Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 199 for “"Wireless sensor network."”.
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Wireless sensor network for health monitoring
Wireless Sensor Network (WSN) is becoming a significant enabling technology for a wide variety of applications. Recent advances in WSN have facilitated the realization of pervasive health monitoring for both homecare and hospital environments. Current technological advances in sensors, …
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Antennas for wireless sensor network applications
… an analysis of antennas, which are applicable to wireless sensor networks and, in particular, to the requirements of the Speckled Computing Network Consortium. This was done through a review of the scientific literature on the subject, and the design, computer simulation, and experimental …
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A self-configuring wireless sensor network
… and implementation of self-configuring wireless sensor network. The investigation covers early network systems to modern wireless networks. Several wireless networks were compared, with Bluetooth being selected as the implemented network technology and the Zigbee 802.15.4 network being …
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Wireless sensor network for smart street lighting
… by detecting traffic and controlling lights with wireless radio frequency modules. The system is designed to be compatible with preexisting lighting infrastructure and is easy to install and maintain. Top down design approach is used in the creation of the system, the overall architecture is …
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A middleware framework for wireless sensor network
Advances in wireless and Micro-Electro-Mechanical Systems (MEMS) technology has given birth to a new technology field sensor networks. These new technologies along with pervasive computing have made the dream of a smart environment come true. Sensors being small and capable of sensing, processing …
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A wireless sensor network for vibration measurement
Wireless sensor networks (sensornets) enable distributed sensing, opening up sensing possibilities not previously available. One application of sensornets is online, non-intrusive power transformer monitoring.
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Wireless sensor network for ground-water monitoring
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2002.
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Energy-efficient Wireless Sensor Network MAC Protocol
With the progression of computer networks extending boundaries and joining distant locations, wireless sensor networks (WSNs) emerge as the new frontier in developing opportunities to collect and process data from remote locations. WSNs rely on hardware simplicity to make sensor field deployments …
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Radio frequency ranging for wireless sensor network localization
Wireless sensor networks (WSNs) have a diverse range of industrial, scientific and medical applications where the sensor nodes are of low cost, standard with respect to hardware architecture, processing abilities and communicate using low-power narrow-band radios. Position information of the …
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Energy scavenging system for indoor wireless sensor network
As wireless communication evolves wireless sensors have begun to be integrated into society more and more. As these sensors are used to a greater extent newer and better ways to keep them working optimally have begun to surface. One such method aims to further the sensors energy independence on …
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Repairing wireless sensor network connectivity in damaged environments
A wireless sensor network can become partitioned due to node failure, requiring the deployment of additional relay nodes in order to restore network connectivity. This introduces an optimisation problem involving a tradeoff between the number of additional nodes that are required and the costs of …
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Distributed optimization on a wireless sensor network testbed
… optimization algorithms on a physical wireless sensor network. Distributed optimization refers to optimization of some global function which is not completely known to any single node in a communication network. The global function is some combination of local functions that are …
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Wireless sensor network implementations on a testbed platform
Wireless sensor network implementations are developed for three different problems: data efficient quickest change detection, energy efficient sleep control for application to the tracking problem, and diffusing point source localization and tracking. For each of these three problems work in the …
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Wireless sensor network aided search and rescue in trails
In recent years, wireless sensor networks have been used in applications of data gathering and target localization across large geographical areas. In this thesis, we study the issues involved in applying wireless sensor networks to search and rescue of lost hikers in trails and focus on the …
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A CMOS Frequency Synthesizer for Wireless Sensor Network transceivers
Negli ultimi anni il mercato dei sistemi wireless è cresciuto immensamente. I sistemi di comunicazione wireless sono penetrati in tutti gli aspetti della nostra vita, dal lavoro al tempo libero, e sono diventati per noi indispensabili. Lo sviluppo di dispositivi a bassissimo consumo di potenza …
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Fixed chain-based wireless sensor network for intelligent transportation systems
Wireless Sensor Networks (WSNs) are distributed and interconnected wirelessly sensors that are used in a variety of fields of our daily life, such as the manufacturing, utility operations and traffic monitoring. Many WSN applications come with some technical weaknesses and issues, especially when …
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Intruder localization wireless sensor network radar design with virtual reference tags
This research designs a WSN (Wireless Sensor Network) algorithm for human intruder localization and path detection. There are two commonly used position estimation techniques in WSN, ToA (Time of Arrival) and RSSI (Received Signal Strength Indicator). In ToA the difference between arrivals of …
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Evaluating and improving collection tree protocol in mobile wireless sensor network
… is the fundamental characteristic of the sensor nodes. Mobility poses many challenges to the routing protocols used in such applications. In this thesis we evaluate the performance of Collection Tree Protocol as applied in mobile WSN scenarios. The simulation study shows CTP performs …
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An Energy Efficient Addressing Scheme For a Static Wireless Sensor Network
… thesis, we propose architecture for a static wireless sensor network where sensors are arranged into a zones with the nodes at each zone interconnected with nodes in sub zones. We also provide an energy efficient routing algorithm in the network. In our proposed architecture, every sensor …
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