Spectral properties of signal fading and doppler spectra distribution in urban mobile communication links

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    In this work we continue the analysis of a probabilistic approach and the corresponding stochastic multi-parametric model of wave propagation in built-up areas with randomly distributed buildings. Here we concentrate on the spectral properties of signal strength spatial variations and on Doppler spread spectrum distribution of signal power. The analysis is based on a unified stochastic approach of radio wave propagation above the built-up terrain with applications to mobile communications. We analyze the signal power spectrum of spatial frequencies and the signal power distribution in the Doppler domain for moving vehicles, taking into account Doppler shift proportional to the vehicle antenna speed with respect to the base station. The comparison between the theoretical prediction and experimental data was motivated by the proposed stochastic model and by other existing statistical models to verify the signal power distribution in the Doppler domain for various urban environments and terminal heights with respect to building rooftops. New effects of terrain features on signal power spectrum distribution are obtained and examined through the comparison with existing models and experimental data.

    Original languageEnglish
    Pages (from-to)5150-5154
    Number of pages5
    JournalIEEE Vehicular Technology Conference
    Volume60
    Issue number7
    StatePublished - 1 Dec 2004
    Event2004 IEEE 60th Vehicular Technology Conference, VTC2004-Fall: Wireless Technologies for Global Security - Los Angeles, CA, United States
    Duration: 26 Sep 200429 Sep 2004

    Keywords

    • Antenna elevation compared to buildings' height
    • Doppler shif
    • Doppler spread spectrum distribution
    • Urban area

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Applied Mathematics

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