Terahertz (0.1-10 THz) communications are envisioned as a key technology for sixth
generation (6G) wireless systems. The study of underlying THz wireless propagation …

The field of wireless communication networks has witnessed a dramatic change over the last
decade due to sophisticated technologies deployed to satisfy various demands peculiar to …

In this paper, a novel three-dimensional (3D) non-stationary geometry-based stochastic
model (GBSM) for the fifth generation (5G) and beyond 5G (B5G) systems is proposed. The …

In the 6G era, Space-Air-Ground Integrated Network (SAGIN) are anticipated to deliver
global coverage, necessitating support for a diverse array of emerging applications in high …

We propose a superimposed pilot (SP)-based channel estimation and data detection
framework for orthogonal time-frequency space (OTFS) systems, which superimposes low …

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 …

In this paper, we describe the results of a channel measurement and modeling campaign for
the vehicle-to-vehicle (V2V) channel in the 5-GHz band. We describe measurements and …

In this paper, the problem of pilot beam pattern design for channel estimation in massive
multiple-input multiple-output systems with a large number of transmit antennas at the base …

The high mobility, density and multi-path evident in modern wireless systems makes the
channel highly non-stationary. This causes temporal variation in the channel distribution that …

Vehicular communication channels are characterized by a nonstationary time-frequency-
selective fading process due to rapid changes in the environment. The nonstationary fading …