26 citations · 57 across the 17 of their papers we have counts for
18 papers
Channel Estimation for Beyond Diagonal Reconfigurable Intelligent Surfaces with Group-Connected Architectures
Hongyu Li, Yumeng Zhang, Bruno Clerckx
We study channel estimation for a beyond diagonal reconfigurable intelligent surface (BD-RIS) aided multiple input single output system. We first describe the channel estimation st…
Beyond Diagonal Reconfigurable Intelligent Surfaces Utilizing Graph Theory: Modeling, Architecture Design, and Optimization
Matteo Nerini, Shanpu Shen, Hongyu Li +1
Recently, beyond diagonal reconfigurable intelligent surface (BD-RIS) has been proposed to generalize conventional RIS. BD-RIS has a scattering matrix that is not restricted to bei…
Synergizing Beyond Diagonal Reconfigurable Intelligent Surface and Rate-Splitting Multiple Access
Hongyu Li, Shanpu Shen, Bruno Clerckx
This work focuses on the synergy of rate-splitting multiple access (RSMA) and beyond diagonal reconfigurable intelligent surface (BD-RIS) to enlarge the coverage, improve the perfo…
Reconfigurable Intelligent Surfaces 2.0: Beyond Diagonal Phase Shift Matrices
Hongyu Li, Shanpu Shen, Matteo Nerini +1
Reconfigurable intelligent surface (RIS) has been envisioned as a promising technique to enable and enhance future wireless communications due to its potential to engineer the wire…
A Dual-Function Radar-Communication System Empowered by Beyond Diagonal Reconfigurable Intelligent Surface
Bowen Wang, Hongyu Li, Shanpu Shen +2
This work focuses on the use of reconfigurable intelligent surface (RIS) in dual-function radar-communication (DFRC) systems to improve communication capacity and sensing precision…
Joint Transmit and Receive Beamforming Design in Full-Duplex Integrated Sensing and Communications
Ziang Liu, Sundar Aditya, Hongyu Li +1
Integrated sensing and communication (ISAC) has been envisioned as a solution to realize the sensing capability required for emerging applications in wireless networks, while effic…
A Dynamic Grouping Strategy for Beyond Diagonal Reconfigurable Intelligent Surfaces with Hybrid Transmitting and Reflecting Mode
Hongyu Li, Shanpu Shen, Bruno Clerckx
Beyond diagonal reconfigurable intelligent surface (BD-RIS) is a novel branch of RIS which breaks through the limitation of traditional RIS with diagonal scattering matrices. Howev…
Dynamic Hybrid Beamforming Design for Dual-Function Radar-Communication Systems
Bowen Wang, Hongyu Li, Ziyang Cheng
This paper investigates dynamic hybrid beamforming (HBF) for a dual-function radar-communication (DFRC) system, where the DFRC base station (BS) simultaneously serves multiple sing…
Beyond Diagonal Reconfigurable Intelligent Surfaces: A Multi-Sector Mode Enabling Highly Directional Full-Space Wireless Coverage
Hongyu Li, Shanpu Shen, Bruno Clerckx
Reconfigurable intelligent surface (RIS) has gained much traction due to its potential to manipulate the propagation environment via nearly-passive reconfigurable elements. In our…
Beyond Diagonal Reconfigurable Intelligent Surfaces: From Transmitting and Reflecting Modes to Single-, Group-, and Fully-Connected Architectures
Hongyu Li, Shanpu Shen, Bruno Clerckx
Reconfigurable intelligent surfaces (RISs) are envisioned as a promising technology for future wireless communications. With various hardware realizations, RISs can work under diff…
Rate-Splitting Multiple Access for 6G -- Part III: Interplay with Reconfigurable Intelligent Surfaces
Hongyu Li, Yijie Mao, Onur Dizdar +1
This letter is the third part of a three-part tutorial that focuses on rate-splitting multiple access (RSMA) for 6G. As Part III of the tutorial, this letter provides an overview o…
Channel Estimation for Practical IRS-Assisted OFDM Systems
Wanning Yang, Hongyu Li, Ming Li +2
Intelligent reflecting surface (IRS), composed of a large number of hardware-efficient passive elements, is deemed as a potential technique for future wireless communications since…
Intelligent reflecting surface enhanced wideband MIMO-OFDM communications: From practical model to reflection optimization
Hongyu Li, Wenhao Cai, Yang Liu +3
Intelligent reflecting surface (IRS) is envisioned as a revolutionary technology for future wireless communication systems since it can intelligently change radio environment and i…
Practical Modeling and Beamforming for Intelligent Reflecting Surface Aided Wideband Systems
Wenhao Cai, Hongyu Li, Ming Li +1
Intelligent reflecting surface (IRS) has emerged as a revolutionizing solution to enhance wireless communications by intelligently changing the propagation environment. Prior studi…
IRS-Enhanced Wideband MU-MISO-OFDM Communication Systems
Hongyu Li, Rang Liu, Ming Li +1
Intelligent reflecting surface (IRS) is considered as an enabling technology for future wireless communication systems since it can intelligently change the wireless environment to…
Symbol-Level Precoding Design for Intelligent Reflecting Surface Assisted Multi-user MIMO Systems
Rang Liu, Hongyu Li, Ming Li +1
Intelligent reflecting surface (IRS) has emerged as a promising solution to enhance wireless information transmissions by adaptively controlling prorogation environment. Recently,…
Hybrid beamforming with dynamic subarrays and low-resolution PSs for mmWave MU-MISO systems
Hongyu Li, Ming Li, Qian Liu
Analog/digital hybrid beamforming architectures with large-scale antenna arrays have been widely considered in millimeter wave (mmWave) communication systems because they can addre…
A Hardware-Efficient Hybrid Beamforming Solution for mmWave MIMO Systems
Ming Li, Zihuan Wang, Hongyu Li +2
In millimeter wave (mmWave) communication systems, existing hybrid beamforming solutions generally require a large number of high-resolution phase shifters (PSs) to realize analog…