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Title |
Human Body Shadowing at Millimetric Waves |
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Author |
Jraifi Abdelouahed, El Hassan Saidi |
| Citation |
Vol. 7 No. 10 pp. 178-182 |
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Abstract |
In order to model propagation of wave radio and develop a real mobile communication system, a good knowledge of environment propagation is crucial. Usually, the temporal variations of signal amplitude between Transmitter (Tx) and receiver (Rx) is neglected in modeling the radio propagation. Referring to Hashemi [1], the effects of temporal variations in indoor environment caused in the most part by human body shadowing cannot be neglected. In this paper we demonstrate the effects of temporal variations due to the movement of persons between Tx and Rx. The method used to predict the wave propagation in indoor environment is a deterministic technique called Ray Tracing, mainly used for simulating static environment, and the human body is modeled as a parallelepiped form full of salty water. Finally, we have proposed an algorithm to mitigate the unavailability of the channel when the time of obstruction caused by human body becomes significant. |
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Keywords |
Radio propagation channel, Indoor propagation, Human body shadowing |
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