Browsing Publikasjoner fra CRIStin by Author "Abdelgawwad, Ahmed"
Now showing items 1-11 of 11
-
A 3D Non-Stationary Cluster Channel Model for Human Activity Recognition
Abdelgawwad, Ahmed; Pätzold, Matthias Uwe (Journal article; Peer reviewed, 2019)This paper proposes a three-dimensional (3D) non- stationary fixed-to-fixed indoor channel simulator model for human activity recognition. The channel model enables the formulation of temporal variations of the received ... -
A Framework for Activity Monitoring and Fall Detection Based on the Characteristics of Indoor Channels
Abdelgawwad, Ahmed; Pätzold, Matthias Uwe (Journal article; Peer reviewed, 2018)This paper concerns the Doppler power spectrum of three-dimensional non-stationary indoor fixed-to- fixed channels with moving people. In this paper, we model each moving person as a moving scatterer with time-variant (TV) ... -
Doppler Power Characteristics Obtained from Calibrated Channel State Information for Human Activity Recognition
Abdelgawwad, Ahmed; Catala, Andreu; Pätzold, Matthias Uwe (Journal article; Peer reviewed, 2020) -
The Influence of Human Walking Activities on the Doppler Characteristics of Non-stationary Indoor Channel Models
Muaaz, Muhammad; Abdelgawwad, Ahmed; Pätzold, Matthias Uwe (Chapter; Peer reviewed, 2019)This paper analyzes the time-variant (TV) Doppler power spectral density of a 3D non-stationary fixed-to-fixed indoor channel simulator after feeding it with realistic trajectories of a walking person. The trajectories of ... -
Modelling, Analysis, and Simulation of the Micro-Doppler Effect in Wideband Indoor Channels with Confirmation Through Pendulum Experiments
Abdelgawwad, Ahmed; Borhani, Alireza; Pätzold, Matthias Uwe (Journal article; Peer reviewed, 2020) -
A non-stationary relay-based 3D MIMO channel model with time-variant path gains for human activity recognition in indoor environments
Hicheri, Rym; Abdelgawwad, Ahmed; Pätzold, Matthias Uwe (Peer reviewed; Journal article, 2021)Extensive research showed that the physiological response of human tissue to exposure to low-frequency electromagnetic fields is the induction of an electric current in the body segments. As a result, each segment of the ... -
On the Influence of Walking People on the Doppler Spectral Characteristics of Indoor Channels
Abdelgawwad, Ahmed; Pätzold, Matthias Uwe (Journal article; Peer reviewed, 2017)When modelling mobile radio channels with moving scatterers, it is generally assumed that the angles of departure (AODs), angles of arrival (AOAs), and the speed of the scatterers are time-invariant. However, this assumption ... -
On the influence of walking people on the Doppler spectral characteristics of indoor channels
Abdelgawwad, Ahmed; Pätzold, Matthias Uwe (Journal article; Peer reviewed, 2017) -
Synthetic Micro-Doppler Signatures of Non-Stationary Channels for the Design of Human Activity Recognition Systems
Abdelgawwad, Ahmed (Doctoral Dissertations at the University of Agder; no. 333, Doctoral thesis, 2021)The main aim of this dissertation is to generate synthetic micro-Doppler signatures and TV-MDSs to train the HACs. This is achieved by developing non-stationary fixed-tofixed (F2F) indoor channel models. Such models provide ... -
A Trajectory-Driven 3D Channel Model for Human Activity Recognition
Abdelgawwad, Ahmed; Catala, Andreu; Pätzold, Matthias Uwe (Peer reviewed; Journal article, 2021) -
WiWeHAR: Multimodal Human Activity Recognition Using Wi-Fi and Wearable Sensing Modalities
Muaaz, Muhammad; Chelli, Ali; Abdelgawwad, Ahmed; Catala Mallofré, Andreu; Pätzold, Matthias Uwe (Peer reviewed; Journal article, 2020)