9 papers
Study of Multiuser Scheduling Based on User Satisfaction for MU-MIMO Systems
Ahmed M. Nor, Lukas T. N. Landau, E. Veronica Belmega +1
Scheduling in multiuser multiple input multiple output (MU-MIMO) systems is essential for efficient resource allocation and overall performance enhancement. In this work, a multius…
Channel State Information Preprocessing for CSI-based Physical-Layer Authentication Using Reconciliation
Atsu Kokuvi Angelo Passah, Rodrigo C. de Lamare, Arsenia Chorti
This paper introduces an adaptive preprocessing technique to enhance the accuracy of channel state information-based physical layer authentication (CSI-PLA) alleviating CSI variati…
Covariance Matrix Construction with Preprocessing-Based Spatial Sampling for Robust Adaptive Beamforming
Saeed Mohammadzadeh, Rodrigo C. de Lamare, Yuriy Zakharov
This work proposes an efficient, robust adaptive beamforming technique to deal with steering vector (SV) estimation mismatches and data covariance matrix reconstruction problems. I…
Revisiting XL-MIMO Channel Estimation: When Dual-Wideband Effects Meet Near Field
Anzheng Tang, Jun-Bo Wang, Yijin Pan +4
The deployment of extremely large antenna arrays (ELAAs) in extremely large-scale multiple-input multiple-output (XL-MIMO) systems introduces significant near-field effects, such a…
Shape Adaptive Reconfigurable Holographic Surfaces
Jalal Jalali, Mostafa Darabi, Rodrigo C. de Lamare
Reconfigurable Intelligent Surfaces (RIS) have emerged as a key solution to dynamically adjust wireless propagation by tuning the reflection coefficients of large arrays of passive…
Efficient Robust Adaptive Beamforming Based on Spatial Sampling with Virtual Sensors
S. Mohammedzadeh, R. de Lamare
Robust adaptive beamforming (RAB) based on interference-plus-noise covariance (IPNC) matrix reconstruction can experience serious performance degradation in the presence of look di…