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Filtering by: Creator Johnson, K. B. Remove constraint Creator: Johnson, K. B. Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • Rapid hardware implementations of classical modular multiplication

    Creator:
    Johnson, Scott Andrew
    Abstract:
    Modular multiplication is a mathematical operation fundamental to the RSA cryptosystern, a public-key cryptosystem with many applications in privacy, security, and authenticity. However, cryptosecurity requires that the numbers involved be extremely large, typically ranging from 512-1024 bits in length. Calculations on numbers of this magnitude are cumbersome and lengthy; this...
    Resource Type:
    Masters Thesis
    Full Text:
    numbers. Let B(k) be the kth bit in B. The well-known bit-serial, word-parallel radix 2 algorithm to

  • Dynamic and Dual Streaming Methods for H.264 Video and Parallel Performance Modeling

    Creator:
    Johnson, Taylor N.
    Abstract:
    Traditional approaches to streaming H.264 video over a network typically rely on a single method of transport (i.e., reliable or unreliable) and/or use static values for parameters that can have a significant negative impact on the perceptual quality of the received video. This dissertation presents a dynamic method for wireless...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Taylor N. Johnson for the

  • Risk and Uncertainty Quantification Methods in Electrical Power Systems

    Creator:
    Johnson, Brandon S.
    Abstract:
    Load flow studies are one of the most essential engineering applications for grid operators because they provide a clear picture of the operating conditions of the power system. Traditionally, the load flow problem is assumed to be deterministic; that is, the system variables contain no randomness. Unfortunately, this assumption is...
    Resource Type:
    Dissertation
    Full Text:
    as Fe = Aη̈ +Bη̇ + kη (1.7) where the terms A and B are frequency-dependent, device specific

  • A direct-drive wave energy converter with contactless force transmission system

    Creator:
    Agamloh, Emmanuel B.
    Abstract:
    Commonly proposed ocean wave energy converters (OWEC) use inefficient and maintenance demanding intermediate hydraulic and pneumatic systems. We propose a novel rotary direct-drive OWEC that eliminates these intermediate stages. The new device employs a contactless force transmission system (CFTS) comprising a “piston” and a “cylinder” and a ball screw to...
    Resource Type:
    Dissertation
    Full Text:
    10 20 30 40 50 60 70 1 2 3 4 5 6 7 8 9 10 11 12 Months W av e P o w er , k W /m (b

  • Target-based coverage extension of 802.11 MANETs via constrained UAV mobility

    Creator:
    Johnson, Taylor N.
    Abstract:
    MANETs are known to be useful in situations where mobile nodes need to communicate and coordinate in dynamic environments with no access to fixed network infrastructure. However, connectivity problems can occur when sub-groups within a MANET move out of communication range from one another. The increasingly prolific use of UAVs...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Taylor N. Johnson for the

  • RF and Millimeter-wave Techniques to Improve Scalability and Efficiency of Digital Beamforming Arrays

    Creator:
    Johnson, Manoj
    Abstract:
    Spectrum overcrowding, ever increasing demand for high data rate and increased mobility requirements are three major challenges 5G-technology is trying to address. In this thesis I start with a RF front-end technique that deals with blocker interference arising from spectrum overcrowding both across frequency bands and within the same frequency...
    Resource Type:
    Dissertation
    Full Text:
    AN ABSTRACT OF THE DISSERTATION OF Manoj Johnson for the

  • An eraseable MOS read-only memory

    Creator:
    Johnson, Norman Leland
    Abstract:
    A non-volatile electrically alterable read-only memory using an MOS field effect transistor with a threshold voltage which depended upon the position of ionic charges for its memory was fabricated. The conventional silicon dioxide layer was replaced by a composite layer consisting of thermal silicon dioxide, electron beam evaporated aluminum oxide,...
    Resource Type:
    Dissertation
    Full Text:
    THESIS OF NORMAN LELAND JOHNSON for the DOCTOR OF PHILOSOPHY (Name) (Degree) Electrical and in Computer

  • On the domain generalizability of RF fingerprints through multifractal dimension representation

    Creator:
    Johnson, Benjamin
    Abstract:
    RF data-driven device fingerprinting through the use of deep learning has recently surfaced as a possible method for secure device identification and authentication. Traditional approaches are commonly susceptible to the domain adaptation problem where a model trained on data from one domain performs badly when tested on data from a...
    Resource Type:
    Masters Thesis
    Full Text:
    . Gaskin, B. Hamdaoui, and W.-K. Wong, “Tweak: Towards portable deep learning models for domain-agnostic

  • Linearizing techniques for voltage controlled oscillator based analog to digital converters

    Creator:
    Rao, Sachin B.
    Abstract:
    Voltage controlled oscillator (VCO) based ADC is an important class of time-domain ADC that has gained widespread acceptance due to their several desirable properties. VCO-based ADCs behave like an open-loop continuous time ΔΣ modulator and achieve excellent resolution by first order noise shaping the quantization error. However, the SNDR of...
    Resource Type:
    Dissertation
    Full Text:
    Analog to Digital Converters 1 AN ABSTRACT OF THE DISSERTATION OF Sachin B Rao for the degree of

  • Design techniques for high efficiency high current LED drivers

    Creator:
    Rao, Sachin B.
    Abstract:
    Solid-state based lighting offers a number of advantages such as long life, high efficiency and compactness compared to a conventional halogen tube based lighting. Due to these advantages they are being increasingly used in a variety of lighting applications including portable devices, home, and automotive lighting. Consequently, there has been...
    Resource Type:
    Masters Thesis
    Full Text:
    1 AN ABSTRACT OF THE THESIS OF Sachin B Rao for the degree of