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Filtering by: Advisor Magana, Mario Remove constraint Advisor: Magana, Mario Decade 2010-2019 Remove constraint Decade: 2010-2019

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  • Massive MIMO Channel Characterization

    Creator:
    Assiri, Mohammad
    Abstract:
    It has been estimated that data traffic from the different mobile devices that range from smartphones to machine-to-machine (M2M) devices will exceed 15.9 exabyte per month by the year 2018. With this immense data growth, the current wireless communication systems suffer from the scarcity of the radio spectrum and eventually...
    Resource Type:
    Masters Thesis
    Full Text:
    : Massive MIMO Channel Characterization Abstract approved: Mario E. Magaña It has been estimated that

  • Inertial control of a beamforming antenna array for use in cellular phones

    Creator:
    Schmidt, Patrick (Patrick Lane)
    Abstract:
    This research explores the viability and effectiveness of using an inertial navigation system (INS) to control a beamforming array of microstrip patch antennas with the aim of reducing users' exposure to electromagnetic radiation. The system reduces radiated power directed toward a cellular phone user to below 10% of the total...
    Resource Type:
    Masters Thesis
    Full Text:
    , Professor Mario E. Magaña, who has provided me with guidance every step of the way and without whom this

  • Coding Techniques for Achieving Efficient Wireless Sensor Networks

    Creator:
    Qassim, Yousef M.
    Abstract:
    In this dissertation, we explored multiple coding techniques to reduce energy consumption, improve performance, and secure wireless sensor networks specifically and ad-hoc networks in general. With the introduction of Internet of Things (IoT) and 5G technologies, wireless sensor networks are quickly emerging as an important and key technology in the...
    Resource Type:
    Dissertation
    Full Text:
    , and Jawad for believing in me and being there when I needed them. I like to thank Prof. Mario Magaña

  • Distributed Dynamic Multi-Area State Estimation with Fusion Technique

    Creator:
    Guo, Jia
    Abstract:
    As the power system grows larger and more complex, real-time monitoring and control become very significant in order to achieve reliable operation of the power system. Before any security assessment can be made or control actions are taken, the reliable estimate of the existing state of the system must be...
    Resource Type:
    Dissertation
    Full Text:
    : Distributed Dynamic Multi-Area State Estimation with Fusion Technique Abstract approved: Mario E. Magaña

  • Channel Estimation in TDD MU-MIMO Systems using Sub-Linear Sparse Signal Recovery Algorithms

    Creator:
    Barry, David G.
    Abstract:
    Massive Multiple-User Miltiple-Input Multiple-Output (MU-MIMO) wireless communication systems incorporate promising advanced strong technologies for upcoming 5G communications. To obtain some of the high spectrum and energy e ciencies bonuses brought by MU-MIMO systems, the ability to obtain Channel State information, especially on the receiver side (CSI), is important. To minimize...
    Resource Type:
    Masters Thesis
    Full Text:
    : Mario E. Magaña Massive Multiple-User Miltiple-Input Multiple-Output (MU-MIMO) wireless communi

  • Multi-User Massive MIMO Channel Estimation Based on Kalman Filters

    Creator:
    Yao, Zhaoda
    Abstract:
    In wireless communication, channel state information (CSI) is essential for data detection. Fast fading coefficients estimation is important in order to acquire accurate CSI. Kalman filters (KF) are widely used for real time parameter estimation and can be used to estimate the fast fading coefficients of a mobile communication channel....
    Resource Type:
    Masters Thesis
    Full Text:
    Mario E. Magaña In wireless communication, channel state information (CSI) is essential for data

  • Channel Estimation in TDD Massive MIMO Systems with Subsampled Data at BS

    Creator:
    Tian, Yichuan
    Abstract:
    Massive MIMO is a promising technique for future 5G communications due to its high spectrum and energy efficiency. To realize its potential performance gain, accurate channel state information at transmitter side (CSIT) is essential. Frequency division duplex (FDD) is widely employed by the most cellular systems today. However, it requires...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Mario E. Magaña Massive MIMO is a promising technique for future 5G communications due to

  • Grid Voltage Frequency Estimation Using an Adaptive Complex Master-Slave Unscented Kalman Filter

    Creator:
    Muñoz Constantine, Juan Pablo
    Abstract:
    Due to the popularity of electronically controlled loads and the widespread use of alternative energy sources such as wind turbines and solar cells, the power quality at the distribution level must be carefully monitored. One of the many different means to monitor power quality is through frequency measurements. Nonlinearities cause...
    Resource Type:
    Masters Thesis
    Full Text:
    approved: ______________________________________________________ Mario E. Magaña Due to the

  • Compensation method of the excess loop delay in continuous-time delta-sigma ADCs based on model matching approach

    Creator:
    Guo, Jia
    Abstract:
    Continues-Time (CT) Delta-Sigma (ΔΣ) Analog-to-Digital Converters (ADCs) have one important constrain, namely the excess loop delay. Most previous excess lop delay compensation methods need to know the exact value of the excess loop delay in advance. However, the value of the excess loop delay is a uniformly distribution random variable....
    Resource Type:
    Masters Thesis
    Full Text:
    : Mario E. Magaña

  • Adaptive broadband wireless interference mitigation architecture applying higher order statistics algorithm for computer platform

    Creator:
    Wang, Qiwei
    Abstract:
    The broadband wireless interference in a computer platform is resulted by multiple electro-magnetic emission sources. This non-Gaussian interference is proved to be double-sided K-distributed in previous research. With the limitation of transmission power and dimension of the device, interference mitigation is an efficient way to improve received signal bit error...
    Resource Type:
    Masters Thesis
    Full Text:
    : _____________________________________________________ Mario E. Magaña The broadband wireless interference in a computer platform is resulted by

  • A frequency-domain approach to simulating wave energy converter hydrodynamics

    Creator:
    Simmons, Asher
    Abstract:
    Wave energy converter (WEC) devices are complicated systems containing hydrodynamic, mechanical, and electrical elements. WEC design efforts are primarily focused in the time-domain, using frequency-based energy analyses and numerical problem solving approaches that are staples in hydrodynamic design efforts to form the basic information set used in these time-domain development...
    Resource Type:
    Masters Thesis
    Full Text:
    Professor Magaña and Professor Brekken for their excellent academic support; Dr. Margaret Simmons and Mr

  • Optimal communications system design for array-based electric generation

    Creator:
    Orozco, Ricardo
    Abstract:
    The world's demand for energy is an ongoing challenge, which has yet to be overcome. The efforts to find clean energy alternatives to fossil fuels have been hampered by the lack of investment in technology and research. Among these clean energy alternatives are ocean waves and wind. Wind power is...
    Resource Type:
    Masters Thesis
    Full Text:
    : ______________________________________________________ Mario Edgardo Magaña The world’s demand for energy is an ongoing challenge, which has

  • Variable sampling compensation of networked control systems with delays using neural networks

    Creator:
    Lopez-Echevarria, Daniel
    Abstract:
    In networked control systems (NCS) information or packets usually flow from a sensor or a set of sensors to a remotely located controller. Then the controller processes the received information and sends a series of control commands to the actuators through a communication network which could be either wireless or...
    Resource Type:
    Dissertation
    Full Text:
    Networks. Abstract approved: Mario E. Magaña In networked control systems (NCS) information or packets

  • Immune radio architecture for platform interference

    Creator:
    Alban, Eduardo
    Abstract:
    The decrease of switching times accompanied by the corresponding increase of clock speeds and data rates, contributes to improve the overall system computational performance. At the same time, they also affect wireless communications due to an increment in the emissions of electromagnetic radiation on the radio bands. In this dissertation...
    Resource Type:
    Dissertation
    Full Text:
    Interference Abstract approved: Mario E. Magaña The decrease of switching times accompanied by the

  • Partial network coding with cooperation : a study over multi-hop communications in wireless networks

    Creator:
    Poocharoen, Panupat
    Abstract:
    The imperfections of the propagation channel due to channel fading and the self-generated noise from the RF front-end of the receiver cause errors in the received signal in electronic communication systems. When network coding is applied, more errors occur because of error propagation due to the inexact decoding process. In...
    Resource Type:
    Dissertation
    Full Text:
    : _____________________________________________________________________ Mario E. Magaña The imperfections of the propagation channel due to channel fading and

  • Modelling of an Array of Floating Oscillating Water Column Wave Energy Converters with Full Hydrodynamic Coupling and Nonlinear Power Take Off Dynamics

    Creator:
    Gaebele, Daniel T.
    Abstract:
    Wave energy is one of the most promising renewable energy sources. Thus, research in this field has increased substantially over the last decade. However, significant costs associated with development and maintenance have so far impeded the implementation of commercially viable projects. Furthermore, the hydrodynamic interactions between water and prototypes meant...
    Resource Type:
    Masters Thesis
    Full Text:
    Science in Technische Kybernetik Examiner Prof. Dr.-Ing. Oliver Sawodny Supervisor Prof. Dr.-Ing. Mario

  • A Study of Oscillating Water Column Wave Energy Converters Array Configurations Based on Simulation

    Creator:
    Ding, Siyuan
    Abstract:
    Wave energy is a potentially important renewable clean source of energy that can help solve the energy demand throughout the world. A great deal of research has been conducted in the last few decades and it is now reaching the point of full implementation. In order to compete with other...
    Resource Type:
    Capstone Project
    Full Text:
    . ACKNOWLEDGEMENTS I am greatly indebted to my major advisor Prof. Magaña who accepted my application, helped