Browsing Department of Electrical and Computer Engineering Graduate Theses by Title
Now showing items 100-119 of 378
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Digitally Assisted Radio-Frequency Integrated Circuits
(2013-08-01)In this thesis, three radio frequency integrated circuits (RFICs) were digitally assisted for varying signal power, frequency or both. Performance paramters were 'optimized' in the sense of obtaining the best performance ... -
Digitally Controlled Energy Harvesting Power Management System
(2012-03-20)This thesis discusses a power electronics module (PEM) that is used to extract power from a human energy harvesting generator according to the user’s desired input power, and stores all of the extracted energy into an ... -
A Dimmable High Power Factor Electronic Ballast for Compact Fluorescent Lamps
(2012-07-18)Incandescent lamps are now being gradually replaced by Compact Fluorescent Lamps (CFLs) as CFLs consume less power to produce the same light output and its lifetime is much longer than that of an incandescent lamp. However, ... -
Direction of Arrival Estimation in Passive Sonar
(2012-06-27)Since World War I, the area of acoustic undersea warfare has witnessed several research activities targeting the development of advanced systems to accurately detect and localize underwater moving targets. One of the main ... -
Directional Cell Breathing - A Framework for Congestion Control and Load Balancing in Broadband Wireless Networks
(2009-04-27)Despite the tremendous bandwidth increase in 3rd generation (3G) Broadband Wireless Networks (BWNs) such as Universal Mobile Telecommunication System (UMTS), maintaining the mobile users’ Quality of Service (QoS) ... -
Distributed Beamforming in Wireless Relay Networks
(2008-09-18)In this thesis, we consider a wireless network consisting of d source-destination pairs and R relaying nodes. Each source wishes to communicate to its corresponding destination. By exploiting the spatial multiplexing ... -
Distributed Contention-Free Access for Multi-hop IEEE 802.15.4 Wireless Sensor Networks
(2007-10-26)The IEEE 802.15.4 standard is a low-power, low-rate MAC/PHY standard that meets most of the stringent requirements of single-hop wireless sensor networks. Sensor networks with nodal populations comprised of thousands of ... -
Distributed Data Storage System for Data Survivability in Wireless Sensor Networks
(2013-10-03)Wireless Sensor Networks (WSNs) that use tiny wireless devices capable of communicating, processing, and sensing promise to have applications in virtually all fields. Smart homes and smart cities are just few of the examples ... -
Distributed Space-Time Block Codes in Wireless Cooperative Networks
(2009-07-02)In cooperative networks, relays cooperate and form a distributed multi-antenna system to provide spatial diversity. In order to achieve high bandwidth efficiency, distributed space-time block codes (DSTBCs) are proposed ... -
Driver Behavior Modelling and Risk Profiling Using Large-Scale Naturalistic Driving Data
Driver risk profiling is an emerging scheme in the field of Intelligent Transportation Systems (ITS). Conventionally, a risk score of a driver is calculated on a per-trip basis according to the number of harsh braking, ... -
Dynamic Channel Selection in Cognitive Radio WiFi Networks
(2014-08-25)Increased wireless network intelligence and interference awareness enabled by cognitive radio can lead to improved spectrum utilization and network performance. This thesis proposes a novel Dynamic Channel Selection (DCS) ... -
Dynamic Spectrum Allocation for Cognitive Radio Networks: A Comprehensive Optimization Approach
(2015-10-16)In Cognitive Radio Networks (CRNs), the role of the Medium Access Control (MAC) layer is very important since it enables Secondary Users (SUs) to access the spectrum without affecting Primary Users' (PUs) communications. ... -
Efficient Control of the Series Resonant Converter for High Frequency Operation
(2012-09-10)Improved transient performance and converter miniaturization are the major driving factors behind high frequency operation of switching power supplies. However, high speed operation is limited by topology, control, ... -
An Efficient Demand-Side Load Shedding Algorithm in Smart Grid
(2013-09-27)Rapid advances in the smart grid technology are making it possible to tackle a lot of problems in the aged power systems. High-speed data acquisition system, high-voltage power electronic equipment, advanced utility and ... -
Efficient Network Coding for Different Network Topologies
(2014-11-04)Network coding is known to be able to improve a network's throughput and resilience to packet losses. However, in practice high decoding complexity has been a major obstacle that prevents network coding from being widely ... -
Efficient Structured Light Pattern Using Inverse Rectification
This thesis presents inverse rectification, a novel method for establishing correspondence in depth estimation. The rectifying homography of the projector-camera pair is used to warp a pattern of vertical dash features. ... -
Efficient Switched-Capacitor Converters
Switched-capacitor (SC) power converters are a class of converters comprised entirely of capacitors and switches. These converters contain no bulky magnetic components and are well suited for miniaturization and silicon ... -
Electrical and Thermal Design of High Efficiency and High Power Density Power Converters
This thesis investigates high power density power converters from two approaches: electrical circuit and module design, and thermal management and mitigation. Three specific topics are studied in this thesis: Point-of-Load ... -
Electromagnetic instrument tracking in computer-assisted interventions
(2014-08-15)Accurate localization of medical instruments with respect to patient anatomy is an integral part of computer-assisted interventions. Electromagnetic tracking is the primary choice, particularly for minimally invasive ... -
Electromagnetic Interference Mitigation in Switched Mode Power Converters Using Digital Sampling Techniques
(2011-11-08)Increasing power density of switch mode power supplies, by increasing their switching frequency has becoming a challenging obstacle for EMI mitigation. The passive EMI suppression technique has always been the primary ...