792 citations · 3.8k across the 139 of their papers we have counts for
24 papers · 1 filter
Low-overhead Beam Training Scheme for Extremely Large-Scale RIS in Near-field
Wang Liu, Cunhua Pan, Hong Ren +3
Extremely large-scale reconfigurable intelligent surface (XL-RIS) has recently been proposed and is recognized as a promising technology that can further enhance the capacity of co…
Resource Allocation for Uplink Cell-Free Massive MIMO enabled URLLC in a Smart Factory
Qihao Peng, Hong Ren, Cunhua Pan +2
Smart factories need to support the simultaneous communication of multiple industrial Internet-of-Things (IIoT) devices with ultra-reliability and low-latency communication (URLLC)…
Device Scheduling for Over-the-Air Federated Learning with Differential Privacy
Na Yan, Kezhi Wang, Cunhua Pan +1
In this paper, we propose a device scheduling scheme for differentially private over-the-air federated learning (DP-OTA-FL) systems, referred to as S-DPOTAFL, where the privacy of…
Channel Tracking for RIS-aided mmWave Communications Under High Mobility Scenarios
Yu Liu, Ming Chen, Cunhua Pan +5
The emerging reconfigurable intelligent surface (RIS) technology is promising for applications in the millimeter wave (mmWave) communication systems to effectively compensate for p…
Two-Timescale Transmission Design for Wireless Communication Systems Aided by Active RIS
Zhangjie Peng, Tianshu Li, Cunhua Pan +2
This paper considers an active reconfigurable intelligent surface (RIS)-aided communication system, where an M-antenna base station (BS) transmits data symbols to a single-antenna…
Fingerprint Based mmWave Positioning System Aided by Reconfigurable Intelligent Surface
Tuo Wu, Cunhua Pan, Yijin Pan +3
Reconfigurable intelligent surface (RIS) is a promising technique for millimeter wave (mmWave) positioning systems. In this paper, we consider multiple mobile users (MUs) positioni…
Toward Secure and Private Over-the-Air Federated Learning
Na Yan, Kezhi Wang, Kangda Zhi +3
In this paper, a novel secure and private over-the-air federated learning (SP-OTA-FL) framework is studied where noise is employed to protect data privacy and system security. Spec…
Two-Timescale Transmission Design for RIS-Aided Cell-Free Massive MIMO Systems
Jianxin Dai, Jin Ge, Kangda Zhi +4
This paper investigates the performance of a two-timescale transmission design for uplink reconfigurable intelligent surface (RIS)-aided cell-free massive multiple-input multiple-o…
Deep Learning Based Beam Training for Extremely Large-Scale Massive MIMO in Near-Field Domain
Wang Liu, Hong Ren, Cunhua Pan +1
Extremely large-scale massive multiple-input-multiple-output (XL-MIMO) is regarded as a promising technology for next-generation communication systems. In order to enhance the beam…
Active Reconfigurable Intelligent Surface for Mobile Edge Computing
Zhangjie Peng, Ruisong Weng, Zhenkun Zhang +2
This paper investigates an active reconfigurable intelligent surface (RIS)-aided mobile edge computing (MEC) system. Compared with passive RIS, the active RIS is equipped with acti…
Error Propagation and Overhead Reduced Channel Estimation for RIS-Aided Multi-User mmWave Systems
Zhendong Peng, Cunhua Pan, Gui Zhou +1
In this paper, we propose a novel two-stage based uplink channel estimation strategy with reduced pilot overhead and error propagation for a reconfigurable intelligent surface (RIS…
Energy Minimization in RIS-Assisted UAV-Enabled Wireless Power Transfer Systems
Hong Ren, Zhenkun Zhang, Zhangjie Peng +2
Unmanned aerial vehicle (UAV)-enabled wireless power transfer (WPT) systems offer significant advantages in coverage and deployment flexibility, but suffer from endurance limitatio…
Performance Analysis and Optimization for RIS-Assisted Multi-User Massive MIMO Systems with Imperfect Hardware
Zhangjie Peng, Xianzhe Chen, Cunhua Pan +2
The paper studies a reconfigurable intelligent surface (RIS)-assisted multi-user uplink massive multiple-input multiple-output (MIMO) system with imperfect hardware. At the RIS, th…
Multi-Pair D2D Communications Aided by An Active RIS over Spatially Correlated Channels with Phase Noise
Zhangjie Peng, Xue Liu, Cunhua Pan +2
This paper investigates a multi-pair device-to-device (D2D) communication system aided by an active reconfigurable intelligent surface (RIS) with phase noise and direct link. The a…
Deep Reinforcement Learning for RIS-aided Multiuser Full-Duplex Secure Communications with Hardware Impairments
Zhangjie Peng, Zhibo Zhang, Lei Kong +3
In this paper, we investigate a reconfigurable intelligent surface (RIS)-aided multiuser full-duplex secure communication system with hardware impairments at transceivers and RIS,…
Secrecy Performance Analysis of RIS-aided Communication System with Randomly Flying Eavesdroppers
Lai Wei, Kezhi Wang, Cunhua Pan +1
In this letter, we analyze the secrecy performance of a reconfigurable intelligent surface (RIS)-aided communication system with spatially random unmanned aerial vehicles (UAVs) ac…
MSE-Based Transceiver Designs for RIS-Aided Communications With Hardware Impairments
Jingwen Zhao, Ming Chen, Cunhua Pan +3
It is challenging to precisely configure the phase shifts of the reflecting elements at the reconfigurable intelligent surface (RIS) due to inherent hardware impairments (HIs). In…
RIS-Aided Near-Field Localization and Channel Estimation for the Sub-Terahertz System
Yijin Pan, Cunhua Pan, Shi Jin +1
The low hardware cost makes ultra-large (XL) reconfigurable intelligent surface (RIS) an attractive solution for the performance enhancement of localization and communication syste…
RIS-Aided Localization Algorithm and Analysis: Tackling Non-Gaussian Angle Estimation Errors
Tuo Wu, Hong Ren, Cunhua Pan +5
Reconfigurable intelligent surface (RIS)-aided localization systems are increasingly recognized for enhancing accuracy in internet of things (IoT) networks. However, prevailing stu…
Joint Angle Estimation Error Analysis and 3D Positioning Algorithm Design for mmWave Positioning System
Tuo Wu, Cunhua Pan, Yijin Pan +5
In this paper, we propose a comprehensive framework to jointly analyze the angle estimation error and design the three-dimensional (3D) positioning algorithm for a millimeter wave…
Channel Estimation for RIS-Aided Multi-User mmWave Systems with Uniform Planar Arrays
Zhendong Peng, Gui Zhou, Cunhua Pan +4
In this paper, we adopt a three-stage based uplink channel estimation protocol with reduced pilot overhead for an reconfigurable intelligent surface (RIS)-aided multi-user (MU) mil…
Low-Complexity Beamforming Design for IRS-Aided NOMA Communication System with Imperfect CSI
Yasaman Omid, S. M. Mahdi Shahabi, Cunhua Pan +2
Intelligent reflecting surface (IRS) as a promising technology rendering high throughput in future communication systems is compatible with various communication techniques such as…
Robust Transmission Design for RIS-assisted Secure Multiuser Communication Systems in the Presence of Hardware Impairments
Zhangjie Peng, Ruisong Weng, Cunhua Pan +3
This paper investigates reconfigurable intelligent surface (RIS)-assisted secure multiuser communication systems subject to hardware impairments (HIs). We jointly optimize the beam…
Beamforming and Power Allocation for Double-RIS-aided Two-way Directional Modulation Network
Rongen Dong, Feng Shu, Ri-Qing Chen +3
To improve the information exchange rate between Alice and Bob in traditional two-way directional modulation (TWDM) network, a new double-reconfigurable intelligent surface (RIS)-a…