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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…
Near-Field Sparse Channel Estimation for Extremely Large-Scale RIS-Aided Wireless Communications
Zixing Tang, Yuanbin Chen, Ying Wang +4
A significant increase in the number of reconfigurable intelligent surface (RIS) elements results in a spherical wavefront in the near field of extremely large-scale RIS (XL-RIS).…
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…
Unlocking Metasurface Practicality for B5G Networks: AI-assisted RIS Planning
Guillermo Encinas-Lago, Antonio Albanese, Vincenzo Sciancalepore +2
The advent of reconfigurable intelligent surfaces(RISs) brings along significant improvements for wireless technology on the verge of beyond-fifth-generation networks (B5G).The pro…
Stacked Intelligent Metasurface Performs a 2D DFT in the Wave Domain for DOA Estimation
Jiancheng An, Chau Yuen, Marco Di Renzo +3
Staked intelligent metasurface (SIM) based techniques are developed to perform two-dimensional (2D) direction-of-arrival (DOA) estimation. In contrast to the conventional designs,…
Measurement-Based Small-Scale Channel Model for Sub-6 GHz RIS-Assisted Communications
Jian Sang, Jifeng Lan, Mingyong Zhou +6
Reconfigurable intelligent surfaces (RISs) have attracted increasing interest from both academia and industry, thanks to their unique features on controlling electromagnetic (EM) w…
Beyond Diagonal Reconfigurable Intelligent Surfaces with Mutual Coupling: Modeling and Optimization
Hongyu Li, Shanpu Shen, Matteo Nerini +2
This work studies the modeling and optimization of beyond diagonal reconfigurable intelligent surface (BD-RIS) aided wireless communication systems in the presence of mutual coupli…
Distributed CSMA/CA MAC Protocol for RIS-Assisted Networks
Zhou Zhang, Saman Atapattu, Yizhu Wang +1
This paper focuses on achieving optimal multi-user channel access in distributed networks using a reconfigurable intelligent surface (RIS). The network includes wireless channels w…
Toward Beamfocusing-Aided Near-Field Communications: Research Advances, Potential, and Challenges
Jiancheng An, Chau Yuen, Linglong Dai +3
Next-generation mobile networks promise to support high throughput, massive connectivity, and improved energy efficiency. To achieve these ambitious goals, extremely large-scale an…
Tuning of Ray-Based Channel Model for 5G Indoor Industrial Scenarios
Gurjot Singh Bhatia, Yoann Corre, Marco Di Renzo
This paper presents an innovative method that can be used to produce deterministic channel models for 5G industrial internet-of-things (IIoT) scenarios. Ray-tracing (RT) channel em…
RIS-Assisted Wireless Communications: Long-Term versus Short-Term Phase Shift Designs
Trinh Van Chien, Lam Thanh Tu, Waqas Khalid +3
Reconfigurable intelligent surface (RIS) has recently gained significant interest as an emerging technology for future wireless networks thanks to its potential for improving the c…
Stacked Intelligent Metasurfaces for Multiuser Downlink Beamforming in the Wave Domain
Jiancheng An, Marco Di Renzo, Mérouane Debbah +2
Intelligent metasurface has recently emerged as a promising technology that enables the customization of wireless environments by harnessing large numbers of low-cost reconfigurabl…
Analysis and Optimization of Reconfigurable Intelligent Surfaces Based on -Parameters Multiport Network Theory
Andrea Abrardo, Alberto Toccafondi, Marco Di Renzo
In this paper, we consider a reconfigurable intelligent surface (RIS) and model it by using multiport network theory. We first compare the representation of RIS by using -parame…
A Transmit-Receive Parameter Separable Electromagnetic Channel Model for LoS Holographic MIMO
Tierui Gong, Chongwen Huang, Jiguang He +3
To support the extremely high spectral efficiency and energy efficiency requirements, and emerging applications of future wireless communications, holographic multiple-input multip…
Towards Integrated Sensing and Communications for 6G: A Standardization Perspective
Aryan Kaushik, Rohit Singh, Shalanika Dayarathna +8
The radio communication division of the International Telecommunication Union (ITU-R) has recently adopted Integrated Sensing and Communication (ISAC) among the key usage scenarios…
On the Degrees of Freedom and Eigenfunctions of Line-of-Sight Holographic MIMO Communications
Juan Carlos Ruiz-Sicilia, Marco Di Renzo, Marco Donald Migliore +2
We consider a line-of-sight communication link between two holographic surfaces (HoloSs), and provide a closed-form expression for the effective degrees of freedom (eDoF), i.e., th…
RIS-Aided Index Modulation with Greedy Detection over Rician Fading Channels
Aritra Basu, Soumya P. Dash, Aryan Kaushik +3
Index modulation schemes for reconfigurable intelligent surfaces (RIS)-assisted systems are envisioned as promising technologies for fifth-generation-advanced and sixth-generation…
Terahertz Communications and Sensing for 6G and Beyond: A Comprehensive Review
Wei Jiang, Qiuheng Zhou, Jiguang He +11
Next-generation cellular technologies, commonly referred to as the 6G, are envisioned to support a higher system capacity, better performance, and network sensing capabilities. The…