11 papers
Optimization of Beyond Diagonal RIS: A Universal Framework Applicable to Arbitrary Architectures
Zheyu Wu, Bruno Clerckx
Reconfigurable intelligent surfaces (RISs) are envisioned as a promising technology for future wireless communication systems due to their ability to control the propagation enviro…
Beamforming Design for Stem-Connected Microwave Linear Analog Computer (MiLAC)-Aided Multiuser MISO Downlinks
Yuchen Zhang, Zheyu Wu, Bruno Clerckx +1
A microwave linear analog computer (MiLAC) is a tunable microwave network that performs computation through wave propagation in the analog domain. In beamforming, data streams pass…
Microwave Linear Analog Computer (MiLAC)-Aided MIMO Radar Sensing: Transmit Beamforming Design and DoA Estimation
Ziang Liu, Zheyu Wu, Bruno Clerckx
Multiple-input multiple-output (MIMO) radar has waveform diversity and large spatial degrees of freedom (DoFs), making it attractive for high-resolution sensing. Scaling MIMO radar…
RIS Optimization and Scaling Laws in Multi-Operator Systems: Is Quadratic Scaling Achievable?
Zheyu Wu, Matteo Nerini, Bruno Clerckx
This paper studies multi-operator wireless communication systems aided by general reconfigurable intelligent surface (RIS), including both conventional single-connected RIS and bey…
Low-Complexity Planar Beyond-Diagonal RIS Architecture Design Using Graph Theory
Matteo Nerini, Zheyu Wu, Shanpu Shen +1
Reconfigurable intelligent surfaces (RISs) enable programmable control of the wireless propagation environment and are key enablers for future networks. Beyond-diagonal RIS (BD-RIS…
Hybrid Digital and Microwave Linear Analog Computer (MiLAC)-aided Beamforming for Multiuser MIMO-OFDM Systems
Yiyang Peng, Zheyu Wu, Bruno Clerckx
Microwave linear analog computing (MiLAC) has recently emerged as a promising architecture for analog-domain beamforming. In particular, a hybrid digital-MiLAC architecture was pro…