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Filtering by: Creator Liu, Huaping Remove constraint Creator: Liu, Huaping Degree Name Doctor of Philosophy (Ph.D.) Remove constraint Degree Name: Doctor of Philosophy (Ph.D.) Peer Reviewed No Remove constraint Peer Reviewed: No

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  • Efficient detection and scheduling for MIMO-OFDM systems

    Creator:
    Liu, Wei
    Abstract:
    Multiple-input multiple-output (MIMO) antennas can be exploited to provide high data rate using a limited bandwidth through multiplexing gain. MIMO combined with orthogonal frequency division multiplexing (OFDM) could potentially provide high data rate and high spectral efficiency in frequency-selective fading channels. MIMO-OFDM technology has been widely employed in modern communication...
    Resource Type:
    Dissertation
    Full Text:
    for MIMO-OFDM Systems Abstract approved: Huaping Liu Multiple-input multiple-output (MIMO

  • Position estimation in indoor localization with trilateration

    Creator:
    Su, Zhenqiang
    Abstract:
    Triangulateration uses geometric distance to estimate the location of user by employing techniques like received signal strength (RSS), time-of-arrival (TOA), time-difference-of-arrival (TDOA) and image processing. Radio frequency (RF) signal positioning using TOA or TDOA techniques generally requires timing synchronization of the anchors and/or the anchors and targets. If the desired...
    Resource Type:
    Dissertation
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    : Position Estimation in Indoor Localization with Trilateration Abstract approved: Huaping Liu Professor

  • A Novel CCRW Receiver with Variable Width Window for Mitigating Multipath and Ambiguity in GNSS Positioning

    Creator:
    Alhussein, Fahad
    Abstract:
    This work presents a novel CCRW receiver that utilizes a window of variable width, for e˙ectively mitigating multipath and ambiguity in both civil and military positioning applica-tions using Global Navigation Satellite Systems (GNSS). This CCRW receiver incorporates a single stroboscopic window, whose width is iteratively reduced until the e˙ect of...
    Resource Type:
    Dissertation
    Full Text:
    Positioning Abstract approved: Huaping Liu This work presents a novel CCRW receiver that utilizes a window

  • Advanced time-varying approaches for modeling the multipath channel in wireless network

    Creator:
    Aljerme, Abdelkader A.
    Abstract:
    This dissertation proposes the use of advanced time-varying approaches for modeling the dynamics of the multipath channel in wireless communication networks. These advanced time-varying approaches include linear Kalman innovation models in observable block companion form, and neural network-based models. The e˙ectiveness of these type of models is evaluated through three...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: Huaping Liu This dissertation proposes the use of advanced time-varying approaches for

  • Environment-adaptive RF Sensing with Transferable ANN Features

    Creator:
    Wang, Guangxin
    Abstract:
    Radio frequency (RF) sensing arises as a promising option for enabling the internet of things (IoT) applications that transform our life into a world of smart homes, smart cities, and smart industries. The innovation of IoT reveals the benefits of RF sensing across cost, pervasiveness, unobtrusiveness, and privacy. However, challenges...
    Resource Type:
    Dissertation
    Full Text:
    : Huaping Liu Radio frequency (RF) sensing arises as a promising option for enabling the internet of

  • Evolutionary Approach to Efficient Provisioning and Self-organization in Wireless Sensor Networks (WSN)

    Creator:
    Khanna, Rahul, 1966-
    Abstract:
    Advances in low-power digital integration and microelectro-mechanical systems (MEMS) have paved the way for micro-sensors. These sensors are equipped with data processing capabilities along with sensory circuits. Sensor data are processed on these individual sensors and transmitted to the target (sink). Lowcost integration and small sizes of these sensors have...
    Resource Type:
    Dissertation
    Full Text:
    -organization in Wireless Sensor Networks (WSN) Abstract approved: Huaping Liu Advances in low-power digital

  • Directional 60 GHz communication networks

    Creator:
    Yildirim, Ferhat (Ahmet Ferhat)
    Abstract:
    It is well known that multipath effects cause inter-symbol interference (ISI) for high-speed signaling and ultimately limit the achievable data rate at any frequency band. In this thesis, we study several different methods to tackle this issue and provide solutions for establishing efficient wireless links that can provide several Gbps...
    Resource Type:
    Dissertation
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    23, 2009. Title: Directional 60 GHz Communication Networks Abstract approved: Dr. Huaping Liu It

  • RF Front End Tuning Methods for Wireless Power Transfer Systems

    Creator:
    Keskin, Nurcan
    Abstract:
    Wireless power transfer (WPT) is a way to transfer power from one device to another without any wire or cable connections. Although the technology has been around for more than 100 years, it is gaining popularity in recent years due to the ever-increasing demand for faster and more frequent charging...
    Resource Type:
    Dissertation
    Full Text:
    sincere gratitude to my advisor Professor Huaping Liu for his continuous encouragement and support of my

  • Efficient multiuser cooperative relay communications employing layered modulations

    Creator:
    Whang, Roderick Jaehoon
    Abstract:
    Relay-assisted cooperative communications are promising solutions for error-performance improvement and cell coverage extension. In this thesis, we propose several efficient cooperative relay communication schemes. First, an efficient space-time coded cooperative relay communications scheme that employs linear precoding and transmission-pattern selection is proposed. This is built upon an existing block linear...
    Resource Type:
    Dissertation
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    approved: Huaping Liu Relay-assisted cooperative communications are promising solutions for error

  • An Anthology of Next-Generation WSNs and Transformative IoT Use-Cases

    Creator:
    Williams, Jennifer M.
    Abstract:
    The Internet of Things (IoT) paradigm brought an ever-increasing dependence on low-power devices to collect sensor data and transmit that information to the cloud, placing greater demand on connectivity and lifespan. In response, rapid worldwide innovation demonstrates the trade-offs in processing, communication, and energy consumption with diverse approaches to low-power...
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    Dissertation
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    ACKNOWLEDGEMENTS I would like to admirably acknowledge Prof. Huaping Liu for his devotion to science and education