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Wideband Modeling of Land-Mobile-Satellite Channel in Built-Up Environment

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Author(s): Anwar Jarndal | Mohammed S. Al Salameh | Anwar Alsaqaf | Yousef Hulba

Journal: Journal of Electromagnetic Analysis and Applications
ISSN 1942-0730

Volume: 04;
Issue: 03;
Start page: 101;
Date: 2012;
Original page

Keywords: Radio Channel Modeling | Electromagnetic Wave Propagation | Satellite Mobile Communication | Ray Tracing | Uniform Theory of Diffraction

ABSTRACT
This paper presents a propagation model for land-mobile-satellite (LMS) wideband radio channel in built-up environment. The model characterizes the behavior of the radio channel, under shadowing and multipath effects due to buildings, with variation of the elevation angle of the satellite. The wideband parameters (coherent bandwidth and time delay spreading) for LMS channel, in residential and urban environments, are computed. These parameters can be considered as a measure of the amount of ISI (inter-symbol interference) of the radio channel, which distorts the received signal and accordingly increases the bit error rate. The calculated values for these parameters using our model, show very good agreement with the corresponding measured ones, which accordingly shows the validity of the developed model for radio channel design in satellite mobile communication systems.
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