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 3929 for “"wireless"”.
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Routing Optimization in Wireless Ad Hoc and Wireless Sensor Networks
Wireless ad hoc networks are expected to play an important role in civilian and military settings where wireless access to wired backbone is either ineffective or impossible. Wireless sensor networks are effective in remote data acquisition. Congestion control and power consumption in wireless ad …
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Wireless communication system for data transfer and wireless power transmission
Powering wireless communication devices remotely is necessary when a user of the communication device has limited access to battery power or the resources necessary to constantly replace the batteries. This research is focused on remotely charging a communication device by using the power of the …
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Energy efficient and secure wireless communications for wireless sensor networks
This dissertation considers wireless sensor networks (WSNs) operating in severe environments where energy efficiency and security are important factors. This main aim of this research is to improve routing protocols in WSNs to ensure efficient energy usage and protect against attacks (especially …
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Terahertz wireless communication
… of this thesis is to explore Terahertz (THz) wireless communication technology. More specifically the objective is to develop and characterize several THz communication systems and study the effect of atmosphere propagation through fog droplets and dust particles on THz communications. For …
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Optical wireless communications
The phenomenal global demand for wireless communication links with greater bandwidths is motivating engineers world over to come up with alternatives communication links. One of such system that has received a great deal of attention and has shown evidence of a promising future is infrared optical …
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Wireless relative localization
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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Mobile Wireless System Interworking with 3G and Packet Aggregation for Wireless LAN
… the efficient transmission of data within a wireless local area network (WLAN) system. A simulation model was developed to study the performance of our protocol, AGG-MAC (aggregated medium access control). AGG-MAC is a simple and elegant medium access control (MAC) protocol designed to …
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Towards a Wireless Aircraft
… of of an aircraft’s wired interconnects with wireless data connections would offer a number of benefits. These include: weight reduction, easier maintenance, faster aircraft design, simpler retrofitting and greater redundancy. However, attempting to do this produces a lot of challenges and …
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Wireless energy monitoring system
… energy usage. For this thesis, an open source Wireless Energy Monitoring System was implemented, primarily based on the OpenEnergyMonitor project. The goal of this thesis is to provide a very simple, scalable, and reliable monitoring system that is capable of reading current and voltage from …
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Wireless Intrusion Detection Sytem
The decrease in price and the ease of use of wireless network devices make them an attractive alternative to standard wired networks. However, the intrinsic insecurity of wireless media and weaknesses in the standards for use of wireless media leave wireless networks vulnerable to attacks from …
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Wireless tools for neuromodulation
… neuromodulation in rodents are tethered. The few wireless devices use batteries or are inductively powered. The tether restricts movement, limits behavioral tests, and increases the risk of infection. Batteries are large and heavy with a limited lifetime. Inductive powering suffers from rapid …
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Clustered wireless sensor networks
The study of topology in randomly deployed wireless sensor networks (WSNs) is important in addressing the fundamental issue of stochastic coverage resulting from randomness in the deployment procedure and power management algorithms. This dissertation defines and studies clustered WSNs, WSNs whose …
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Hybrid wireless broadband networks
… particularly in this thesis referring to wireless broadband networks. However, to provide end-to-end quality of service (QoS) in a hybrid system is a challenging task due to different protocol in each system. In this thesis, we aim to improve the overall performance of hybrid networks in a …
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Wireless Communication in Vehicles
… is an increasing interest in the deployment of wireless communication systems in vehicles. The motivation for this work is to provide a fundamental characterisation of the in-vehicle Electromagnetic (EM) wave propagation environment, and to demonstrate how this can be used to aid the deployment …
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Structural Wireless Delamination Sensor
… sensor proposed in this thesis (termed as Wireless Interlaminar Nano Sensor, or WINS) is an LC resonant circuit (resonant frequency fₛ = 1 MHz), and unlike prior sensors, is comprised solely of structural materials: a structural epoxy and carbon nanotubes (CNTs). The delamination crack …
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Network coded wireless architecture
Wireless mesh networks promise cheap Internet access, easy deployment, and extended range. In their current form, however, these networks suffer from both limited throughput and low reliability; hence they cannot meet the demands of applications such as file sharing, high definition video, and …
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Positioning of wireless broadband
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1996.
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