Browsing Electrical & Computer Engineering Masters Theses by Issue Date
Now showing items 21-40 of 84
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Designing of a Small Wearable Conformal Phased Array Antenna for Wireless Communications
(North Dakota State University, 2012)In this thesis, a unique design of a self-adapting conformal phased-array antenna system for wireless communications is presented. The antenna system is comprised of one microstrip antenna array and a sensor circuit. A 1x4 ... -
A PMSG-Based Wind Energy Conversion System Assisted by Photovoltaic Power
(North Dakota State University, 2012)This work discusses a hybrid power conversion scheme consisting of a permanent magnet synchronous generator (PMSG)-based wind energy system and photovoltaic panels. The two energy sources are integrated with a battery to ... -
An Electrically Small, Wireless Sensor Platform Designed for Arbitrary Orientation
(North Dakota State University, 2013)Wireless sensors are currently used for data collection where it is either too dangerous and/or menial for a human to collect the data or impractical to use wired devices. Current wireless sensors are either too expensive ... -
An Analysis and Improvement of Brushless DC Motor Control System
(North Dakota State University, 2013)Trapezoidal Back-EMF (Brushless DC) motors are gaining increasing importance in automotive industries, HVAC applications, home appliances etc. Traditionally, Brushless DC motors are commutated electronically using position ... -
On Authentication of Long Messages in Short Time for Resource Constrained Sensor Networks
(North Dakota State University, 2013)This thesis is a collection of three different research contributions targeted towards providing faster message authentication for long messages which have been recently accepted or submitted for publication. The first ... -
The Analysis of Noise Voltage Coupling Between Right-Handed and Meta-Materials Transmission Lines on Printed Circuit Boards
(North Dakota State University, 2013)An important consideration of RF circuitry in terms of Electromagnetic Compatibility is the correct modeling of the coupling between printed transmission lines. This is very important because the coupled noise voltages ... -
Provable Data Possession Using Sigma Protocols
(North Dakota State University, 2013)A Provable Data Possession (PDP) scheme allows a client which has stored data at an untrusted server to verify that the server possesses the original data that it stored without retrieving the entire file. In this thesis ... -
A Corrective Strategy for Voltage Regulation in Distribution Grids with Plug-in Hybrid Electric Vehicles
(North Dakota State University, 2013)The increasing integration of Plug-in Hybrid Electric Vehicles (PHEV) poses unique challenges for voltage and frequency regulation in electric distribution grids. The mobility and variability due to PHEV loads exacerbates ... -
Heuristics for Dual Coverage in Wireless Sensor Networks
(North Dakota State University, 2013)Nowadays there is an increasing interest in wireless sensor networks due to their usage in a diverse range of applications such as telemetry and smart grids. In such networks, a valid concern is the minimization of the ... -
On the Secrecy Capacity of Fading Gaussian Wire-Tap Channel
(North Dakota State University, 2014)We consider the so called “wire-tap channel”, where a transmitter sends secret information to its receiver in the presence of an eavesdropping receiver with similar signal processing capability as the desired receiver. It ... -
Interior Permanent Magnet Synchronous Motor Demagnetization Fault Modeling and Analysis by Using Dynamic Phasors Model
(North Dakota State University, 2014)Interior permanent magnet synchronous motor (IPMSM) has been widely used in hybrid electric vehicles (HEVs) since the high power density and efficiency. However, the primary drawback of IPMSM is the demagnetization phenomenon ... -
Low-Cost Passive UHF RFID Tags on Paper Substrates
(North Dakota State University, 2014)To reduce the significant cost in the widespread deployment of UHF radio frequency identification (RFID) systems, an UHF RFID tag design is presented on paper substrates. The design is based on meander-line miniaturization ... -
A New Method of Dynamic Reliability Management for Chip Multi-Processors
(North Dakota State University, 2014)This work presents a new dynamic reliability management controller which successfully extends the expected lifetime of Chip Multi-Processors (CMPs). This is achieved by migrating tasks within the CMP, effectively reducing ... -
Secure Data Sharing in Cloud
(North Dakota State University, 2014)Cloud storage is widely used for sharing data due to low cost maintenance. But, it is also necessary to secure data on cloud. Secure Data Sharing in Cloud focuses mainly on: a) privacy and confidentiality, b) key management ... -
Volumetric Degenerative Routing for 3D Network-On-Chip
(North Dakota State University, 2014)As we reach the limits of scaling down of circuits, Three Dimensional Integrated Circuits (3D ICs) offer a very promising opportunity to keep on increasing the processing capacities and speed. In a Multi-Processor ... -
Content Dissemination Schemes for Mobile Clouds: Modeling, Analysis, and Verification
(North Dakota State University, 2014)In this work, we capitalize on our previous work on the Hybrid Scheme for Message Replication (HSM) for opportunistic networks, to develop two content dissemination schemes for mobile clouds, namely, the Forecast and Relay ... -
Implementation of Fourier Repetitive Control in Labview
(North Dakota State University, 2014)This thesis presents position control as well as current (torque) control of a DC servo motor with a periodic input. Position control is achieved by using Fourier repetitive control scheme. Simulation on position control ... -
FPGA-Based Simulation and Implementation of Induction Motor Torque Control Systems Based on Direct Torque Control (DTC)
(North Dakota State University, 2014)Electric drives for induction machines are of great importance because of the popularity of this machine type. To design, simulate and implement such drives, fast, reliable digital signal processors are needed. Recently ... -
CMOS Phase Shifter for Conformal Phased Array Beamformer Applications
(North Dakota State University, 2015)A vector modulator based phase shifter is developed using 0.18um CMOS process at S-band frequency to be integrated into a conformal phased array antenna to recover the desired radiation pattern in the entire 360° range. ... -
Individualized Cardiac Resynchronization Therapy: Next Generation Pacemaker Controls
(North Dakota State University, 2015)Cardiac dyssynchrony (CD) causes some heart muscle regions to contract at different times, and current treatments do not help 30 – 50% of patients. In this thesis, multi-site pacing control schemes are created to quantitatively ...