

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Routing in sensor networks is a challenging issue due to inherent constraints such as power, memory, and CPU processing capabilities. In this thesis, we assume an All to All communication mode in an N × N grid sensor network. We explore routing algorithms which load balance the network without compromising the shortest paths constrain. We analyzed the Servetto method and studied two routing strategies, namely Horizontal-Vertical routing and Zigzag routing. The problem is divided into two scenarios, one being the static case (without failed nodes), and the other being the dynamic case (with fai

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Jung, Eun Jae. "Creation and maintenance of a communication tree in wireless sensor networks." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2038.

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Namvar, Gharehshiran Omid. "Distributed dynamic coalition formation for bearings-only localization in wireless sensor networks." Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/19003.

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Lifetime maximization is a key challenge in the design of sensor-network-based tracking applications. In this dissertation, formation of optimal coalitions of nodes is investigated for data acquisition in bearings-only target localization such that the average sleep times allocated to the nodes are maximized. Targets are assumed to be localized with a pre-defined accuracy where the determinant of the Bayesian Fisher information matrix (B-FIM) is used as the metric for estimation accuracy. Cooperative game theory is utilized as a tool to devise a distributed dynamic coalition formation algorith

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Ranganathan, Aravind. "Dynamic Forests and Load Balancing for Data Gathering in Wireless Sensor Networks." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1276534625.

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Rong, Du. "Wireless Sensor Networks in Smart Cities : The Monitoring of Water Distribution Networks Case." Licentiate thesis, KTH, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-185453.

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The development of wireless sensor networks (WSNs) is making it possible to monitor our cities. Due to the small size of the sensor nodes, and their capabilities of transmitting data remotely, they can be deployed at locations that are not easy or impossible to access, such as the pipelines of water distribution networks (WDNs), which plays an important role in protecting environment and securing public health. The design of WSNs for WDNs faces major challenges. Generally, WSNs are resource-limited because most of the sensor nodes are battery powered. Thus, their resource allocation has to b

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Haghighi, M. "Agent-based decentralised adaptive dynamic data gathering from large-scale wireless sensor networks." Thesis, University of Bristol, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.651314.

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Wireless Sensor Networks (WSNs) have become a mainstream technology for environmental monitoring, for observing dynamic changes in variables of interest, over extended periods of time via large-scale networks of sensors. In recent years, many engineering disciplines have also become reliant on WSNs to detect and track certain events by monitoring various parameters through a number of spatially distributed sensor/ actuator nodes. WSNs have a wide range of applications including healthcare, military, and monitoring both of built structures and of natural environments and habitats. In all such f

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Pillutla, Laxminarayana S. "Resource management in wireless networks." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/2829.

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This thesis considers resource management issues in wireless sensor networks (WSNs), wireless local area networks (WLANs), and cognitive radio (CR) networks. Since energy is a critical resource in WSNs, we consider energy minimization techniques based on explicit node cooperation and distributed source coding (DSC). The explicit node cooperation based on space time block codes (STBC) improves energy efficiency of WSNs, by reducing the energy consumption per bit of each sensor node. The DSC on the other hand exploits the spatial correlation in WSNs, and thus reduces the data generated in a WSN.

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Shu, Weihuan. "Optimal sampling rate assignment with dynamic route selection for real-time wireless sensor networks." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=32351.

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The allocation of computation and communication resources in a manner that optimizes aggregate system performance is a crucial aspect of system management. Wireless sensor network poses new challenges due to the resource constraints and real-time requirements. Existing work has dealt with the real-time sampling rate assignment problem, under single processor case and network case with static routing environment. For wireless sensor networks, in order to achieve better overall network performance, routing

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Kuntz, Romain. "Medium Access Control Facing the Dynamics of Wireless Sensor Networks." Phd thesis, Université de Strasbourg, 2010. http://tel.archives-ouvertes.fr/tel-00521389.

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Un réseau de capteurs sans fil (Wireless Sensor Network, WSN) consiste en une distribution spatiale d'équipements embarqués autonomes, qui coopèrent de manière à surveiller l'environnement de manière non-intrusive. Les données collectées par chaque capteur (tels que la température, des vibrations, des sons, des mouvements etc.) sont remontées de proche en proche vers un puits de collecte en utilisant des technologies de communication sans fil. Voilà une décennie que les contraintes inhérentes à ces réseaux attirent l'attention de la communauté scientifique. Ainsi, de nombreuses améliorations à

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Demigha, Oualid. "Energy Conservation for Collaborative Applications in Wireless Sensor Networks." Thesis, Bordeaux, 2015. http://www.theses.fr/2015BORD0058/document.

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Les réseaux de capteurs sans fil est une technologie nouvelle dont les applications s'étendent sur plusieurs domaines: militaire, scientifique, médicale, industriel, etc. La collaboration entre les noeuds capteurs, caractérisés par des capacités minimales en termes de capture, de transmission, de traitement et d'énergie, est une nécessité pour réaliser des tâches aussi complexes que la collecte des données, le pistage des objets mobiles, la surveillance des zones sensibles, etc. La contrainte matérielle sur le développement des ressources énergétiques des noeuds capteurs est persistante. D'où

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Hiremath, Naveen. "SenMinCom pervasive distributed dynamic sensor data mining for effective commerce /." unrestricted, 2008. http://etd.gsu.edu/theses/available/etd-07172008-230611/.

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Thesis (M.S.)--Georgia State University, 2008.<br>Title from file title page. Yanqing Zhang, committee chair; Rajshekhar Sunderraman, Ying Zhu, committee members. Electronic text (64 p. : ill. (some col.)) : digital, PDF file. Description based on contents viewed Nov. 19, 2008. Includes bibliographical references (p. 59-64).

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Radwan, Mohsen Nada Ashraf. "Lightweight & Efficient Authentication for Continuous Static and Dynamic Patient Monitoring in Wireless Body Sensor Networks." Thesis, Université d'Ottawa / University of Ottawa, 2019. http://hdl.handle.net/10393/39938.

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The emergence of the Internet of Things (IoT) brought about the widespread of Body Sensor Networks (BSN) that continuously monitor patients using a collection of tiny-powered and lightweight bio-sensors offering convenience to both physicians and patients in the modern health care environment. Unfortunately, the deployment of bio-sensors in public hacker-prone settings means that they are vulnerable to various security threats exposing the security and privacy of patient information. This thesis presents an authentication scheme for each of two applications of medical sensor networks. The firs

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Souccar, Karim. "Transmission power control for wireless sensors networks." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001664.

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Al-Hamadi, Hamid Helal. "Dynamic Redundancy Management of Multisource Multipath Routing Integrated with Voting-based Intrusion Detection in Wireless Sensor Networks." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/47681.

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Wireless sensor networks (WSNs) are frequently deployed unattended and can be easily captured or compromised. Once compromised, intrusion prevention methods such as encryption can no longer provide any protection, as a compromised node is considered a legitimate node and possesses the secret key for decryption. Compromised nodes are essentially inside attackers and can perform various attacks to break the functionality of the system. Thus, for safety-critical WSNs, intrusion detection techniques must be used to detect and remove inside attackers and fault tolerance techniques must be used to t

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Kandukuri, Somasekhar Reddy. "Spatio-Temporal Adaptive Sampling Techniques for Energy Conservation in Wireless Sensor Networks." Thesis, La Réunion, 2016. http://www.theses.fr/2016LARE0021/document.

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La technologie des réseaux de capteurs sans fil démontre qu'elle peut être très utile dans de nombreuses applications. Ainsi chaque jour voit émerger de nouvelles réalisations dans la surveillance de notre environnement comme la détection des feux de forêt, l'approvisionnement en eau. Les champs d'applications couvrent aussi des domaines émergents et sensibles pour la population avec les soins aux personnes âgées ou les patients récemment opérés dans le cadre. L'indépendance des architectures RCSFs par rapport aux infrastructures existantes permet aux d'être déployées dans presque tous les sit

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Zitouni, Rafik. "Software defined radio for cognitive wireless sensor networks : a reconfigurable IEEE 802.15.4 reconfigurable." Thesis, Paris Est, 2015. http://www.theses.fr/2015PESC1126/document.

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Le nombre croissant d'applications des Réseaux de Capteurs Sans Fils (RCSFs) a conduit les industriels à concevoir ces réseaux avec une couche Physique (PHY) suivant le standard IEEE 802.15.4. Actuellement, cette couche est implémentée en matériel souffrant d'un manque de flexibilité du changement des paramètres radio, telles que bandes de fréquences et modulations. Ce problème est accentué par la rareté du spectre radio fréquences. La Radio Logiciel (RL) est une nouvelle solution pour reconfigurer plus facilement ces paramètres. A partir d'une RL, il est possible de développer une radio cogni

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SAYADI, Afef. "Medium access protocol (MAC) design for wireless multi-hop ad hoc and sensor networks." Phd thesis, Institut National des Télécommunications, 2013. http://tel.archives-ouvertes.fr/tel-00997665.

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Wireless multi-hop ad hoc and sensor networks provide a promising solution to ensure ubiquitous connectivity for the Future Internet. Good network connectivity requires designing a reliable Medium Access Control (MAC) protocol, which is a challenging task in the ad hoc and sensor environments. The broadcast and shared nature of the wireless channel renders the bandwidth resources limited and expose the transmissions to relatively high collisions and loss rates. The necessity to provide guaranteed Quality of Service (QoS) to the upper layers triggered the design of conflict-free MAC protocols.

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Sayadi, Afef. "Medium access protocol (MAC) design for wireless multi-hop ad hoc and sensor networks." Thesis, Evry, Institut national des télécommunications, 2013. http://www.theses.fr/2013TELE0002/document.

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Les réseaux sans fil multi-sauts ad hoc et les réseaux de capteurs présentent une solution prometteuse pour assurer une connectivité quasi-permanente dans l'Internet du Futur. Cette connectivité, néanmoins, nécessite la conception d'un protocole d'accès au canal radio fiable, ce qui défi les caractéristiques hostiles et instables des réseaux ad hoc et des réseaux de capteurs. Cet environnement, en effet, est caractérisé par la rareté des ressources radio disponibles, la perte de la bande passante due aux collisions et aux interférences. La nécessité de garantir une meilleure qualité de service

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Toshniwal, Smita. "Dynamic Mobility of Multiple Base Stations in an Event driven Static Wireless Sensor Network." University of Cincinnati / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1249666898.

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Koliousis, Alexandros K. "An elementary proposition on the dynamic routing problem in wireless networks of sensors." Thesis, University of Glasgow, 2010. http://theses.gla.ac.uk/1956/.

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The routing problem (finding an optimal route from one point in a computer network to another) is surrounded by impossibility results. These results are usually expressed as lower and upper bounds on the set of nodes (or the set of links) of a network and represent the complexity of a solution to the routing problem (a routing function). The routing problem dealt with here, in particular, is a dynamic one (it accounts for network dynamics) and concerns wireless networks of sensors. Sensors form wireless links of limited capacity and time-variable quality to route messages amongst themselves. I

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Venkataraman, Aparna. "Dynamic Deployment strategies in Ad-Hoc Sensor networks to optimize Coverage and Connectivity in Unknown Event Boundary detection." University of Cincinnati / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1313773833.

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Gruhn, Helena [Verfasser], Sabine [Akademischer Betreuer] Glesner, Sabine [Gutachter] Glesner, Johan [Gutachter] Eker, and Uwe [Gutachter] Nestmann. "A framework for reliable and dynamic wireless sensor-actuator networks / Helena Gruhn ; Gutachter: Sabine Glesner, Johan Eker, Uwe Nestmann ; Betreuer: Sabine Glesner." Berlin : Technische Universität Berlin, 2016. http://d-nb.info/1156177073/34.

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Aguiar, Alexei Barbosa de. "Tackling the problem of dynamic coverage and connectivity in wireless sensor networks with an extended version of the generate an dsolve methodology." Universidade de Fortaleza, 2009. http://dspace.unifor.br/handle/tede/84413.

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Made available in DSpace on 2019-03-29T23:22:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-12-28<br>Wireless sensor networks (WSNs) are very usefull in a wide range of applications. However, the sensor nodes that composes these WSNs are very limited devices. Their batteries cannot supply energy for a lifetime as long as desired. In a particular scenario, the areas where these devices are deployed are inaccessible so these batteries replacements are unfeasible. In this situation the energy consumption plays a very important role and must be well optimized. Recent literature prese

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Le, Xuan-Chien. "Improving performance of non-intrusive load monitoring with low-cost sensor networks." Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1S019/document.

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Dans les maisons et bâtiments intelligents, il devient nécessaire de limiter l'intervention humaine sur le système énergétique, afin de fluctuer automatiquement l'énergie consommée par les appareils consommateurs. Pour cela, un système de mesure de la consommation électrique d'équipements est aussi nécessaire et peut être déployé de deux façons : intrusive ou non-intrusive. La première solution consiste à relever la consommation de chaque appareil, ce qui est inenvisageable à une grande échelle pour des raisons pratiques liées à l'entretien et aux coûts. Donc, la solution non-intrusive (NILM p

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Xie, Qing Yan. "K-Centers Dynamic Clustering Algorithms and Applications." University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1384427644.

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Botta, Miroslav. "Optimalizace odhadu vzdálenosti v bezdrátové ad-hoc síti." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218968.

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The work deals with processing of radio received signal strength in IEEE 802.15.4 which communicates in 2.4 GHz ISM band. The signal is processed by the three approximation methods. They are tested for their effectiveness for measuring in different radio environments. Furthermore, the work deals with calculation of the most efficient coefficients for distance calculating by radio transmission fucntions. It defines the issues of such solutions on practical examples. The work also deals with the experimental algorithm for implementing dynamic calibration of the coefficients. It describes the des

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Téllez, Garzón Johan Leandro. "Metodologia de sensoriamento e acesso dinâmico aos canais em redes de sensores sem fio." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/165115.

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A melhora na eficiência do uso do espectro de radiofrequência é fundamental para permitir um desempenho adequado dos diversos sistemas sem fio cuja complexidade e requerimentos aumentam a cada dia. O panorama atual de atribuição de canais é estático, tolerando assim, que o espectro de radiofrequência seja usado de forma desequilibrada, gerando com isso, problemas de coexistência em algumas faixas e subutilização de recursos em outras. Para contornar esse problema, tem sido proposta a ideia de introduzir algoritmos de cognição nos dispositivos sem fio, a fim de permitir um modelo de alocação di

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Diao, Xunxing. "A resource-aware embedded commucation system for highly dynamic networks." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2011. http://tel.archives-ouvertes.fr/tel-00715649.

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Chaque année en Europe, 1.300.000 accidents de la route ont comme conséquence 1.700.000 blessés. Le coût financier d'accidents de la route est évalué à 160 milliards d'euros (approximativement le même coût aux Etats-Unis). VANET (Vehicular Ad-hoc NETwork) est une des technologies clés qui peut permettre de réduire d'une façon significative le nombre d'accidents de la route (e.g. message d'urgence signalant la présence d'un obstacle ou d'un véhicule en cas de brouillard). En plus de l'amélioration de la sécurité et du confort des conducteurs et des passagers, VANET peut contribuer à beaucoup d'

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47

Liu, Xing. "Hybrid real-time operating system integrated with middleware for resource-constrained wireless sensor nodes." Thesis, Clermont-Ferrand 2, 2014. http://www.theses.fr/2014CLF22472/document.

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Avec les avancées récentes en microélectronique, en traitement numérique et en technologie de communication, les noeuds de réseau de capteurs sans fil (noeud RCSF) deviennent de moins en moins encombrants et coûteux. De ce fait la technologie de RCSF est utilisée dans de larges domaines d’application. Comme les noeuds RCSF sont limités en taille et en coût, ils sont en général équipés d’un petit microcontrôleur de faible puissance de calcul et de mémoire etc. De plus ils sont alimentés par une batterie donc son énergie disponible est limitée. A cause de ces contraintes, la plateforme logiciell

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48

Votava, Martin. "Lokalizační protokol pro WSN s podporou mobility uzlů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218265.

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Work is focused on wireless sensor networks.The main theme is the mobility and localization in these networks. This work describes different methods and capabilities of mobile and localization schemes. This work describes a new localization protocol for wireless sensor networks. Finally, there is included a new protocol in the simulation at Network Simulator 2 and evaluate the results obtained.

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Sanchis, Cano Ángel. "Economic analysis of wireless sensor-based services in the framework of the Internet of Things. A game-theoretical approach." Doctoral thesis, Universitat Politècnica de València, 2018. http://hdl.handle.net/10251/102642.

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El mundo de las telecomunicaciones está cambiando de un escenario donde únicamente las personas estaban conectadas a un modelo donde prácticamente todos los dispositivos y sensores se encuentran conectados, también conocido como Internet de las cosas (IoT), donde miles de millones de dispositivos se conectarán a Internet a través de conexiones móviles y redes fijas. En este contexto, hay muchos retos que superar, desde el desarrollo de nuevos estándares de comunicación al estudio de la viabilidad económica de los posibles escenarios futuros. En esta tesis nos hemos centrado en el estudio de la

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Aguilar, Velez Rafael. "Dynamic structural identification using Wireless Sensor Networks." Doctoral thesis, 2010. http://hdl.handle.net/1822/11056.

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Tese de doutoramento em Engenharia Civil<br>Structural dynamic monitoring is currently used in several areas of engineering such as the mechanical, aeronautical, and civil communities. While in the most of these areas, dynamic monitoring tests started to be used in the 1970s, in the civil engineering field these tools have been used mostly since the 1980s for studying high flexible structures such as bridges and tall buildings. The use of these tools for monitoring cultural heritage buildings started to be studied at the University of Minho only in the last decade due to the interest in

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