5 papers
Physically Consistent Channel Modeling and Signal Processing for Reconfigurable Wireless Systems
Ahmad Dkhan, Simon Tarboush, Hadi Sarieddeen +3
Reconfigurable antennas are increasingly integrated into multi-antenna communication systems to exploit large apertures while reducing the hardware complexity, energy consumption,…
Hierarchical THz Near-Field Localization with Subarray Processing and Covariance Correction
Ahmad Dkhan, Yazan Dayoub, Jana El Haj +1
Terahertz (THz)-band near-field (NF) localization offers high spatial resolution due to short wavelengths and distance-dependent wavefront curvature in NF multi-antenna systems. Ho…
On Near-Far-Field Boundaries in Wireless Systems
Alexander Stutz-Tirri, Ahmad Dkhan, Hadi Sarieddeen +1
Near-field (NF) multi-antenna wireless communication and sensing have attracted growing research interest in recent years. A core question in this area is how to determine whether…
RIS-Aided Near-Field Channel Estimation under Mutual Coupling and Spatial Correlation
Ahmad Dkhan, Simon Tarboush, Hadi Sarieddeen +1
The integration of reconfigurable intelligent surfaces (RIS) with extremely large multiple-input multiple-output (MIMO) arrays at the base station has emerged as a key enabler for…
THz-Band Near-Field RIS Channel Modeling for Linear Channel Estimation
Ahmad Dkhan, Simon Tarboush, Hadi Sarieddeen +2
Reconfigurable intelligent surface (RIS)-aided terahertz (THz)-band communications are promising enablers for future wireless networks. However, array densification at high frequen…