Holographic MIMO communications: Theoretical foundations, enabling technologies, and future directions

T Gong, P Gavriilidis, R Ji, C Huang… - … Surveys & Tutorials, 2023 - ieeexplore.ieee.org
Future wireless systems are envisioned to create an endogenously holography-capable,
intelligent, and programmable radio propagation environment, that will offer unprecedented …

Design of reconfigurable intelligent surfaces by using s-parameter multiport network theory–optimization and full-wave validation

A Abrardo, A Toccafondi… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Multiport network theory has been proved to be a suitable abstraction model for analyzing
and optimizing reconfigurable intelligent surfaces (RISs) in an electromagnetically …

Backpropagation-free training of deep physical neural networks

A Momeni, B Rahmani, M Malléjac, P Del Hougne… - Science, 2023 - science.org
Recent successes in deep learning for vision and natural language processing are
attributed to larger models but come with energy consumption and scalability issues. Current …

Systematic physics-compliant analysis of over-the-air channel equalization in RIS-parametrized wireless networks-on-chip

J Tapie, H Prod'homme, MF Imani… - IEEE Journal on …, 2024 - ieeexplore.ieee.org
Wireless networks-on-chip (WNoCs) are an enticing complementary interconnect
technology for multi-core chips but face severe resource constraints. Being limited to simple …

Experimentally realized physical-model-based frugal wave control in metasurface-programmable complex media

J Sol, H Prod'homme, L Le Magoarou… - Nature …, 2024 - nature.com
Metasurface-programmable radio environments are considered a key ingredient of next-
generation wireless networks. Yet, identifying a metasurface configuration that yields a …

Mutual coupling in RIS-aided communication: Model training and experimental validation

P Zheng, R Wang, A Shamim… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Mutual coupling is increasingly important in reconfigurable intelligent surface (RIS)-aided
communications, particularly when RIS elements are densely integrated in applications such …

Optimal Blind Focusing on Perturbation‐Inducing Targets in Sub‐Unitary Complex Media

J Sol, L Le Magoarou… - Laser & Photonics …, 2025 - Wiley Online Library
The scattering of waves in a complex medium is perturbed by polarizability changes or
displacements of embedded targets. These perturbations can serve as perfectly non …

Covert Scattering Control in Metamaterials with Non‐Locally Encoded Hidden Symmetry

J Sol, M Röntgen, P Del Hougne - Advanced Materials, 2024 - Wiley Online Library
Symmetries and tunability are of fundamental importance in wave scattering control, but
symmetries are often obvious upon visual inspection, which constitutes a significant …

Multi-RIS-empowered multiple access: A distributed sum-rate maximization approach

KD Katsanos, P Di Lorenzo… - IEEE Journal of …, 2024 - ieeexplore.ieee.org
The plethora of wirelessly connected devices, whose deployment density is expected to
largely increase in the upcoming sixth Generation (6G) of wireless networks, will naturally …

Efficient computation of physics-compliant channel realizations for (rich-scattering) RIS-parametrized radio environments

H Prod'homme, P Del Hougne - IEEE Communications Letters, 2023 - ieeexplore.ieee.org
Physics-compliant channel models for radio environments parametrized by reconfigurable
intelligent surfaces (RISs) require the inversion of an “interaction matrix” to capture the …