Wi-Sense: A passive human activity recognition system using Wi-Fi and convolutional neural network and its integration in health information systems

M Muaaz, A Chelli, MW Gerdes, M Pätzold - Annals of …, 2022 - Springer
A human activity recognition (HAR) system acts as the backbone of many human-centric
applications, such as active assisted living and in-home monitoring for elderly and physically …

WiWeHAR: Multimodal human activity recognition using Wi-Fi and wearable sensing modalities

M Muaaz, A Chelli, AA Abdelgawwad… - IEEE …, 2020 - ieeexplore.ieee.org
Robust and accurate human activity recognition (HAR) systems are essential to many
human-centric services within active assisted living and healthcare facilities. Traditional …

Human activity signatures captured under different directions using SISO and MIMO radar systems

S Waqar, M Muaaz, M Pätzold - Applied Sciences, 2022 - mdpi.com
In this paper, we highlight and resolve the shortcomings of single-input single-output (SISO)
millimeter wave (mm-Wave) radar systems for human activity recognition (HAR). A 2× 2 …

Interchannel interference and mitigation in distributed MIMO RF sensing

S Waqar, M Pätzold - Sensors, 2021 - mdpi.com
In this paper, we analyze and mitigate the cross-channel interference, which is found in
multiple-input multiple-output (MIMO) radio frequency (RF) sensing systems. For a millimeter …

A trajectory-driven 3D non-stationary mm-wave MIMO channel model for a single moving point scatterer

N Avazov, R Hicheri, M Muaaz, F Sanfilippo… - IEEE …, 2021 - ieeexplore.ieee.org
This paper proposes a new non-stationary three-dimensional (3D) channel model for a
physical millimeter wave (mm-Wave) multiple-input multiple-output (MIMO) channel. This …

A trajectory-driven 3D channel model for human activity recognition

A Abdelgawwad, AC Mallofré, M Pätzold - IEEE access, 2021 - ieeexplore.ieee.org
This paper concerns the design, analysis, and simulation of a 3D non-stationary channel
model fed with inertial measurement unit (IMU) data. The work in this paper provides a …

A Lower Boundary on the Length of the Coherence Block in Vehicular Communications Channels

RP Torres, JR Pérez - IEEE Open Journal of Vehicular …, 2024 - ieeexplore.ieee.org
This paper presents a novel lower boundary for the coherence block (ChB) length in time-
variant wireless channels. A rigorous estimation of the ChB length is important for the proper …

The transfer function of non-stationary indoor channels and its relationship to system functions of LFMCW radars

R Hicheri, N Avazov, M Muaaz… - 2021 IEEE 22nd …, 2021 - ieeexplore.ieee.org
This paper studies the relationship between the time-variant (TV) channel transfer function
(CTF) of non-stationary indoor channels and the system functions of linear frequency …

A trajectory-driven SIMO mm-Wave channel model for a moving point scatterer

N Avazov, R Hicheri, M Pätzold - 2021 15th European …, 2021 - ieeexplore.ieee.org
In this paper, we propose a trajectory-based three-dimensional (3D) non-stationary channel
model for a millimeter wave (mm-Wave) single-input multiple-output (SIMO) system. The …

A trajectory-driven SISO mm-wave channel model for a human activity recognition

N Avazov, R Hicheri, M Pätzold - 2021 17th International …, 2021 - ieeexplore.ieee.org
In this paper, we propose a trajectory-driven three-dimensional (3D) non-stationary channel
model for millimeter wave (mm-Wave) single-input single-output (SISO) systems. The …