81 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Polish Academy of SciencesPL26 papers
- University of WarsawPL21 papers
- Brno University of TechnologyCZ14 papers
- Institute of MathematicsPL12 papers
- Institute of PhysicsPL12 papers
- National Institute of Technology DurgapurIN12 papers
- Warsaw University of TechnologyPL11 papers
- Institute of High Pressure PhysicsPL8 papers
- Jagiellonian UniversityPL7 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL6 papers
- University of Silesia in KatowicePL6 papers
- Częstochowa University of TechnologyPL5 papers
16 papers · 1 filter
How Temporal Dispersion of Radio Channels Depends on Signal Bandwidth
Jarosław Wojtuń, Tomasz Grasza, Cezary Ziółkowski +7
The degree of temporal dispersion of a radio channel is the basis for assessing its transmission capabilities. This paper addresses the practical issue of measuring the temporal pa…
Framework for Indoor Wireless Propagation Modeling Through Wireless Insite
Arao Zau Macaia, Niraj Narayan, Rajeev Shukla +8
Multipaths, reflections, diffractions, and material interactions complicate indoor wireless propagation modelling. More than 80% of wireless data is consumed indoors; hence, planni…
LSTM-Based Power Delay Profile Predictions for Intra-Bus Wireless Propagation
Rajeev Shukla, Atharva Verma, Aniruddha Chandra +8
Longlshort-term memory (LSTM) is a deep learning model that can capture long-term dependencies of wireless channel models and is highly adaptable to short-term changes in a wireles…
A Deep Learning Approach to Multipath Component Detection in Power Delay Profiles
Ondrej Zeleny, Radek Zavorka, Ales Prokes +5
Power Delay Profile (PDP) plays a crucial role in wireless communications, providing information on multipath propagation and signal strength variations over time. Accurate detecti…
Microdiversity and Vegetation Influence on Forward Scattering at 60 GHz and 80 GHz
Radek Zavorka, Ondrej Zeleny, Jiri Blumenstein +9
Understanding the impact of vegetation and small-scale antenna movements on signal propagation is important for the design and optimization of high-frequency wireless communication…
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…
Comparison of 60 GHz and 80 GHz Vehicle-to-Vehicle Channels Using Delay and Doppler Characteristics
Ales Prokes, Tomas Mikulasek, Josef Vychodil +6
The aim of this paper is to provide a comparison of channel characteristics for vehicle-to-vehicle (V2V) communication at 60 GHz and 80 GHz frequency bands in a high-mobility scena…
Millimeter Wave Path Loss for Diverse Antenna Patterns in Outdoor Environment
Jaroslaw Wojtun, Cezary Ziolkowski, Jan M. Kelner +9
Empirical path loss models are defined for a specific antenna system used during measurements and characterized by a particular radiation pattern and main lobe beam width. In this…
Channel impulse response peak clustering using neural networks
Petr Horky, Ales Prokes, Radek Zavorka +4
This paper introduces an approach to process channel sounder data acquired from Channel Impulse Response (CIR) of 60GHz and 80GHz channel sounder systems, through the integration o…
Comparative analysis of clustering methods for power delay profile in MMW bands and in-vehicle scenarios
Radek Zavorka, Ales Prokes, Josef Vychodil +6
The spatial statistics of radio wave propagation in specific environments and scenarios, as well as being able to recognize important signal components, are prerequisites for depen…
Channel modeling for 60 GHz fixed mmWave O2I and O2O uplink with angular misalignment
Nitisha Singh, Sahaj K. Jha, Aniruddha Chandra +8
In this letter, we examine the effect of misalignment angle on cluster-based power delay profile (PDP) modeling for a 60 GHz millimeter-wave uplink. The analysis uses real-world da…
Power angular spectrum versus Doppler spectrum -- Measurements and analysis
Jan M. Kelner, Cezary Ziolkowski, Michal Kryk +9
In this paper, we present an empirical verification of the method of determining the Doppler spectrum (DS) from the power angular spectrum (PAS). Measurements were made for the fre…
Spectral efficiency for mmWave downlink with beam misalignment in urban macro scenario
Jaroslaw Wojtun, Cezary Ziolkowski, Jan M. Kelner +7
In this paper, we analyze the spectral efficiency for millimeter wave downlink with beam misalignment in urban macro scenario. For this purpose, we use a new approach based on the…
Cooperative system of emission source localization based on SDF
Jan M. Kelner
Efficient and precise location of emission sources in an urbanized environment is very important in electronic warfare. Therefore, unmanned aerial vehicles (UAVs) are increasingly…
Modeling power angle spectrum and antenna pattern directions in multipath propagation environment
Jan M. Kelner, Cezary Ziolkowski
Most propagation models do not consider the influence of antenna patterns on the parameters and characteristics of received signals. This assumption is equivalent to the use of iso…