8 papers
Stochastic 3-D Foliage Modeling at 80 GHz: Experimental Validation and Ray-Tracing Simulations
Jiri Blumenstein, Radek Zavorka, Josef Vychodil +10
A stochastic modeling methodology for 3-D foliage is presented, aimed at enhancing ray-tracing simulations. The model supports adjustable stochastic geometry, density, and shape to…
Angularly-Resolved 3D Foliage Modeling and Measurements at 60 and 80 GHz: From Stochastic Geometry to Deterministic Channel Characterization
Jiri Blumenstein, Radek Zavorka, Josef Vychodil +10
In this paper, we show a stochastic approach to generate a 3D model of a foliage, which is then used for deterministic ray-tracing channel modeling. This approach is verified by a…
Vehicle-to-Vehicle Millimeter-Wave Channel Characterization at 60 and 80 GHz
Radek Zavorka, Tomas Mikulasek, Josef Vychodil +9
This paper presents results from a vehicle-to-vehicle channel measurement campaign conducted in the millimeter-wave (MMW) frequency bands at center frequencies of 60GHz and 80GHz,…
Adaptive RIS Control for Mobile mmWave NLoS Communication Using Single-Bit Feedback
Hamed Radpour, Markus Hofer, Thomas Zemen
Reconfigurable intelligent surfaces (RISs) are emerging as key enablers of reliable industrial automation in the millimeter-wave (mmWave) band, particularly in environments with fr…
RIS Nearfield Position and Velocity Estimation Using a Validated Propagation Model
Thomas Zemen, Musa Furkan Keskin, Moustafa Rahal +5
We investigate reconfigurable intelligent surfaces (RISs) for the task of position and velocity estimation in non-LOS (NLOS) indoor scenarios, using a snapshot based multi-step est…
Time-Varying Rician K-factor in Measured Vehicular Channels at cmWave and mmWave Bands
Faruk Pasic, Markus Hofer, Thomas Zemen +2
Future vehicular communication systems will integrate millimeter wave (mmWave) technology to enhance data transmission rates. To investigate the propagation effects and small-scale…