55 citations · 78 across the 58 of their papers we have counts for
27 papers · 1 filter
Movable Intelligent Surface (MIS) for Wireless Communications: Architecture, Modeling, Algorithm, and Prototyping
Ziyuan Zheng, Qingqing Wu, Wen Chen +2
Reconfigurable intelligent surfaces enhance wireless systems by reshaping propagation environments. However, dynamic metasurfaces (MSs) with numerous phase-shift elements incur und…
Efficient Joint Precoding Design for Wideband Intelligent Reflecting Surface-Assisted Cell-Free Network
Yajun Wang, Jinghan Jiang, Xin Du +3
In this paper, we propose an efficient joint precoding design method to maximize the weighted sum-rate in wideband intelligent reflecting surface (IRS)-assisted cell-free networks…
IRS Aided Federated Learning: Multiple Access and Fundamental Tradeoff
Guangji Chen, Jun Li, Qingqing Wu +2
This paper investigates an intelligent reflecting surface (IRS) aided wireless federated learning (FL) system, where an access point (AP) coordinates multiple edge devices to train…
IREE Oriented Active RIS-Assisted Green communication System with Outdated CSI
Kai Cao, Tao Yu, Jihong Li +5
The rapid evolution of communication technologies has spurred a growing demand for energy-efficient network architectures and performance metrics. Active Reconfigurable Intelligent…
Model Predictive Control Enabled UAV Trajectory Optimization and Secure Resource Allocation
Zhendong Li, Chang Su, Zhou Su +4
In this paper, we investigate a secure communication architecture based on unmanned aerial vehicle (UAV), which enhances the security performance of the communication system throug…
Joint Discrete Antenna Positioning and Beamforming Optimization in Movable Antenna Enabled Full-Duplex ISAC Networks
Zhendong Li, Jianle Ba, Zhou Su +4
In this paper, we propose a full-duplex integrated sensing and communication (ISAC) system enabled by a movable antenna (MA). By leveraging the characteristic of MA that can increa…
Discrete RIS Enhanced Space Shift Keying MIMO System via Reflecting Beamforming Optimization
Xusheng Zhu, Qingqing Wu, Wen Chen +3
In this paper, a discrete reconfigurable intelligent surface (RIS)-assisted spatial shift keying (SSK) multiple-input multiple-output (MIMO) scheme is investigated, in which a dire…
Spatial Multiplexing Oriented Channel Reconfiguration in Multi-IRS Aided MIMO Systems
Yuxuan Chen, Qingqing Wu, Guangji Chen +1
Spatial multiplexing plays a significant role in improving the capacity of multiple-input multiple-output (MIMO) communication systems. To improve the spectral efficiency (SE) of a…
Towards TMA-Based Transmissive RIS Transceiver Enabled Downlink Communication Networks: A Consensus-ADMM Approach
Zhendong Li, Wen Chen, Haoran Qin +4
This paper presents a novel multi-stream downlink communication system that utilizes a transmissive reconfigurable intelligent surface (RIS) transceiver. Specifically, we elaborate…
Movable Antennas Enabled Wireless-Powered NOMA: Continuous and Discrete Positioning Designs
Ying Gao, Qingqing Wu, Wen Chen
This paper investigates a movable antenna (MA)-enabled wireless-powered communication network (WPCN), where multiple wireless devices (WDs) first harvest energy from the downlink (…
Movable Antennas Meet Intelligent Reflecting Surface: When Do We Need Movable Antennas?
Xin Wei, Weidong Mei, Qingqing Wu +2
Intelligent reflecting surface (IRS) and movable antenna (MA)/fluid antenna (FA) techniques have both received increasing attention in the realm of wireless communications due to t…
Transmissive RIS Enabled Transceiver Systems:Architecture, Design Issues and Opportunities
Zhendong Li, Wen Chen, Qingqing Wu +4
Reconfigurable intelligent surface (RIS) is anticipated to augment the performance of beyond fifth-generation (B5G) and sixth-generation (6G) networks by intelligently manipulating…
Energy-Aware UAV-Enabled Target Tracking: Online Optimization with Location Constraints
Yifan Jiang, Qingqing Wu, Wen Chen +1
For unmanned aerial vehicle (UAV) trajectory design, the total propulsion energy consumption and initial-final location constraints are practical factors to consider. However, unli…
Cramer-Rao Bound Minimization for Movable Antenna-Assisted Multiuser Integrated Sensing and Communications
Haoran Qin, Wen Chen, Qingqing Wu +3
This paper investigates a movable antenna (MA)-assisted multiuser integrated sensing and communication (ISAC) system, where the base station (BS) and communication users are all eq…
Suppressing Beam Squint Effect For Near-Field Wideband Communication Through Movable Antennas
Yanze Zhu, Qingqing Wu, Yang Liu +2
In this correspondence, we study deploying movable antenna (MA) array in a wideband multiple-input-single-output (MISO) communication system, where near-field (NF) channel model is…
Multi-Functional Beamforming Design for Integrated Sensing, Communication, and Computation
Yapeng Zhao, Qingqing Wu, Wen Chen +5
Integrated sensing and communication (ISAC) systems may face a heavy computation burden since the sensory data needs to be further processed. This paper studies a novel system that…
Movable Antenna Enhanced NOMA Short-Packet Transmission
Xinyuan He, Wen Chen, Qingqing Wu +2
This letter investigates a short-packet downlink transmission system using non-orthogonal multiple access (NOMA) enhanced via movable antenna (MA). We focuses on maximizing the eff…
Movable Antenna Empowered Downlink NOMA Systems: Power Allocation and Antenna Position Optimization
Yufeng Zhou, Wen Chen, Qingqing Wu +2
This paper investigates a novel communication paradigm employing movable antennas (MAs) within a multiple-input single-output (MISO) non-orthogonal multiple access (NOMA) downlink…
Communication-Efficient Model Aggregation with Layer Divergence Feedback in Federated Learning
Liwei Wang, Jun Li, Wen Chen +2
Federated Learning (FL) facilitates collaborative machine learning by training models on local datasets, and subsequently aggregating these local models at a central server. Howeve…
Joint Transmitter and Receiver Design for Movable Antenna Enhanced Multicast Communications
Ying Gao, Qingqing Wu, Wen Chen
Movable antenna (MA) is an emerging technology that utilizes localized antenna movement to achieve better channel conditions for enhancing communication performance. In this paper,…
Elements Allocation for Joint Active and Passive IRS Aided Wireless Communications: A Rate-Maximization Perspective
Chaoying Huang, Wen Chen, Qingqing Wu +1
Unlike previous works that focused solely on passive intelligent reflecting surface (PIRS) or active IRS (AIRS), a novel joint AIRS and PIRS architecture has been developed to flex…
Performance Evaluation of RIS-Assisted Spatial Modulation for Downlink Transmission
Xusheng Zhu, Qingqing Wu, Wen Chen
This paper explores the performance of reconfigurable intelligent surface (RIS) assisted spatial modulation (SM) downlink communication systems, focusing on the average bit error p…
Transmissive RIS Transmitter Enabled Spatial Modulation for MIMO Systems
Xusheng Zhu, Qingqing Wu, Wen Chen
In this paper, we propose a novel transmissive reconfigurable intelligent surface (TRIS) transmitter-enabled spatial modulation (SM) multiple-input multiple-output (MIMO) system. I…
Robust Analysis of Full-Duplex Two-Way Space Shift Keying With RIS Systems
Xusheng Zhu, Wen Chen, Qingqing Wu +3
Reconfigurable intelligent surface (RIS)-assisted index modulation system schemes are considered a promising technology for sixth-generation (6G) wireless communication systems, wh…