Characterization of 60 GHz shadowing by human bodies and simple phantoms

Abstract

Abstract. The 60 GHz band is very promising for high data rate (>1 Gb/s) wireless systems operating at short ranges. However, due to the short wavelengths in this frequency band, the shadowing effects cuased by human bodies and furniture are severe and need to be modeled properly. In this paper, we present an experimental, measurement-based characterization of the reflection and shadowing effects in the 60 GHz band caused by human bodies and various phantoms, in order to find simple phantoms suitable for use in human shadowing measurements. It is shown that a waterfilled human phantom serves as a good choice for this purpose.

Propagation Channel Models for Next-Generation Wireless Communications Systems

“…From the above, it follows that (i) outdoor-to-indoor penetration is very small; (ii) outdoor propagation is mostly de- From [77].…”

“…A further very important effect for 60 GHz systems is shadowing by human bodies. Shadowing losses are on the order of 10-20 dB, where variations between different shadowing persons can be significant [77]. Figure 10 shows the shadowing loss as a probe antenna is moved from a LOS position to a placement behind the shadowing body.…”

E-band millimeter wave indoor channel characterization

“…Several researches [6]- [14] have thus addressed the radio channel characteristics in the mmW frequencies. The mmW multipaths clustering for double directional channel [11], the spatial and temporal characteristics [7] and the shadowing by human bodies [10] have been investigated around 60 GHz in indoor environments. Most of the studies in channels characterization and modelling at mmW frequencies have been conducted in the 60 GHz band, being a worldwide license free band.…”

Empirical Effects of Dynamic Human-Body Blockage in 60 GHz Communications

“…In this article, we begin with an overview of blockage modeling techniques which view blockage from a Radio Frequency (RF) theory perspective [3], and those which seek to develop statistical models and methodologies for simulations involving mmWave blockage [4]. These statistical models often rely on ray-tracing based studies instead of measured data due to the difficulty of performing these measurements.…”