Millimeter wave and UWB propagation for high throughput indoor communications

Suiyan Geng

    Research output: ThesisDoctoral ThesisCollection of Articles

    Abstract

    Millimeter-wave systems at 60 GHz and ultra-wideband (UWB) systems in the microwave range of 3-10 GHz have been received with great interest for their high data rate wireless communications. In design, test and optimization of future wireless systems, channel models featuring the relevant characteristics of radiowave propagation are required. Furthermore, detailed understanding of the propagation channel and its interaction with system, creates insights into possible solutions. In this work, both theoretical (ray-tracing) and statistical models of the 60 GHz and UWB channels are studied. Propagation characteristics of the 60 GHz and UWB indoor channels are also compared for providing useful information on design of radio systems. More specifically, based on real-time channel sounder measurements performed in the 60 GHz band, propagation mechanisms including person blocking effect are concluded. Ray-based models in LOS and NLOS indoor corridors are proposed. Multipath power distributions in the 60 GHz band are studied first time. Moreover, propagation interdependencies of path loss, shadowing, number of paths, Rice K-factor and cross polarization discrimination (XPD) with channel delay spread are established. In the UWB propagation channel, frequency- and bandwidth- dependencies are investigated. Multipath and clustering propagation characteristics are analyzed. A new cluster model is proposed and compared with the classical Saleh-Valenzuela model for gaining more understanding of channel general properties. Finally, the performance and capacities of the 60 GHz UWB and MIMO (multiple-in and multiple-out) systems are analyzed for providing reliable parameters for system design and useful information for standardization groups.
    Translated title of the contributionMillimeter wave and UWB propagation for high throughput indoor communications
    Original languageEnglish
    QualificationDoctor's degree
    Awarding Institution
    • Aalto University
    Supervisors/Advisors
    • Vainikainen, Pertti, Supervising Professor
    • Vainikainen, Pertti, Thesis Advisor
    Publisher
    Print ISBNs978-952-60-4317-3
    Electronic ISBNs978-952-60-4318-0
    Publication statusPublished - 2011
    MoE publication typeG5 Doctoral dissertation (article)

    Keywords

    • millimeter waves
    • ultra-wideband (UWB)
    • propagation
    • ray-based models
    • statistical models
    • multipath
    • clustering
    • multiple-in and multiple-out (MIMO)

    Fingerprint

    Dive into the research topics of 'Millimeter wave and UWB propagation for high throughput indoor communications'. Together they form a unique fingerprint.

    Cite this