3 papers
eess.SP2026
Multi-User MIMO Enhancement using Metasurface Wavefront Bending (MWB)
Xiaolu Yang, Oscar Cespedes Vicente, Christophe Caloz
This paper introduces metasurface wavefront bending (MWB) to enhance spatial multiplexing in radiative nearfield multi-user multiple-input multiple-output (MU-MIMO) systems. By inc…
eess.SP2026
MIMO Capacity Enhancement by Grating Walls: A Physics-Based Proof of Principle
Xiaolu Yang, Oscar Cespedes Vicente, Christophe Caloz
This paper investigates the passive enhancement of MIMO spectral efficiency through boundary engineering in a simplified two dimensional indoor proof of principle model. The propag…
eess.SP2025
Analog OFDM based on Real-Time Fourier Transformation
Xiaolu Yang, Oscar Céspedes Vicente, Christophe Caloz
This paper proposes an analog orthogonal frequency division multiplexing (OFDM) architecture based on the real-time Fourier transform (RTFT). The core enabling component is a linea…