1.7k citations · 3.7k across the 150 of their papers we have counts for
86 papers · 1 filter
Sparse Channel Estimation for SIM-based mmWave Near-Field Communications
Jiancheng An, Enyu Shi, Jiayi Zhang +4
In this paper, we address the channel estimation (CE) problem in SIM-based multi-user (MU) millimeter-wave (mmWave) near-field communication systems. To address the severe path los…
Stacked Intelligent Metasurface-Aided Wave-Domain Signal Processing: From Communications to Sensing and Computing
Jiancheng An, Chau Yuen, Marco Di Renzo +3
Artificial neural networks possess remarkable capabilities for abstract feature extraction, while electromagnetic computing leverages wave propagation to execute complex mathematic…
Energy-Efficient SIM-assisted Communications: How Many Layers Do We Need?
Enyu Shi, Jiayi Zhang, Jiancheng An +3
The stacked intelligent metasurface (SIM), comprising multiple layers of reconfigurable transmissive metasurfaces, is becoming an increasingly viable solution for future wireless c…
Metaprism Design for Wireless Communications: Angle-Frequency Analysis, Physical Realizability Constraints, and Performance Optimization
Silvia Palmucci, Andrea Abrardo, Davide Dardari +2
Recent advancements in smart radio environment technologies aim to enhance wireless network performance through the use of low-cost electromagnetic (EM) devices. Among these, recon…
Power Minimization with Rate Constraints for Multi-User MIMO Systems with Large-Size RISs
Silvia Palmucci, Giulio Bartoli, Andrea Abrardo +2
This study focuses on the optimization of a single-cell multi-user multiple-input multiple-output (MIMO) system with multiple large-size reconfigurable intelligent surfaces (RISs).…
Spatial Multiplexing in Near-Field Line-of-Sight MIMO Communications: Paraxial and Non-Paraxial Deployments
Juan Carlos Ruiz-Sicilia, Marco Di Renzo, Placido Mursia +2
Sixth generation (6G) wireless networks are envisioned to include aspects of energy footprint reduction (sustainability), besides those of network capacity and connectivity, at the…
Design and Optimization of Reconfigurable Intelligent Surfaces Using the PEEC Method
Giuseppe Pettanice, Marco Di Renzo, Roberto Valentini +5
The design and optimization of Reconfigurable Intelligent Surfaces (RISs) are key challenges for future wireless communication systems. RISs are devices that can manipulate electro…
Multiport Network Modeling for Reconfigurable Intelligent Surfaces: Numerical Validation with a Full-Wave PEEC Simulator
Giuseppe Pettanice, Marco Di Renzo, Sumin Jeong +5
Reconfigurable Intelligent Surface (RIS) modeling and optimization are a crucial steps in developing the next generation of wireless communications. To this aim, the availability o…
T3DRIS: Advancing Conformal RIS Design through In-depth Analysis of Mutual Coupling Effects
Placido Mursia, Francesco Devoti, Marco Rossanese +4
This paper presents a theoretical and mathematical framework for the design of a conformal reconfigurable intelligent surface (RIS) that adapts to non-planar geometries, which is a…
Spatially Correlated RIS-Aided Secure Massive MIMO Under CSI and Hardware Imperfections
Dan Yang, Jindan Xu, Wei Xu +4
This paper investigates the integration of a reconfigurable intelligent surface (RIS) into a secure multiuser massive multiple-input multiple-output (MIMO) system in the presence o…
Joint Training and Reflection Pattern Optimization for Non-Ideal RIS-Aided Multiuser Systems
Zhenyao He, Jindan Xu, Hong Shen +3
Reconfigurable intelligent surface (RIS) is a promising technique to improve the performance of future wireless communication systems at low energy consumption. To reap the potenti…
Channel Estimation for Stacked Intelligent Metasurface-Assisted Wireless Networks
Xianghao Yao, Jiancheng An, Lu Gan +2
Emerging technologies, such as holographic multiple-input multiple-output (HMIMO) and stacked intelligent metasurface (SIM), are driving the development of wireless communication s…
Next Generation Advanced Transceiver Technologies for 6G and Beyond
Changsheng You, Yunlong Cai, Yuanwei Liu +4
To accommodate new applications such as extended reality, fully autonomous vehicular networks and the metaverse, next generation wireless networks are going to be subject to much m…
RIS-Assisted Physical Layer Security in Emerging RF and Optical Wireless Communication Systems: A Comprehensive Survey
Majid H. Khoshafa, Omar Maraqa, Jules M. Moualeu +5
Physical layer security (PLS) has received a growing interest from the research community for its ability to safeguard data confidentiality without relying on key distribution or e…
Two-Dimensional Direction-of-Arrival Estimation Using Stacked Intelligent Metasurfaces
Jiancheng An, Chau Yuen, Yong Liang Guan +4
Stacked intelligent metasurfaces (SIM) are capable of emulating reconfigurable physical neural networks by relying on electromagnetic (EM) waves as carriers. They can also perform…
Towards 6G Evolution: Three Enhancements, Three Innovations, and Three Major Challenges
Rohit Singh, Aryan Kaushik, Wonjae Shin +6
Over the past few decades, wireless communication has witnessed remarkable growth, experiencing several transformative changes. This article aims to provide a comprehensive overvie…
Electromagnetic Signal and Information Theory -- Electromagnetically Consistent Communication Models for the Transmission and Processing of Information
Marco Di Renzo, Marco Donald Migliore
In this paper, we present electromagnetic signal and information theory (ESIT). ESIT is an interdisciplinary scientific discipline, which amalgamates electromagnetic theory, signal…
Intelligent Surfaces Empowered Wireless Network: Recent Advances and The Road to 6G
Qingqing Wu, Beixiong Zheng, Changsheng You +11
Intelligent surfaces (ISs) have emerged as a key technology to empower a wide range of appealing applications for wireless networks, due to their low cost, high energy efficiency,…
Fluid Antenna Array Enhanced Over-the-Air Computation
Deyou Zhang, Sicong Ye, Ming Xiao +3
Over-the-air computation (AirComp) has emerged as a promising technology for fast wireless data aggregation by harnessing the superposition property of wireless multiple-access cha…
RIShield: Enabling Electromagnetic Blackout in Radiation-Sensitive Environments
G. Encinas-Lago, M. Rossanese, V. Sciancalepore +2
Reconfigurable Intelligent Surfaces (RIS) have emerged as a disruptive technology with the potential to revolutionize wireless communication systems. In this paper, we present RISh…
Empirical Validation of the Impedance-Based RIS Channel Model in an Indoor Scattering Environment
Placido Mursia, Taghrid Mazloum, Frederic Munoz +7
Ensuring the precision of channel modeling plays a pivotal role in the development of wireless communication systems, and this requirement remains a persistent challenge within the…
Stacked Intelligent Metasurface-Aided MIMO Transceiver Design
Jiancheng An, Chau Yuen, Chao Xu +5
Next-generation wireless networks are expected to utilize the limited radio frequency (RF) resources more efficiently with the aid of intelligent transceivers. To this end, we prop…
A Universal Framework for Multiport Network Analysis of Reconfigurable Intelligent Surfaces
Matteo Nerini, Shanpu Shen, Hongyu Li +2
Reconfigurable intelligent surface (RIS) is an emerging paradigm able to control the propagation environment in wireless systems. Most of the research on RIS has been dedicated to…
Design of Reconfigurable Intelligent Surfaces by Using S-Parameter Multiport Network Theory -- Optimization and Full-Wave Validation
Andrea Abrardo, Alberto Toccafondi, Marco Di Renzo
Multiport network theory has been proved to be a suitable abstraction model for analyzing and optimizing reconfigurable intelligent surfaces (RISs) in an electromagnetically consis…