Characterizing and Modelling of Indoor Radio Pr opagation Channel at ISM Band
Pages: 1 - 10
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Participants:
Abdulkareem S. Abdallah |
Yessar Ezzeldin |
Summary:
The investigation of the indoor electromagnetic propagation has been performed at
the unlicensed industrial, scientific, and medical (ISM) band, which has gained increased
attention recently due to high data rate communication systems developed to operate in it. The
effect of the incidence angle and materials thicknesses on the reflection coefficients for both
horizontal and vertical polarization has been studied. Two-dimensional ray-tracing model has
been suggested to simulate the influence of buildings electromagnetic properties on indoor
radio channel characteristics, such as ยท signal level, rms delay spread, and coherence
bandwidth. Results show that the influence of the permittivity is more important than the
influence of the order of reflection considered for the ray- tracing model. It is also shown that,
compared with power level, rms delay spread is more sensitive to the building dielectric
parameters. Maximum rms delay spread is dependent mainly on the reflectivity of the walls
which dependent on the dielectric parameters