Understanding ultra-wide-band (UWB) propagation channels is a prerequisite for UWB
system design as well as communication-theoretic and information-theoretic investigations …

Applied for the first time to mobile radio propagation modeling at the beginning of the
nineties, ray tracing is now living a second youth. It is probably the best model to assist in the …

This paper provides an overview of the state-of-the-art radio propagation and channel
models for wireless multiple-input multiple-output (MIMO) systems. We distinguish between …

The theme of this thesis is the estimation of model parameters of a radio channel snapshot.
The main focus was the development of a general data model for the measured radio …

The results of a measurement campaign aimed at determining the far-field diffuse scattering
pattern of typical building walls are shown in the paper. Such results are then used to …

Channel simulators capitalizing on the ray-tracing (RT) principle are widely used in wireless
communications for generating realistic channel data. By combining the RT algorithm for the …

The use of large-size antenna arrays to implement pencil-beam forming techniques is
becoming a key asset to cope with the very high throughput density requirements and high …

In recent years, terahertz (THz) systems have become an increasingly popular area of
research thanks to their unique properties such as extremely high data rates towards Tb/s …

The use of massive multiple-input multiple-output (MIMO) systems is becoming
progressively feasible, as well as progressively important, as the carrier frequency …

The millimeter wave (mmWave) band will provide multi-gigabits-per-second connectivity in
the radio access of future wireless systems. The high propagation loss in this portion of the …