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 60 for “"wireless sensor network (WSN)"”.
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Performance evaluation for different data encryption algorithms on wireless sensor network (WSN)
The Image Security primitives in the wireless sensor networks (WSN) are very energy intensive. Another problem in terms of energy consumption is added to the security of encrypted images transmitted by WSN sensor nodes. Therefore, the aim of the project is to analyse and evaluate various different …
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Low power CMOS IC, biosensor and wireless power transfer techniques for wireless sensor network application
The emerging field of wireless sensor network (WSN) is receiving great attention due to the interest in healthcare. Traditional battery-powered devices suffer from large size, weight and secondary replacement surgery after the battery life-time which is often not desired, especially for an …
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Batteryless RF transceiver for wireless sensor networks
Wireless sensor network (WSN) is a fast growing research area which has attracted considerable attentions both in industrial and academic environments in the last few years. In this work a complete RF transceiver for WSN applications is presented, which includes a RF energy harvesting system, a …
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Wireless Sensor Networks Lifetime Extension and a New Approach to Coverage Analysis
Wireless Sensor Network (WSN) is a self-organizing, infrastructure-less network of miniature sensors. In this study, we introduce the concept of coverage confidence level and present a detailed analysis on Sensing Spatial Coverage (SSC) of WSN. This analysis aims to determine the required resources …
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Design And Evaluation of Flexibility-Based Structural Damage Localization Using Wireless Sensor Networks
… are different ways to monitor their health, wireless sensor network: WSN) has the advantage of easy deployment and low cost, which make it feasible for most structures. We designed and implemented a system to localize damages on structures with a WSN by detecting the change in structure …
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Implementing Sink Mobility and Recharging Policies Using an Unmanned Aerial Vehicle
<p>Wireless sensor networks (WSNs) have been a topic of research for decades. Researchers have been exploring different uses for UAVs with their growing popularity. In this thesis I develop a wireless sensor network (WSN) and introduce the theoretical effects of an unmanned aerial vehicle (UAV) for …
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Heterogeneity-aware and energy-aware scheduling and routing in wireless sensor networks
A Wireless Sensor Network (WSN) is a group of specialized transducers, called sensor nodes, with a communication infrastructure intended to monitor and record conditions at diverse locations. Since WSN applications are usually deployed in an open environment, the network is exposed to rough weather …
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Concurrent Transmission with Adaptive Forwarder Set
… concurrent transmission(CX) is relatively new in wireless sensor network (WSN), and protocols based on CX can implement reliable and conceptually simple flooding mechanism. These protocols work well; however, they are intrinsically energy inefficient for non-flooding traffic models, because in …
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General Direction Routing Protocol
… General Direction Routing Protocol (GDRP) is a Wireless Sensor Network (WSN) multi-path routing protocol which abstracts localization information (commonly GPS coordinates) into relative direction information in order to perform routing decisions. By generating relative direction information …
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Generic benchmarking for application specific wireless sensor networks multi criteria performance
… like TCP/IP or Internet is not feasible with sensors used across various applications. Instead, application specific design methodology is the de facto consensus accepted among Wireless Sensor Network (WSN) community. While it wins WSN performance gains for individual applications, the …
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A Radio Frequency Identification Wireless Sensor Network Based Grain Inventory Management System For Zambia's Food Reserve Agency
… work proposed the design and development of a Wireless Sensor Network (WSN) based Radio Frequency Identification Grain Inventory Management System (RFID GIMS) for the Food Reserve Agency (FRA.) RFID is an automated system that utilizes wireless technology to uniquely identify and track tagged …
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A Radio Frequency Identification Wireless Sensor Network Based Grain Inventory Management System For Zambia's Food Reserve Agency
… work proposed the design and development of a Wireless Sensor Network (WSN) based Radio Frequency Identification Grain Inventory Management System (RFID GIMS) for the Food Reserve Agency (FRA.) RFID is an automated system that utilizes wireless technology to uniquely identify and track tagged …
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Network Problem Diagnosis and Status Assessment for Wireless Sensor Network in Civil Infrastructure Monitoring
… is to develop a methodology for diagnosing network problems and assessing network status in scenarios where wireless sensor network (WSN) systems experience issues and faults based on the understanding of the operating mechanisms of WSNs in civil infrastructure monitoring. The proposed …
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Internet of Things (IoT) application for hydrological measurements: measuring the Urban Heat Island effect
… as the removal of shaded green spaces. An IoT Wireless Sensor Network (WSN) comprising 14 sensor nodes were implemented using readily available, ‘off-the-shelf' products in South Africa, resulting in a competitive build cost of R1523.14 per node. The sensor nodes were deployed at the University …
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AN INVESTIGATION OF SHORT RANGE ELECTROMAGNETIC WAVE COMMUNICATION FOR UNDERWATER ENVIRONMENTAL MONITORING UTILISING A SENSOR NETWORK PLATFORM
… these have underperformed in many applications. Wireless Sensor Network (WSN) using radio communication underwater is state of the art. The frequency of operation and the antenna are the big challenges that if unlocked, will present many advantages. The aim of this research is to investigate …
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Design and implement WSN/IOT smart parking management system using microcontroller
… parking management mechanisms. Widespread use of wireless technologies paired with the recent advances in wireless applications for parking, manifests that digital data dissemination could be the key to solve emerging parking problems. Wireless Sensor Network (WSN) technology has attracted …
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Adaptive clustering and transmission range adjustment for topology control in wireless sensor networks
A wireless sensor network (WSN) is characterized by a limited energy supply and a large number of nodes. Topology control (TC) as one of the main ways to control energy consumption in WSNs has been the focus of a considerable body of research. Topology control algorithms can be divided into …
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Low cost monitoring system to diagnose problematic rail bed : case study of Mud Pumping Site
This thesis describes the development of low cost sensors and wireless sensor network (WSN) platform aimed at characterizing problematic rail beds (subgrade). The instrumentations are installed at a busy high-speed Northeast Corridor (NEC) railway site that is experiencing recurring mud pumping …
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Asset integrity case development for normally unattended offshore installations
… electrical power generation system. Bayesian Networks provided the base theory and algorithms to develop the models. The first model focuses on the consequences of one component failure. While the second model focuses on the consequences of a fuel gas release with escalated fire and explosion, …
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Joint position estimation, packet routing and sleep scheduling in wireless sensor networks
Wireless Sensor Network (WSN) is an important research field in Computer Science with applications that span multiple domains. Due to the limitation of sensor nodes, network lifetime is a critical issue that needs to be addressed. Therefore, in this thesis I propose the Energy-aware Connected …
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