TITLE:
Wideband Modeling of Land-Mobile-Satellite Channel in Built-Up Environment
AUTHORS:
Anwar Jarndal, Mohammed S. Al Salameh, Anwar Alsaqaf, Yousef Hulba
KEYWORDS:
Radio Channel Modeling; Electromagnetic Wave Propagation; Satellite Mobile Communication; Ray Tracing; Uniform Theory of Diffraction
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.4 No.3,
March
28,
2012
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.