Comments on "Near-Body Shadowing Analysis at 60 GHz"

Abstract

In a recent paper, Mavridis et al. proposed a statistical diffraction model to characterize the channel near the human body (i.e., near-body zone) at 60 GHz in an indoor communication environment. Specifically, they demonstrated that the near-body zone has been separated into the front and back regions, and both regions can be theoretically modeled by a two-wave with diffuse power (TWDP) distribution, the statistical properties of which are described by two parameters K and Δ defined as K=V21+V222σ2 and Δ=2V1V2V21+V22, which represent the ratio of the total specular power to the diffused power and the relative power level of the two specular components, respectively, where V1 and V2 denote the magnitudes of the two specular components, and 2σ2 represents the average power of the diffused components.