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Electrical Engineering Theses and Dissertations

Theses/dissertations from 2023 2023.

On the Performance Enhancement of Beamspace MIMO and Non-orthogonal Multiple Access for Future Cellular Networks , Sinasi Cetinkaya

Enhancing Smart Grid Security and Reliability through Graph Signal Processing and Energy Data Analytics , Md Abul Hasnat

Fabric-Based Organic Electrochemical Transistor Towards Wearable pH Sensing Electronics , Nestor Osvaldo Marquez Rios

Novel Systems Engineering Framework Analysis of Photovoltaic Models and Equations , Peter R. Michael

Deep Learning Enhancement and Privacy-Preserving Deep Learning: A Data-Centric Approach , Hung S. Nguyen

Cyber-Physical Multi-Robot Systems in a Smart Factory: A Networked AI Agents Approach , Zixiang Nie

Multiple Access Techniques Enabling Diverse Wireless Services , Mehmet Mert Şahin

Deep Reinforcement Learning Based Optimization Techniques for Energy and Socioeconomic Systems , Salman Sadiq Shuvo

Process Automation and Robotics Engineering for Industrial Processing Systems , Drake Stimpson

Theses/Dissertations from 2022 2022

Stability and Interaction Analysis of Inverter-Based Resources in Power Grids , Li Bao

Healthcare IoT System and Network Design , Halil Ibrahim Deniz

Video Anomaly Detection: Practical Challenges for Learning Algorithms , Keval Doshi

Data-Driven State Estimation for Improved Wide Area Situational Awareness in Smart Grids , Md Jakir Hossain

Deep Learning and Feature Engineering for Human Activity Recognition: Exploiting Novel Rich Learning Representations and Sub-transfer Learning to Boost Practical Performance , Ria Kanjilal

Assistive Technologies for Independent Navigation for People with Blindness , Howard Kaplan

Diagnosis of Neurodegenerative Diseases Using Higher Order Statistical Analysis of Electroencephalography Signals , Seyed Alireza Khoshnevis

Accelerating Multiparametric MRI for Adaptive Radiotherapy , Shraddha Pandey

A Model-Based Fault Diagnosis in Dynamic Systems via Asynchronous Motors System Identification or Testing, and Control Engineering Observers , Kenelt Pierre

Improving Wireless Networking from the Learning and Security Perspectives , Zhe Qu

Improving Robustness of Deep Learning Models and Privacy-Preserving Image Denoising , Hadi Zanddizari

Theses/Dissertations from 2021 2021

A Method for Compact Representation of Heterogenous and Multivariate Time Series for Robust Classification and Visualization , Alla Abdella

Dynamical System and Parameter Identification for Power Systems , Abdullah Abdulrahman Alassaf

Phasor Domain Modeling of Type-III Wind Turbines , Mohammed Alqahtani

An Automated Framework for Connected Speech Evaluation of Neurodegenerative Disease: A Case Study in Parkinson's Disease , Sai Bharadwaj Appakaya

Investigation of CoO ATO for Solar Cells and Infrared Sheaths , Manopriya Devisetty Subramanyam

Thermal Management of Lithium-ion Batteries Using Supercapacitors , Sanskruta Dhotre

Effect of Se Composition in CdSe 1-X T eX /CdTe Solar Cells , Sheikh Tawsif Elahi

Microencapsulation of Thermochromic Materials for Thermal Storage and Energy Efficiency of Buildings , Abdullatif Hakami

Piezoelectrically-Transduced ZnO-on-Diamond Resonators with Enhanced Signal-to-Noise Ratio and Power-handling Capability for Sensing and Wireless Communication Applications , Xu Han

Preparation and Characterization of Single Layer Conducting Polymer Electrochromic and Touchchromic Devices , Sharan Kumar Indrakar

Security Attacks and Defenses in Cyber Systems: From an AI Perspective , Zhengping Luo

Power System Optimization Methods: Convex Relaxation and Benders Decomposition , Minyue Ma

Metal Oxide Sensor Array Test Bed Prototype for Diagnostic Breath Analysis , Tiffany C. Miller

Packaging of Active RF Beamforming IC Utilizing Additive Manufacturing , Ryan Murphy

Adaptive Network Slicing in Fog RAN for IoT with Heterogeneous Latency and Computing Requirements: A Deep Reinforcement Learning Approach , Almuthanna Nassar

Development of a Bipolar Radiofrequency Ablation Device for Renal Denervation , Noel Perez

Copper Electrodeposition Assisted by Hydrogen Evolution for Wearable Electronics: Interconnections and Fiber Metallization , Sabrina M. Rosa Ortiz

Theory and Application of Dielectric Rod Antennas and Arrays , Gabriel Saffold

Advanced Organic Polymers for the Nanoscale Fabrication of Fiber-based Electronics Using the Electrospinning Technique , William Serrano Garcia

Transparent Planar Micro-Electrode Array for In-Vitro Electric Field Mediated Gene Delivery , Raj Himatlal Shah

High Speed Switching for Plasma Based Electroporation , Shivangi Sharma

Development of Small-Scale Power Supplies for Wearable Medical Diagnostic Devices , Donny Stiner

Novel Approach to Integrate CAN Based Vehicle Sensors with GPS Using Adaptive Filters to Improve Localization Precision in Connected Vehicles from a Systems Engineering Perspective , Abhijit Vasili

Modeling, Control and Analysis of Inverter-Based Generators in the Power Grids , Yangkun Xu

Fiber-Based Supercapacitor for Wearable Electronics , Rohit Lallansingh Yadav

Modeling, Identification, and Stability Analysis of Inverter-Based Resources Integrated Systems , Miao Zhang

Data-Oriented Approaches towards Mobile, Network and Secure Systems , Shangqing Zhao

Strategies in Botnet Detection and Privacy Preserving Machine Learning , Di Zhuang

Theses/Dissertations from 2020 2020

Architecture design and optimization of Edge-enabled Smart Grids , Adetola B. Adeniran

Multimodal Data Fusion and Attack Detection in Recommender Systems , Mehmet Aktukmak

Artificial Intelligence Towards the Wireless Channel Modeling Communications in 5G , Saud Mobark Aldossari

Enhancement of 5G Network Performance Using Non-Orthogonal Multiple Access (NOMA) , Faeik Tayseer Al Rabee

Investigation of Machine Learning Algorithms for Intrusion Detection System in Cybersecurity , Mohmmed Alrowaily

Comprehensive Optimization Models for Voltage Regulation in PV-rich Multi-phase Distribution Systems , Ibrahim Alsaleh

Design and Implementation of Solid/Solid Phononic Crystal Structures in Lateral Extensional Thin-film Piezoelectric on Silicon Micromechanical Resonators , Abdulrahman Alsolami

Analysis of Computational Modeling Methods as Applied to Single-Crystal Organohalide Perovskites , Jon M. Bebeau

Development of a Monolithic Implantable Neural Interface from Cubic Silicon Carbide and Evaluation of Its MRI Compatibility , Mohammad Beygi

Performance Enhancement Techniques for Next-Generation Multi-Service Communication and Medical Cyber-Physical Systems , Ali Fatih Demir

Microfluidically Reconfigurable Millimeter-Wave Switches, Antenna Arrays and Filters with Fast-Actuation Using Movable Metallized Plates and Integrated Actuation , Enrique J. Gonzalez Carvajal

Multilayered Transmission Lines, Antennas and Phased Arrays with Structurally Integrated Control Electronics Using Additive Manufacturing , Merve Kacar

Cost Efficient Algorithms and Methods for Spectral Efficiency in Future Radio Access , Murat Karabacak

Design of DeLRo Autonomous Delivery Robot and AI Based Localization , Tolga Karakurt

Theory, Fabrication, and Characterization of Perovskite Phototransistor , Fatemeh Khorramshahi

Modeling and Control of Renewable Energy in Grids and Microgrids , Yin Li

Next-Generation Self-Organizing Communications Networks: Synergistic Application of Machine Learning and User-Centric Technologies , Chetana V. Murudkar

Reliability Analysis of Power Grids and its Interdependent Infrastructures: An Interaction Graph-based Approach , Upama Nakarmi

Algorithms Enabling Communications in the Presence of Adjacent Channel Interference , Berker Peköz

Electrospun Nanofibrous Membrane Based Glucose Sensor with Integration of Potentiostat Circuit , Kavyashree Puttananjegowda

Service Provisioning and Security Design in Software Defined Networks , Mohamed Rahouti

Reading and Programming Spintronic Devices for Biomimetic Applications and Fault-tolerant Memory Design , Kawsher Ahmed Roxy

Implementation of SR Flip-Flop Based PUF on FPGA for Hardware Security , Sai Praneeth Sagi

Trauma Detection Personal Locator Beacon System , Sakshi Sharma

Network Function Virtualization In Fog Networks , Nazli Siasi

Socially Aware Network User Mobility Analysis and Novel Approaches on Aerial Mobile Wireless Network Deployment , Ismail Uluturk

Spatial Stereo Sound Source Localization Optimization and CNN Based Source Feature Recognition , Cong Xu

Hybrid RF Acoustic Resonators and Arrays with Integrated Capacitive and Piezoelectric Transducers , Adnan Zaman

Theses/Dissertations from 2019 2019

Fabrication and Characterization of Electrical Energy Storage and Harvesting Energy Devices Using Gel Electrolytes , Belqasem Aljafari

Phasor Measurement Unit Data-Based Steady State and Dynamic Model Estimation , Anas Almunif

Cross Layer-based Intrusion Detection System Using Machine Learning for MANETs , Amar Amouri

Power Conditioning System on a Micro-Grid System , Tamoghna Banerjee

Thermal Response in a Field Oriented Controlled Three-phase Induction Motor , Niyem Mawenbe Bawana

Design and Development of a Wireless EEG System Integrated into a Football Helmet , Akshay V. Dunakhe

Machine Learning, Game Theory Algorithms, and Medium Access Protocols for 5G and Internet-of-Thing (IoT) Networks , Mohamed Elkourdi

Improving Stability by Enhancing Critical Fault Clearing Time , Ammara M. Ghani

RF Power Circuit Designs for Wi-Fi Applications , Krishna Manasa Gollapudi

Enhancing Secrecy and Capacity of Wireless Systems Using Directive Communications , Mohammed A. Hafez

Statistical Anomaly Detection and Mitigation of Cyber Attacks for Intelligent Transportation Systems , Ammar Haydari

Absorber and Window Study – CdSexTe1-x/CdTe Thin Film Solar Cells , Chih-An Hsu

Methods and Algorithms to Enhance the Security, Increase the Throughput, and Decrease the Synchronization Delay in 5G Networks , Asim Mazin

Piezoelectric ZnO Nanowires as a Tunable Interface Material for Opto-Electronic Applications , Anand Kumar Santhanakrishna

Security Framework for the Internet of Things Leveraging Network Telescopes and Machine Learning , Farooq Israr Ahmed Shaikh

Diversity and Network Coded 5G Wireless Network Infrastructure for Ultra-Reliable Communications , Nabeel Ibrahim Sulieman

The Design of Passive Networks with Full-Wave Component Models , Eric Valentino

CubeSat Constellation Design for Intersatellite Linking , Michael T. White

Theses/Dissertations from 2018 2018

Design of Micro-Scale Energy Harvesting Systems for Low Power Applications Using Enhanced Power Management System , Majdi M. Ababneh

A Study on the Adaptability of Immune System Principles to Wireless Sensor Network and IoT Security , Vishwa Alaparthy

Validation of Results of Smart Grid Protection through Self-Healing , Felipe Framil Assumpção

A Novel Framework to Determine Physiological Signals From Blood Flow Dynamics , Prashanth Chetlur Adithya

The Effect of Processing Conditions on the Energetic Diagram of CdTe Thin Films Studied by Photoluminescence , Shamara P. Collins

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Home > USC Columbia > Engineering and Computing, College of > Electrical Engineering > Electrical Engineering Theses and Dissertations

Electrical Engineering Theses and Dissertations

Theses/dissertations from 2023 2023.

Robust Deep Learning Models For Multi-label Image Classification In Limited And Free Annotation Scenarios , Rabab Ezzeldin Rabie Abdelfattah

Analysis, Measurement, and Modeling of Millimeter Wave Channels for Aviation Applications , Zeenat Afroze

Physics-Based and Behavioral Models for Fuel Cells , Charles Chima Anyim

Simulation-based Optimization Of A Dc Microgrid: With Machine-learning-based Models And Hybrid Meta-heuristic Algorithms , Tyler Van Deese

Novel Structures and Thin Film Techniques for Reconfigurable RF Technologies With Improved Signal Integrity , Jinqun Ge

Suitability of Quantized DEVS-LIM Methods for Simulation of Power Systems , Navid Gholizadeh

Novel Approach To In-situ Mocvd Oxide/dielectric Deposition For Iii-nitride-based Heterojunction Field Effect Transistors , Samiul Hasan

Quantized State Simulation of Electrical Power Systems , Joseph Micah Hood

Circularly-shifted Chirps For Triple Functionality: Communications, Radar, And Computation , Safi Shams Muhtasimul Hoque

Optimization of Ultrawide Bandgap Semiconductor Materials for Heterostructure Field Effect Transistors (HFETs) , Mohi Uddin Jewel

Design And Fabrication Of High-resolution Epitaxial 4h-sic Metal Insulator Semiconductor Detectors , Omerfaruk Karadavut

Deep Learning Based Fault Diagnosis and Prognosis for Bearing , Guangxing Niu

High-Performance Wide Bandgap Semiconductor Power Modules Enabled by Advanced Two-Phase Mini-Channel Cooling , Bo Tian

Magnetic Softness Tuned Superparamagnetic Nanoparticles for Highly Efficient Cancer Theranostics , Jie Wang

Probabilistic Cable Aging Diagnosis And Prognosis With Reflectometry And Capacitance Methods , Xuan Wang

Robustness Of Convolutional Neural Networks: Analysis And Applications , Xin Zhang

Theses/Dissertations from 2022 2022

MIMO Antenna Systems for Wireless Handheld Devices , Ahmed H. Abdelgawwad

Applications of Laser Liftoff Technique for Wide Bandgap Power and Flexible Electronics , Md Didarul Alam

Non-intrusive Microwave Surface Wave Technique For Cable Damage and Aging Detection , Ahmed Shah Arman

Pulse Width Modulation-Based Voltage Balancing and Circulating Current Control for Modular Multilevel Converters , Md Multan Biswas

Networked Digital Predictive Control for Modular DC-DC Converters , Castulo Aaron De la O Pérez

Development of Micro-Sized Algan Deep Ultraviolet Light Emitting Diodes and Monolithic Photonic Integrated Circuits , Richard Speight Floyd III

Distributed Interdigital Capacitor (IDC) Sensing for Cable Insulation Aging and Degradation Detection , Md Nazmul Al Imran

Epitaxial 4H-SiC Radiation Detectors for Harsh Environment Applications , Joshua W. Kleppinger

Growth, Characterization and Evaluation of CdZnTeSe Single Crystals for Room Temperature Radiation Detectors , Ritwik Nag

Automated Contingency Management for Water Recycling System , Shijie Tang

Closed Form Implicitly Integrated Models for Computationally Efficient Simulation of Power Electronics , Andrew Wunderlich

Theses/Dissertations from 2021 2021

Real Time Simulation and Hardware in the Loop Methods for Power Electronics Power Distribution Systems , Michele Difronzo

Time-Domain Measurement of Magnetization Dynamics in Ferrofluids , Brian Egenriether

Increased Detectivity and Low Temperature Performance Analysis of Sub-20μm Micropixel Array A1GaN UV Photodiodes , Samia Islam

Operating Strategies and Disturbance Characterization for DC Microgrids , Miles Leonard-Albert

Real-Time Probabilistic Solvers for Digital Twins of Power Electronic Systems , Matthew Aaron Milton

Ultrawide Bandgap Algan-Channel Metal Oxide Semiconductor Heterostructure Field Effect Transistors With High- K Gate Dielectrics , Md Abu Shahab Mollah

Temperature Dependence of Electroluminescence and Current-Voltage Characteristics of Arrays of Deep Ultraviolet Algan Micropixel Led , Dhruvinkumar Prakashchandra Patel

Robust Adaptive Model Predictive Control of Nonlinear Sample-Data Systems , Lixing Yang

Theses/Dissertations from 2020 2020

Methods for Dynamic Stabilization, Performance Improvement, and Load Power Sharing In DC Power Distribution Systems , Hessamaldin Abdollahi

Data-Driven Modeling Through Power Hardware in the Loop Experiments: A PV Micro-Inverter Example , Hayder Dawood Abbood Almukhtar

Novel Multi-User Chirp Signaling Schemes for Future Aviation Communication Applications , Nozhan Hosseini

The Hybridization of a Graphene and Silicon Carbide Schottky Optoelectronic Device by the Incorporation of a Lead Sulfide Quantum Dot Film , Joshua Letton

Channel Modeling and Tropospheric Effects on Millimeter Wave Communications for Aviation Applications , Jinwen Liu

30 GHz Path Loss Modeling and Performance Evaluation for Noncoherent M-ary Frequency Shift Keying in the 30 GHz Band , Mohanad Razak Mohsen

Room Temperature Semiconductor Radiation Detectors Based on CdZnTe and CdZnTeSe , Mohsin Sajjad

Optimization of Vehicle to Grid System in a Power System With Unit Commitment , Charles Uko

Design of High Efficiency Wireless Power Thansfer System With Nonlinear Resonator , Yibing Zhang

Theses/Dissertations from 2019 2019

DC Bus Stabilization and Dynamic Performance Improvement of a Multi-Converter System , Silvia Arrua

Fabrication and Characterization of Thin Films for Heterojunction Solar Cells and Radiation Detectors , Towhid A. Chowdhury

Low Frequency Injection as a Method of Low-Level DC Microgrid Communication , Matthew Davidson

Modeling and Loss Analysis of SiC Power Semiconductor Devices for Switching Converter Applications , Soheila Eskandari

Path Loss Models for Two Small Airport Indoor Environments at 31 GHz , Alexander L. Grant

Wireless RF Induced Energy Absorption and Heating of Lanthanum-Nickel Alloy in the Near-Field , Michael Dillon Lindsay

Fractional Order and Virtual Variable Sampling Design of Repetitive Control for Power Converters , Zhichao Liu

Curbside Antenna to Vehicle Path Loss Measurements and Modeling in Three Frequency Bands , Patrick Murphy

Finite Element Electromagnetic (EM) Analyses of Induction Heating of Thermoplastic Composites , Ankit Patel

Constrained Consensus in Continuous-Time Multi-Agent Systems , Zheqing Zhou

Theses/Dissertations from 2018 2018

Study Of 4H-SiC And ALxGA1-xN Based Heterojunction Devices For Ultraviolet Detection Applications , Venkata Surya Naga Raju Chava

Photovoltaic Inverter Control to Sustain High Quality of Service , Yan Chen

Novel Wideband EBG Structures For Isolation Improvement Between Cosite Antennas , Paul John Czeresko III

High Resolution Radiation Detectors Based On 4H-SiC N-Type Epitaxial Layers And Pixilated CdZnTe Single Crystal Devices , Cihan Oner

Ku-Band AG Channel Modeling , Albert Smith

Quantifying Time Retarded Electromagnetic Fields and Their Applications in Transmission Lines , Brandon Thomas Gore

Structurally Integrated Reconfigurable Wideband Array For Conformal Applications , Michael Damon Wright

Multifunction Radio Frequency Composite Structures , David L. Zeppettella

Theses/Dissertations from 2017 2017

Dynamic Model and Control of Quadrotor in the Presence of Uncertainties , Courage Agho

Ultra High-Speed Signaling and Return on Technology Investment (ROTI) for the Electrical Interconnects Sector , Azniza Abd Aziz

High Quality Low Offcut 4h-Sic Epitaxy and Integrated Growth of Epitaxial Graphene for Hybrid Graphene/Sic Devices , Anusha Balachandran

Cable Health Monitoring System Built Into Power Converter Using Time Domain Reflectometry , Hossein Baninajar

Low Bandwidth Communication for Networked Power Hardware-In-The-Loop Simulation , Sean Borgsteede

Fault Protection In DC Microgrids Based On Autonomous Operation Of All Components , Qiu Deng

Distributed Optimization Method for Intelligent Control of DC Microgrids , Yuanyuan Fan

Three Segment Adaptive Power Electronic Compensator for Non-periodic Currents , Amin Ghaderi

Study of Mos2 and Graphene-Based Heterojunctions for Electronic and Sensing Applications , Ifat Jahangir

Evaluation Of Multicarrier Air Interfaces In The Presence Of Interference For L-Band And C-Band Air-Ground Communications , Hosseinali Jamal

Analysis and Design of a Highly Compact Ellipse-Shaped Ultra-Wideband Bandpass Filter (Uwb-Bpf) with a Notched Band , Xuetan Liu

Study of Ultra Wide Band Gap AlxGa1-xN Field Effect Transistors For Power Electronic Applications , Sakib Mohammed Muhtadi

Growth and Characterization of Anisotropic GaSe Semiconductor for Radiation Detection and THz Applications , Haseeb Nazir

Physical Characterization of Electrodeposited PCB Copper Foil Surfaces , Blessing Kolawole Ojo

Wideband Low Side Lobe Aperture Coupled Patch Phased Array Antennas , Dhruva Poduval

Software Modelling For Real World Faults On AC Transmission Protective Systems Analysis And Effects , Iandale Tualla

Improved N-Type 4h-Sic Epitaxial Layer Radiation Detectors and Noise Analysis of Front-End Readout Electronics , Khai V. Nguyen

Integrating Nano-Patterned Ferromagnetic and Ferroelectric Materials For Smart Tunable Microwave Applications , Tengxing Wang

An Application of Dempster-Shafer Fusion Theory to Lithium-ion Battery Prognostics and Health Management , John Weddington

A Lebesgue Sampling based Diagnosis and Prognosis Methodology with Application to Lithium-ion Batteries , Wuzhao Yan

Theses/Dissertations from 2016 2016

Positive Feedforward Control Design For Stabilization Of A Single-Bus DC Power Distribution System Using An Improved Impedance Identification Technique , Silvia Arrúa

Simulation Of GaN Based MIS Varactor , Bojidha Babu

High Gain Pattern Reconfigurable Antenna Arrays for Portable and Body-Centric Wireless Applications , Nowrin Hasan Chamok

An Improved Ship Design Tool for Comparing Performance of Multiple Ship Designs across User-Defined Missions , Helder Jose de Almeida Pais

Estimating Local Average Power In A Line-Of-Sight Indoor Channel: Spatial Sampling And Processing , Israt Jahan Disha

Time-Domain Measurement Of Ultrafast Magnetization Dynamics In Magnetic Nanoparticles , Brian Egenriether

Finite Control Set Model Predictive Control Of Direct Matrix Converter And Dual-Output Power Converters , Ozan Gulbudak

Distributed Optimization And Control Of Islanded Microgrids , Md Rishad Hossain

Engineering Model Of III-Nitride Power Heterostructure Field Effect Transistor On Silicon Substrate , Mohammad Mirwazul Islam

A Comparison Of FPGA Implementation Of Latency-Based Solvers For Power Electronic System Real-Time Simulation , Matthew Aaron Milton

Investigation Of Wide Bandgap Semiconductor Devices For Radiation Detection Applications , Rahmi Orhon Pak

Modeling and Loss Analysis of Wide Bandgap Power Semiconductor Devices , Kang Peng

Miniaturized RF Components With A Novel Tunable Engineered Substrate For Wireless Communication Systems , Yujia Peng

Wireless Channel Modeling For Networks On Chips , William Rayess

Comparative Analysis Of Current Control Methods For Modular Multilevel Converters , Jordan D. Rogers

Applications Of Impedance Identification To Electric Ship System Control And Power Hardware-In-The-Loop Simulation , Jonathan Siegers

System Level Analysis And Design For Wireless Inter-Chip Interconnection Communication Systems By Applying Advanced Wireless Communication Technologies , Xin Zheng

Theses/Dissertations from 2015 2015

Design, Fabrication, and Characterization of Pseudomorphic and Quasi-Pseudomorphic AlGaN Based Deep Ultraviolet Light Emitting Diodes Over Sapphire , Fatima Asif

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This collection of MIT Theses in DSpace contains selected theses and dissertations from all MIT departments. Please note that this is NOT a complete collection of MIT theses. To search all MIT theses, use MIT Libraries' catalog .

MIT's DSpace contains more than 58,000 theses completed at MIT dating as far back as the mid 1800's. Theses in this collection have been scanned by the MIT Libraries or submitted in electronic format by thesis authors. Since 2004 all new Masters and Ph.D. theses are scanned and added to this collection after degrees are awarded.

MIT Theses are openly available to all readers. Please share how this access affects or benefits you. Your story matters.

If you have questions about MIT theses in DSpace, [email protected] . See also Access & Availability Questions or About MIT Theses in DSpace .

If you are a recent MIT graduate, your thesis will be added to DSpace within 3-6 months after your graduation date. Please email [email protected] with any questions.

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MIT Theses may be protected by copyright. Please refer to the MIT Libraries Permissions Policy for permission information. Note that the copyright holder for most MIT theses is identified on the title page of the thesis.

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ELECTRONIC THESES AND DISSERTATIONS : A UNIQUE OPEN ACCESS RESOURCE

Electronic Theses and Dissertations (ETD) increases the availability of research to the academic community worldwide, increase the exposure to potential employers, improve student understanding of electronic publishing issues and reduces the need for library space. Technical innovations are changing the way we communicate and share information around the globe. In addition to the multimedia aspects discussed above, the ETD will be given an address on the World Wide Web after it is publicly released so it can be accessible worldwide. The purpose of this paper is to give an overview of electronic theses and dissertations (ETD) as important and unique collections that facilitate open access.

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This article argues against policies that require students to submit theses and dissertations to electronic institutional repositories. The article counters a variety of arguments often used to justify this practice. In addition, the article reports on the results of an examination of electronic thesis and dissertation policies at more than 150 university libraries and graduate schools, offering a system of criteria and scoring for ranking these policies according to their respect for student copyright and intellectual property.

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Home > Engineering & Technology > Electrical & Computer Engineering > ECE_ETDS

Electrical & Computer Engineering Theses & Dissertations

Theses and dissertations published by graduate students in the Department of Electrical and Computer Engineering, College of Engineering, Old Dominion University since Fall 2016 are available in this collection. Backfiles of all dissertations (and some theses) have also been added.

In late Fall 2023 or Spring 2024, all theses will be digitized and available here. In the meantime, consult the Library Catalog to find older items in print.

Theses/Dissertations from 2024 2024

Dissertation: Broadband Dielectric Spectroscopic Detection of Volatile Organic Compounds With Zinc Oxide and Metal-Organic Frameworks as Solid-State Sensor Materials , Papa Kojo Amoah

Dissertation: A Trustworthy Self-Sovereign Data and Identity Management Framework , Efat Fathalla

Dissertation: Preserving Location Authenticity: Multi-Sensor System to Thwart GPS Spoofing in Self-Driving Vehicles , Peng Jiang

Thesis: Time Series Models for Predicting Application GPU Utilization and Power Draw Based on Trace Data , Dorothy Xiaoshuang Parry

Dissertation: Computational Modeling and Analysis of Facial Expressions and Gaze for Discovery of Candidate Behavioral Biomarkers for Children and Young Adults with Autism Spectrum Disorder , Megan Anita Witherow

Theses/Dissertations from 2023 2023

Dissertation: An Advanced Simulation Architecture for Testing Autonomous and Connected Vehicles Enabled by Virtual Reality , Defu Cui

Thesis: OpenSim-Based Musculoskeletal Modeling: Foundation for Interactive Obstetric Simulator , Bahador Dodge

Dissertation: Framework for Implementing Advanced Radar Plotting Aid Capability for Small Maritime Vessels , Jason Stark Harris

Thesis: Generation Of Plasma with a Rotating Electric Field , Franklin Price Mosely

Dissertation: Deep-Learning-Based Classification of Digitally Modulated Signals , John A. Snoap

Dissertation: Wearable Sensor Gait Analysis for Fall Detection Using Deep Learning Methods , Haben Girmay Yhdego

Dissertation: Towards a Robust Defense: A Multifaceted Approach to the Detection and Mitigation of Neural Backdoor Attacks through Feature Space Exploration and Analysis , Liuwan Zhu

Theses/Dissertations from 2022 2022

Dissertation: A Preventive Medicine Framework for Wearable Abiotic Glucose Detection System , Saikat Banerjee

Dissertation: Development of High Quantum Efficiency Strained Superlattice Spin Polarized Photocathodes Via Metal Organic Chemical Vapor Deposition , Benjamin Belfore

Dissertation: Optimization of 8-Plate Multi-Resonant Coupling Structure Using Class-E 2 Based Capacitive-Wireless Power Transfer System , Yashwanth C. Bezawada

Dissertation: Detection, Tracking, and Classification of Aircraft and Birds from Multirotor Small Unmanned Aircraft Systems , Chester Valentine Dolph

Thesis: Emotion Detection Using an Ensemble Model Trained with Physiological Signals and Inferred Arousal-Valence States , Matthew Nathanael Gray

Thesis: Fabrication of NMOS Logic Gates , Samantha Hahn

Dissertation: Cyber Resilience Analytics For Cyber-Physical Systems , Md Ariful Haque

Thesis: Integrative Physiology-Coupled Pilot-Centered Flight Simulation , Shawn C. Harrison

Thesis: Frequency Agile OFDM System for Radio Communication in High Frequency Bands , Erin E. Hill

Dissertation: Applied Deep Learning: Case Studies in Computer Vision and Natural Language Processing , Md Reshad Ul Hoque

Dissertation: Development and Validation of a Three-Dimensional Optical Imaging System for Chest Wall Deformity Measurement , Nahom Kidane

Thesis: Machine Learning Classification of Digitally Modulated Signals , James A. Latshaw

Dissertation: E-Beam Irradiation Beamline at Jefferson Lab for Wastewater Treatment , Xi Li

Thesis: Chen-Fliess Series for Linear Distributed Systems , Natalie T. Pham

Dissertation: Recrystallization of Cu(In,Ga)Se 2 Semiconductor Thin Films Via Metal Halides Treatment , Deewakar Poudel

Dissertation: Fabrication of Nb 3 Sn by Magnetron Sputtering for Superconducting Radiofrequency Application , Md Nizam Sayeed

Thesis: Development of a Fuzzy Logic Model-Less Aircraft Controller , Christopher M. Scott

Thesis: Design and Analysis of Electrical Power and Communication Systems for 3U SeaLion CubeSat Mission , Joseph D. Siciliano

Theses/Dissertations from 2021 2021

Dissertation: Enhancing Thermal Stability of Perovskite Solar Cells with a Polymer Through Grain Boundary Passivation , Tanzila Tasnim Ava

Dissertation: Specification, Control, and Applications of Z-Source Circuit Breakers for the Protection of DC Power Networks , Sagar Bhatta

Dissertation: Protection and Disturbance Mitigation of Next Generation Shipboard Power Systems , Marounfa Djibo

Dissertation: Wiener-Fliess Composition of Formal Power Series: Additive Static Feedback and Shuffle Rational Series , Subbarao Venkatesh Guggilam

Dissertation: Deep Learning Approaches for Seagrass Detection in Multispectral Imagery , Kazi Aminul Islam

Thesis: Security Improvements for the Automatic Identification System , Robert E. Litts

Dissertation: Electrostatic Design and Characterization of a 200 keV Photogun and Wien Spin Rotator , Gabriel G. Palacios Serrano

Dissertation: Commissioning & Characterization of Magnetized Gridded Thermionic Electron Source , Mark Stefani

Dissertation: Towards Characterizing Adversarial Opportunity and Behavior in Critical Infrastructure Network , Md Sharif Ullah

Dissertation: Joint Linear and Nonlinear Computation with Data Encryption for Efficient Privacy-Preserving Deep Learning , Qiao Zhang

Theses/Dissertations from 2020 2020

Thesis: Deposition and Characterization of Indium Nitride and Aluminum Nitride Thin Films by Reactive Sputtering , Sushma Swaraj Atluri

Dissertation: A Novel Non-Enzymatic Glucose Biofuel Cell with Mobile Glucose Sensing , Ankit Baingane

Thesis: Hardware Development for the Generation of Large-Volume High Pressure Plasma By Spatiotemporal Control of Space Charge , Nikhil Boothpur

Dissertation: Secure Mobile Computing by Using Convolutional and Capsule Deep Neural Networks , Rui Ning

Dissertation: Topology Control, Scheduling, and Spectrum Sensing in 5G Networks , Prosanta Paul

Dissertation: Longitudinal Brain Tumor Tracking, Tumor Grading, and Patient Survival Prediction Using MRI , Linmin Pei

Dissertation: Model-Based Approach for Diffuse Glioma Classification, Grading, and Patient Survival Prediction , Zeina A. Shboul

Dissertation: Diagnostic Studies of Non-Thermal Atmospheric Pressure Nanosecond Plasma Jets , Shutong Song

Thesis: Highly Transmissive Scalable Colored Coatings for Architectural Photovoltaic Panels , Akbar Ali Syed

Dissertation: Deep Cellular Recurrent Neural Architecture for Efficient Multidimensional Time-Series Data Processing , Lasitha S. Vidyaratne

Dissertation: Virtual SATCOM, Long Range Broadband Digital Communications , Dennis George Watson

Dissertation: Comprehensive Designs of Innovate Secure Hardware Devices against Machine Learning Attacks and Power Analysis Attacks , Yiming Wen

Theses/Dissertations from 2019 2019

Thesis: Pulse Power Effects on Transient Plasma Ignition for Combustion , David Wayne Alderman II

Thesis: Demonstration of Visible and Near Infrared Raman Spectrometers and Improved Matched Filter Model for Analysis of Combined Raman Signals , Alexander Matthew Atkinson

Dissertation: Laser-Spark Multicharged Ion Implantation System ‒ Application in Ion Implantation and Neural Deposition of Carbon in Nickel (111) , Oguzhan Balki

Thesis: Radio Frequency Toolbox for Drone Detection and Classification , Abdulkabir Bello

Thesis: Computational Analysis of Antipode Algorithms for the Output Feedback Hopf Algebra , Lance Berlin

Thesis: Solid State Polyaniline Supercapacitors Based on Electrodes Fabricated with Electropolymerization , Jonathan R. Blincoe

Thesis: Design, Implementation, and Analysis of Electrical System Architecture for CubeSat to Ground Communications , Anthony G. Cappiello

Thesis: A Design of Inductive Coupling Wireless Power Transfer System for Electric Vehicle Applications , Sarika Reddy Daida

Dissertation: A Multi-Agent Systems Approach for Analysis of Stepping Stone Attacks , Marco Antonio Gamarra

Dissertation: Using Feature Extraction From Deep Convolutional Neural Networks for Pathological Image Analysis and Its Visual Interpretability , Wei-Wen Hsu

Dissertation: Enhanced Sensing Performance of Novel Nanostructured ZnO Gas Sensors in Ethanol Vapor Concentration Detection Applications , Pengtao Lin

Dissertation: Performance of Cognitive Radio Networks with Unknown Dynamic Primary User Signals , Sara L. MacDonald

Dissertation: Effect of Grain Size and Interface Engineering on the Photovoltaic Performance and Stability of Perovskite Solar Cells , Abdullah Al Mamun

Dissertation: A Laser Ion Source for Thin Film Deposition: Characterization of Source and Growth Conditions , Md Mahmudur Rahman

Thesis: Cyber Security- A New Secured Password Generation Algorithm with Graphical Authentication and Alphanumeric Passwords Along With Encryption , Akash Rao

Dissertation: MIMO Radar Waveform Design and Sparse Reconstruction for Extended Target Detection in Clutter , Christopher Alan Rogers

Dissertation: On Analytic Nonlinear Input-output Systems: Expanded Global Convergence and System Interconnections , Irina M. Winter Arboleda

Theses/Dissertations from 2018 2018

Dissertation: Deep Recurrent Learning for Efficient Image Recognition Using Small Data , Mahbubul Alam

Thesis: Characterization of Language Cortex Activity During Speech Production and Perception , Hassan Baker

Dissertation: Coexistence and Secure Communication in Wireless Networks , Saygin Bakşi

Thesis: Model-Less Fuzzy Logic Control for the NASA Modeling and Control for Agile Aircraft Development Program , Keith A. Benjamin

Thesis: Non-Destructive Evaluation for Composite Material , Desalegn Temesgen Delelegn

Thesis: Improved Thermal Stability of Cesium-Doped Perovskite Films With PMMA for Solar Cell Application , Christine M. Gausin

Thesis: A Dual Resonant Transformer and a Dielectric Antenna for Picosecond Pulse Radiation , Khiem Huynh

Thesis: A Novel Power Sharing Control Method for Distributed Generators in DC Networks , Christina James

Thesis: IDPAL - Input Decoupled Partially Adiabatic Logic: Implementation and Examination , Kevin A. Johnson

Thesis: New Method of Nickel Oxide as Hole Transport Layer and Characteristics of Nickel Oxide Based Perovskite Solar Cell , Loi Nguyen

Dissertation: Non-Invasive Picosecond Pulse System for Electrostimulation , Ross Aaron Petrella

Dissertation: Optimization of Top Contact for Cu(In,Ga)Se2 Solar Cells , Grace Cherukara Rajan

Dissertation: Generation of Large-Volume Diffuse Plasma by an External Ionization Wave From a Single-Electrode Plasma Jet , Seyed Hamid Razavi Barzoki

Dissertation: 3D Bioprinting Systems for the Study of Mammary Development and Tumorigenesis , John Reid

Dissertation: Development of a Laser-Spark Multicharged Ion System – Application in Shallow Implantation of Sic by Boron and Barium , Md. Haider Ali Shaim

Thesis: Learn-To-Fly Control System Design , Alexander Brent Streit

Theses/Dissertations from 2017 2017

Thesis: Diffusion Modeling of Impurities Through the Molybdenum Back Contact of CIGS Solar Cells , Chinedum John Akwari

Dissertation: Study of Modified Deposition Process for Cu(In,Ga)Se2 Solar Cell Back Contact , Tasnuva Ashrafee

Thesis: Virtual Substrate Synthesis for Low-Cost High Efficiency III-V , Sean J. Babcock

Dissertation: Speech Based Machine Learning Models for Emotional State Recognition and PTSD Detection , Debrup Banerjee

Thesis: Study of a High-Efficient Wide-Bandgap DC-DC Power Converter for Solar Power Integration , Yashwanth Bezawada

Thesis: Modification of Deposition Process Parameters for Uniform Indium Layer Deposition , Isaac Butt

Dissertation: Enhancement of Thermoelectric Properties of ALD Synthesized PbTe and PbSe by Phonon Engineering , Xin Chen

Thesis: A Correlational Study of SansEC Sensors’ Electric Field Distribution on Lightning Attachment , Kayla M. Farrow

Thesis: Recurrent Neural Networks and Matrix Methods for Cognitive Radio Spectrum Prediction and Security , Alexander M. Glandon

Thesis: A Study of the Sensitivity of Energy Conversion Efficiency to Load Variation in Class-E Resonant Power Inverter , Richard Samuel Jennings

Thesis: Investigation of Low Cost Substrate Approaches for III-V Solar Cells , Marlene Lydia Lichty

Thesis: Deposition of Silicon Thin Films by Ion Beam Assisted Deposition , Tejaswini Miryala

Dissertation: Low Temperature Plasma for the Treatment of Epithelial Cancer Cells , Soheila Mohades

Dissertation: The Efficacy of Programming Energy Controlled Switching in Resistive Random Access Memory (RRAM) , David Malien Nminibapiel

Dissertation: Computational Modeling for Abnormal Brain Tissue Segmentation, Brain Tumor Tracking, and Grading , Syed Mohammad Shamin Reza

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Electrical and Electronic Engineering Theses

Permanent uri for this collection.

This collection is made up of doctoral and master theses by research, which have been received in accordance with university regulations.

For more information, please visit the UCD Library Theses Information guide .

Recent Submissions

• Publication RF Amplification and Filtering Techniques for Cellular Receivers ( University College Dublin. School of Electrical and Electronic Engineering, 2021 ) Bozorg, Amir   The usage of various wireless standards, such as Bluetooth, Wi-Fi, GPS, and 4G/5G cellular, has been continually increasing. In order to utilize the frequency bands efficiently and to support new communication standards with lower power consumption, lower occupied volume and at reduced costs, multimode transceivers, software defined radios (SDRs), cognitive radios, etc., have been actively investigated. Broadband behavior of a wireless receiver is typically defined by its front-end low-noise amplifier (LNA), whose design must consider trade-offs between input matching, noise figure (NF), gain, bandwidth, linearity, and voltage headroom in a given process technology. Moreover, monolithic RF wireless receivers have been trending toward high intermediatefrequency (IF) or superhetrodyne radios thanks to recent breakthroughs in silicon integration of band-pass channel-select filters. The main motivation is to avoid the common issues in the currently predominant zero/low-IF receivers, such as poor 2nd-order nonlinearity, sensitivity to 1/f (i.e. flicker) noise and time-variant dc offsets, especially in the fine CMOS technology. To avoid interferers and blockers at the susceptible image frequencies that the high-IF entails, band-pass filters (BPF) with high quality (Q) factor components for sharp transfer-function transition characteristics are now required. In addition, integrated low-pass filters (LPF) with strong rejection of out-of-band frequency components are essential building blocks in a variety of applications, such as telecommunications, video signal processing, anti-aliasing filtering, etc. Attention is drawn toward structures featuring low noise, small area, high in-/out-of-band linearity performance, and low-power consumption. This thesis comprises three main parts. In the first part (Chapters 2 and 3), we focus on the design and implementation of several innovative wideband low-noise (transconductance) amplifiers [LN(T)A] for wireless cellular applications. In the first design, we introduce new approaches to reduce the noise figure of the noise-cancellation LNAs without sacrificing the power consumption budget, which leads to NF of 2 dB without adding extra power consumption. The proposed LNAs also have the capability to be used in current-mode receivers, especially in discrete-time receivers, as in the form of low noise transconductance amplifier (LNTA). In the second design, two different two-fold noise cancellation approaches are proposed, which not only improve the noise performance of the design, but also achieve high linearity (IIP3=+4.25 dBm). The proposed LN(T)As are implemented in TSMC 28-nm LP CMOS technology to prove that they are suitable for applications such as sub-6 GHz 5G receivers. The second objective of this dissertation research is to invent a novel method of band-pass filtering, which leads to achieving very sharp and selective band-pass filtering with high linearity and low input referred (IRN) noise (Chapter 4). This technique improves the noise and linearity performance without adding extra clock phases. Hence, the duty cycle of the clock phases stays constant, despite the sophisticated improvements. Moreover, due to its sharp filtering, it can filter out high blockers of near channels and can increase the receiver’s blocker tolerance. With the same total capacitor size and clock duty cycle as in a 1st-order complex charge-sharing band-pass filter (CS BPF), the proposed design achieves 20 dB better out-of-band filtering compared to the prior-art 1st-order CS BPF and 10 dB better out-of-band filtering compared to the conventional 2nd-order C-CS BPF. Finally, the stop-band rejection of the discrete-time infinite-impulse response (IIR) lowpass filter is improved by applying a novel technique to enhance the anti-aliasing filtering (Chapter 5). The aim is to introduce a 4th-order charge rotating (CR) discrete-time (DT) LPF, which achieves the record of stop-band rejection of 120 dB by using a novel pseudolinear interpolation technique while keeping the sampling frequency and the capacitor values constant.   114
• Publication Frequency Control of Virtual Power Plants ( University College Dublin. School of Electrical and Electronic Engineering, 2022 ) Zhong, Weilin   ; 0000-0001-6737-4873 The Virtual Power Plant (VPP) concept refers to the aggregation of Distributed Energy Resources (DERs) such as solar and wind power plants, Energy Storage Systems (ESSs), flexible loads, and communication networks, all coordinated to operate as a single generating unit. Using as starting point a comprehensive literature review of the VPP concept and its frequency regulation technologies, the thesis proposes a variety of frequency control and state estimation approaches of VPPs, as follows. First, the thesis studies the impact of coordinated frequency control of VPPs on power system transients, in which ESSs are utilized to provide fast frequency regulation. The thesis also proposes a simple yet effective coordinated control of DERs and ESSs able to integrate the total active power output of the DERs, and, thus, to improve the overall power system dynamic performance. The impact of topology on the primary frequency regulation of VPPs is also investigated. With this regard, two types of VPPs topologies are considered, that is, a topology where the DERs that compose the VPP are scattered all-over the transmission grid; and a topology where the DERs are all connected to the same distribution system that is connected to the rest of the transmission grid through a single bus. Next, the thesis proposes a control scheme to improve the dynamic response of power systems through the automatic regulators of converter-based DERs. In this scheme, both active and reactive power control of DERs are varied to regulate both frequency and voltage, as opposed to current practice where frequency and voltage controllers are decoupled. To properly compare the proposed control with conventional schemes, the thesis also defines a metric that captures the combined effect of frequency/voltage response at any given bus of the network. Finally, the thesis presents an on-line estimation method to track the equivalent, time-varying inertia as well as the fast frequency control droop gain provided by VPPs. The proposed method relies on the estimation of the rate of change of the active and reactive power at the point of connection of the VPP with the rest of the grid. It provides, as a byproduct, an estimation of the VPP’s internal equivalent reactance based on the voltage and reactive power variations at the point of connection. Throughout the thesis, the proposed techniques are duly validated through time domain simulations and Monte Carlo simulations, based on real-world network models that include stochastic processes as well as communication delays.   164
• Publication Low-Complexity Digital Predistortion for 5G Massive MIMO and Handset Transmitters ( University College Dublin. School of Electrical and Electronic Engineering, 2022 ) Wang, Xiaoyu   The demand for new wireless communication systems to support high mobility and low latency necessitates a rethink of the architecture of wireless communication systems as well as the design of their key components. This thesis presents several novel techniques to solve the major challenges in digital predistortion (DPD) for millimeter wave multi-input multi-output (MIMO) and handset transmitters to lower the hardware cost and computational complexity of the fifth generation (5G) communication systems. The first part of the thesis focuses on the architecture of the MIMO DPD solution for 5G transmitters. To extract DPD model coefficients, a feedback data acquisition path is required. In conventional single-input single-output (SISO) systems, the output is usually acquired directly from the power amplifier (PA) with a coupler. In massive MIMO systems, the number of RF chains is large. Using dedicated feedback paths for each PA separately is not feasible. To lower the hardware cost, a novel data acquisition scheme is proposed to obtain the output signals in far field over the air (OTA) using a single antenna and feedback loop, and then reconstruct the output of each PA. Simulation and experimental results demonstrate that the proposed OTA data acquisition can accurately reconstruct the output of each PA in the MIMO systems and the DPD solutions derived from the reconstructed data can successfully linearize the nonlinear MIMO transmitters. In the multi-user scenario, the nonlinearity of the transmitters varies with the movement of user equipments (UEs), and the DPD model coefficients need to be updated accordingly. To meet the requirement of high mobility, the complexity of the system update must be low. In the second part of the thesis, we present a new DPD system, where DPD model can be updated fast and accurately without capturing PA output or applying costly model extraction algorithms. In the proposed method, nonlinear characteristics of the PA are encoded into low-dimensional PA features using feature extraction algorithms. To identify DPD model coefficients, PA features are extracted first and the DPD model coefficients are then generated directly by DPD generator with PA features. Experimental results show that the proposed DPD solution can linearize PA with very low complexity compared to that using the conventional solutions. Finally, the focus shifts to handset transmitters. Conventionally, DPD is usually deployed for high power base stations. With the continuously increasing bandwidth, DPD may also be required for handset PAs in 5G communication systems. Different from the models used for base stations, DPD model for handset PAs must have very low complexity because of the stringent power budget limit. At the same time, the tolerance for load mismatch must also be considered. The third part of the thesis analyzes the characteristics of handset PAs with load mismatch and introduces a low-complexity DPD model based on magnitude-selective affine (MSA) function. Experimental results demonstrate that the extended MSA (EMSA) model shows better linearization performance while keeping much lower complexity than the conventional DPD models.   27
• Publication Circularly Polarized Antennas for 5G Millimetre-Wave Communications ( University College Dublin. School of Electrical and Electronic Engineering, 2022 ) Sadeghi-Marasht, Samaneh   The need of a higher data rate, lower latency, and cost efficiency led to the fifth-generation (5G) emerging as a new communication standard. This generation includes many unused frequencies with high available bandwidth channels that can provide higher capacities such as millimeter-wave (mm-wave) bands. One of the main challenges of working at high frequencies of this generation is path loss that needs to be addressed. To overcome this issue, a high gain antenna with a small size is required. Consequently, the first major question arises: how to effectively increase the gain and efficiency of the antenna at a high frequency with a small size. Importantly, it is vital to transport as much as data is possible without any sensitivity to the alignment of the transmitter or receiver antenna that can be satisfied by using circularly polarized (CP) radiating waves. Thus, the second research question emerges: how to provide high gain small size antenna with CP at high frequencies. To address the first two major research questions in this thesis we designed a miniature dual-band CP antenna that works at 28 GHz and 38 GHz with high gain. This antenna can be implemented in mobile devices, unmanned aerial vehicles (UAVs), and base stations (BSs) because of the small sizes of 11 × 14 × 0.508 mm3. For getting a deep insight into the structure and the design procedures of the dual-band antenna, characteristic mode analysis (CMA) is employed. Note that the CMA is not sensitive to the feeding position and the material in this analysis is not lossy. Therefore, after using CMA, the optimization is conducted in the full-wave simulation as the feeding is added to the structure, and the material is lossy. The single CP antenna covered the bands of 27-28.4 GHz and 34.7-40 GHz, with a maximum gain of 6.3 dBiC and 5.51 dBiC at 28 GHz and 38 GHz, respectively, whereas the radiation efficiency is 94% and 96% with the ARBW of 2.5% and 1.5%. A phased antenna array is then constructed to provide a higher gain for this designed dual-band antenna. In a phased antenna array we consider four designed single element antennas close to each other to create a 2 × 2 antenna array with high gain at 28 GHz and 38 GHz. For a 4 × 4 antenna array, an electromagnetic band-gap (EBG) is used to reduce the mutual coupling between elements in the array. The radiating signals will be sent to different users with circular polarization via electronic beamforming. The position of each antenna element is also optimized to provide the constructive radiating wave towards our desired directions. The array was able to steer the beam between -26.5 to 29.5 degrees for the lower band and -29.5 to 35.5 degrees for the higher band with the maximum gain of 12.8 dBiC and 11.5 dBiC, respectively. Another method to enhance the gain is implementing a lens structure in front of the radiating antenna. Here, a significant challenge is to maintain the CP of the incoming CP wave while the gain is increased. Therefore, the third research question is how to design a lens with the capability of enhancing the gain and keeping the CP when the lens is fed by a CP antenna source. Concerning the third major research question, in this thesis, we designed a CP lens structure. First, a multi-layer lens with a thickness of 2.03 mm was designed, and then a one-layer lens structure with a thickness of just 0.508 mm was made. The lens was located in front of different radiating antennas. These lens structures resulted in significant gain enhancement for various feeding antennas working at 28 GHz. The unit cell of the one-layer lens can provide a broad phase shift compared to the multi-layer counterpart. The proposed lens structures not only increased the gain of the incoming CP wave but also kept its polarization to overcome the issues of reflectivity, absorption, inclement weather, and mis   16
• Publication Contributions to the theory and development of low-jitter bang-bang integrated frequency synthesizers ( University College Dublin. School of Electrical and Electronic Engineering, 2022 ) Avallone, Luca   The advent of next-generation wireless standards demands ever-increasing data-rate communication systems. It mainly involves a higher carrier frequency to take advantage of wider bandwidth channels and more complex modulation schemes to pack more information into each symbol. In this context, the bottleneck is represented by the frequency synthesizer used to generate the local oscillator signal for the transceiver, which has to operate under stringent low output jitter requirements. Such performance must be provided at low power dissipation and area consumption in order to meet the requirements of low-cost and high integration level of the modern communication systems. The digital phase locked loop architecture can meet the required jitter performance while synthesizing fractional-N frequencies. Such PLLs offer significant advantages over their traditional analog counterpart in terms of area occupation, flexibility and scalability in advanced deep sub-µm CMOS technologies. The digital PLL topology based on a bang-bang phase detector, denoted bang-bang PLL, which is a single bit digital phase detector, leads to a less complex and more power-efficient architecture, but, on the other hand, it also introduces a hard nonlinearity in the loop, making the analysis of the bang-bang topology more challenging than in the multi-bit case. A comprehensive phase noise analysis of bang-bang digital PLLs is presented which overcomes the limitations of previous models and it is valid in all cases where physical noise sources (i.e. reference and DCO) are dominant with respect to quantization errors. In particular, (i) input-referred jitter is estimated by means of a linear time-domain analysis derived from a nonlinear DPLL model, and (ii) phase noise spectra are predicted using a discrete-time domain model that accounts for time-variant effects that arise from the intrinsic multirate nature of the DPLL. The possibility of accurately determining the DPLL jitter and phase noise spectra, enabled by the novel analysis presented in this thesis, is key to significantly speeding up the design-space exploration phase, since it allows one to perform quick and precise parametric sweeps. However, even when designed properly, bang-bang PLLs are affected by the unavoidable bang-bang phase detector quantization noise, which is added on top of the intrinsic reference and DCO phase noise. The quantization noise can be appreciated in the PLL's output spectrum as increased in band noise with respect to the analog counterpart, that, in fact, still achieves superior performance in terms of jitter-power. This results in worse integrated jitter performance for the same intrinsic levels of reference and oscillator phase noise. To overcome the binary phase detector quantization noise in DPLLs, state-of-the-art works rely on a multi-bit time-to-digital converter to digitize the PLL phase error with a physical resolution below the input jitter, leading to increased design complexity, with an associated area and power penalty. In order to overcome the ultimate limit of the bang-bang PLL, a digital PLL based on a bang-bang phase detector with adaptively optimized noise shaping has been fabricated in a 28nm CMOS process. The prototype occupies a core area of 0.21 mm2 and draws 10.8 mW power from a 0.9 V supply. The integrated jitter is 69.52 fs and 80.72 fs for the integer-N and the fractional-N case, respectively. Achieving a jitter-power figure-of-merit of -251.5 dB in fractional-N mode, the proposed system effectively bridges the gap to analog implementations. The first chapter of this work is introductory, and is intended to give some background information needed to underpin the remaining part of the thesis. The following chapters, 2, 3 and 4, collect the results achieved during the PhD activity, and each of them is associated with a publication. In the last chapter, conclusions are drawn and the open points are discussed in order to be considered for future work.   244
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Electronics And Communications Engineering Bachelor's Theses

Theses/dissertations from 2023 2023.

Portable semi-autonomous robot for agricultural insect pest recognition and elimination , John Dominic B. Aguila, Gian Kendrick T. Go, Carl Nixon D. Ong, Marc Lance J. Orsos, and Bryan Kenneth Q. Que-Unsu

Developing an automated IoT-based indoor farming system with optimal LED light quality control for leafy vegetable growth , Andre' Mitchelle L. Bamba, Elmark Joseph L. Corpus, Martin Adrian C. Enghoy, and Hanna Camille B. Gabay

LoRa on the bus: Time and location monitoring system for P2P buses , John Herald Angeles Bañez, Polo Gi Magtibay Dimayuga, Dominic Andrei Gawat Limpengco, and Lorenzo Miguel Ricafranca Pepino

PnP-MEDER: A plug-and-play P2P modular DC microgrid solution for rural areas , Angelo S. Casimiro, Lois Raniel D. Closa, Juan Miguel A. Sanchez, and Pierre Randell S. Yao

Development of an automated microcontroller-based in-vessel composting system for the household setting , Malcolm Andersen H. Co, Jan Ralph U. Go, Francis John N. Magallanes, and John Matthew B. Vong

Machine learning-based identification and classification of pulmonary nodules , Theodore Benito Cham Coteok II, Lenard Ryan Santos Llarenas, Joseph Villa Portugal, and Matthew Edward Segismundo Toro

Development of a cloud-based robotic arm platform in electrical circuit laboratory for Labvolt Equipment , Athena Bianca P. Dionido, Erika Kimberly H. Go, Matthew H. Gonzales, Jahmil Gabriel P. Reyes, and Errol John S. Velasco

A network-based solution and knowledge-building portal for monitoring goat feeding behavior pattern and agricultural technology information sharing , Anton Luis C. Garces, Gianne Marcus V. Obusan, Julianne Abbe R. Ong, and Samuel C. Perez

Intelligent flock of surface vehicles for collecting solid waste in bodies of water , Carl Heinrich I. Ong, Enrico Sebastian C. Salazar, Pierre Marie R. Salvador, and Oliver Scott Y. Te

Theses/Dissertations from 2022 2022

A remote monitoring system for pico-hydroelectric system , Darlene Alyssa P. Abaluna

Detection of harmful gasses in improvised explosive device using android technology: A prototype , Adrian William S. Alano, Arl Marion Josef Lintag Divino, and David Manasseh Crisostomo Soliman

Joystick controlled autonomous robotic arm using inverse kinematics with object detection , Edmark Jayson Q. Aldea, Roger Jayson M. Mendez III, Macario N. Peralta V, and Lia Sophia Y. San Miguel

Universal robust vehicle identification system , Lorenz Joshua Sebastian Alfonso, Tiffany Joy Ferrer Benitez, Cseanne Jaycons Original Cabalquinto, Francis Jerome Tabieros Perez, and Janet Yang

Human presence detection based on gathered thermal datasets through deep learning , Miguel Carlos Cariño Amoroso, Kenneth Roel Catapang Atienza, Riff Kurtees Tan Ladera, and Nico Angelo Mendoza Menodiado

Real-time spectrophotometric determination of coffee roast degree , Jerome Moises L. Andres, Angelo C. Araño, Don Levi Andre V. Diwara, and Cedric Paul M. Sazon

Solid waste identification and segregation hub (S.W.I.S.H.) , Ryan Jasper V. Ang, Justin James N. Hizon, and Kyle Daniel P. Pimentel

Development of a home healthcare system for a person under monitoring with remote access through web application , Jan Luis V. Antoc, Teofilo M. Contreras Jr., Michael Ryan B. Panes, and Emerson Karl M. Tiu

Drone team manipulation using hand gestures for object transportation , Reginald Geoffrey Lausa Bayeta IV, Kyle Jomar Casabuena Megino, Angelo Jose Teodorico Diaz Parco, and Anjelo Louise Gerardo Vicente

Development and implementation of a game theory based ride-sharing technique , Gabriel Antonio M. Borja, Gerard Ryan C. Ching, Francis Miguel M. Espiritu, and Kerwin D. Go

Design and implementation of LoRaWAN autonomous base station as a communication network for rural areas , John Benedict M. Carbonel, Angelo Crom S. Pestaño, Gilbert M. Roque Jr., Migio Antonio C. Tan II, and Raphaele Timothy A. Villarubin

Advance scorecard for boxing: Combat sport analysis with deep learning , Phillip Christian C. Cardino, Jamie Lynn T. Chua, and John Rossi Rafael R. Llaga

Designing a semi-autonomous medicine dispensing mobile robot using IoT with obstacle detection capabilities , Maria Victoria Tuazon Ching, Margaret Justo Dionisio, Stephen Gabriel Fernandez Garbo, Jann Carlo Nano Red, and Vince Macanas Salloman

Dagas: A mobile and web-based disaster relief goods management system , Kenley Lewis Ting Chiu, Jet Orville Que Chua, Emil John David Lopez, and Josef Lyle Huan Solis

PCB fault detection through the use of convolutional neural networks , Aivan Jarell P. Chua and Daniel Edric Y. Ong

Emotion-based music player using facial recognition , Adrian Richton D. Co, Nathan Jonah D. Delgado, and Jose V. Medalla III

E-balloon: A propellerless flight control system , Patrick Ross S. Coronel, Rafael Antonio S. Duenas, Efi Mikhael B. Gabriel, and Kyle Austin B. Hartigan-Go

Development of mobile-based point of sales android application for food and drink stalls , Trisha Angeline M. DeVera

Automated IoT enabled vertical farming: Planting atypical crops in an urban environment , Floyd Robert Cocabo Dim and Daniel Lester Costes Guillermo

Breast cancer screening application using thermographic images and machine learning analysis , Rency Christelle O. Evidente, Vincent Rafael T. Sayoc, Jason Patrick T. Uy, and Leila Yasmin C. Young

MRT trains mobility tracking using LoRa network , Samuel Alexander A. Pasia, Vince Matthew A. Rivera, Jereme Adriane D.G. Sy, and Bianca Clarisse Y. Tan

WiFi-based indoor positioning system in a multilevel building , Joshua Kenichi Y. Sim, Rica Rizabel M. Tagabuhin, and Jan Jayson S.D. Tirados

Theses/Dissertations from 2021 2021

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ETDs: Virginia Tech Electronic Theses and Dissertations

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Virginia Tech has been a world leader in electronic theses and dissertation initiatives for more than 20 years. On January 1, 1997, Virginia Tech was the first university to require electronic submission of theses and dissertations (ETDs). Ever since then, Virginia Tech graduate students have been able to prepare, submit, review, and publish their theses and dissertations online and to append digital media such as images, data, audio, and video.

University Libraries staff are currently digitizing thousands of pre-1997 theses and dissertations and loading them into VTechWorks. Most of these theses and dissertations are fully available to the public, but we will, in general, honor requests by the item's author to restrict access to Virginia Tech only. See our process for Requesting that Material be Amended or Removed .

To search all Virginia Tech print and digital theses and dissertations, use the University Libraries ETD resource guide .

Materials that are restricted to Virginia Tech only may be requested via your own university or public library's Interlibrary Loan program or through the VTechWorks request form that appears when you try to access the item. You might also be able to obtain a copy of the work through ProQuest's database of theses and dissertations. If you are on a Virginia Tech campus but are unable to find the pre-1997 thesis or dissertation you are seeking in VTechWorks, you may also be able to order a physical copy from library storage. Please check the library catalog at http://www.lib.vt.edu/ for physical copies.

The guidelines that apply to Virginia Tech's graduate students as ETD authors can be found at http://guides.lib.vt.edu/ETDguide .

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Electronic Theses and Dissertations

The Electronic Theses and Dissertation (ETD) website is a one-stop shop for everything graduate students need for submitting their final documents electronically. The ETD Guide provides step-by-step instructions, with visual examples, to help explain the Graduate School’s formatting and production requirements. Students are encouraged to read the ETD Guide before writing and make sure to refer to the guide throughout the writing process. Using one of our ETD templates can also simplify the formatting process.

Before submitting the first ETD draft, all students should review the ETD Process page , which provides important details about each stage of the ETD review and approval process.  Also, students are encouraged to review this ETD formatting checklist , which covers some common issues.

The NC State Graduate School offers 100% electronic processing for graduate theses and dissertations. This means that all ETD reviews, ETD final submissions, Graduate School and Advisory Committee ETD approvals, and NCSU Library catalogs are electronic. The public may access NC State ETDs online on the library’s repository website.  After consulting the ETD Guide, feel free to send any questions to the ETD Reviewer ( [email protected] ).

• ETD Process 
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Journal of Materials Chemistry C

Transient polymer electronics enabled by grafting of oligo-3-hexylthiophenes onto polycaprolactone.

One of the desirable properties of organic electronics materials, especially for their use in wearable and medical electronics, is transience, where the material undergoes controlled degradation into harmless byproducts after a predefined period of use. Conducting polymer-based materials have emerged as highly promising candidates for transient electronics, owing to their inherent versatility in chemical modification and synthesis. Here, we present a novel approach to achieve transience in polymer electronic materials featuring varying lengths of conductive oligo 3-hexylthiophene (O3HT) grafted, at different densities, onto a degradable polycaprolactone (PCL) backbone. The copolymers can be fabricated into flexible thin films that, upon doping, exhibit semiconducting properties with conductivities of up to 0.560 S cm-1. Notably, these copolymers demonstrate susceptibility to degradation in both acidic and alkaline environments. Moreover, their potential for integration into flexible electrochemical devices is promising, as demonstrated by their use in an organic electrochemical transistor (OECT) device.

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E. W. C. Chan, X. Sun, Y. Uda, B. Zhu, D. Barker and J. Travas-Sejdic, J. Mater. Chem. C , 2024, Accepted Manuscript , DOI: 10.1039/D3TC04621D

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