A fast computation and accurate analytical model for off-body propagation is derived in this paper. The paper discusses the off-body model propagation from an external source to a receiver located on the body. The model is developed for normal incident plane wave by describing the human body with a circular cylinder. We show that the total received electric field around the human body can be written as a creeping wave in the shadow region and as a Geometrical Optics result for the lit region. It is also shown that at 60 GHz, the shadow boundary width is negligible. The model shows perfect agreement with the experimental results conducted on a perfectly conducting cylinder. Measurements of the creeping wave path gain have been also conducted on a real body to assess the validity of the cylinder assumption. The results have shown a path gain of about 5 dB/cm for TM case and 3 dB/cm for TE case. The standard deviation between the measurements and the cylindrical model is about 3.5 dB for both TM and TE cases.

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International audienceA numerical model of the fading of a receiver located near the user body at 60 GHz in an indoor environment is presented. The model is based on the indoor channel model IEEE 802.11ad. The results are presented for a receiver located in a zone from 5 to 30 cm away from the body. With the shadowing depending on the region (front or back) with respect to the base station, the mean attenuation of the channel over the bandwidth is analyzed and model thanks to a Two-Wave Diffuse Power distribution model