16 papers
Convergence-Latency-Aware Adaptive Modulation and Resource Allocation in RIS-Assisted Wireless Federated Learning
Liwei Wang, Wen Chen, Jun Li +4
Federated learning (FL) over wireless networks suffers from significant training latency and degraded convergence due to unreliable wireless transmission, especially under blocked…
Dual-IRS Aided Near-/Hybrid-Field SWIPT: Passive Beamforming and Independent Antenna Power Splitting Design
Chaoying Huang, Wen Chen, Qingqing Wu +4
This paper proposes a novel dual-intelligent reflecting surface (IRS) aided interference-limited simultaneous wireless information and power transfer (SWIPT) system with independen…
Exploiting Movable Antennas in NOMA Networks: Joint Beamforming, Power Allocation and Antenna Position Optimization
Yufeng Zhou, Wen Chen, Qingqing Wu +4
This paper investigates the movable antenna (MA)- assisted downlink non-orthogonal multiple access (NOMA) network to maximize system throughput. In the considered scenario, both th…
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…
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…
Channel Characterization of IRS-assisted Resonant Beam Communication Systems
Wen Fang, Wen Chen, Qingqing Wu +3
To meet the growing demand for data traffic, spectrum-rich optical wireless communication (OWC) has emerged as a key technological driver for the development of 6G. The resonant be…
Enhancing Robustness and Security in ISAC Network Design: Leveraging Transmissive Reconfigurable Intelligent Surface with RSMA
Ziwei Liu, Wen Chen, Qingqing Wu +4
In this paper, we propose a novel transmissive reconfigurable intelligent surface transceiver-enhanced robust and secure integrated sensing and communication network. A time-divisi…
Multiple Intelligent Reflecting Surfaces Collaborative Wireless Localization System
Ziheng Zhang, Wen Chen, Qingqing Wu +4
This paper studies a multiple intelligent reflecting surfaces (IRSs) collaborative localization system where multiple semi-passive IRSs are deployed in the network to locate one or…
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…
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…
On the Performance of RIS-Aided Spatial Modulation for Downlink Transmission
Xusheng Zhu, Qingqing Wu, Wen Chen
In this study, we explore the performance of a reconfigurable reflecting surface (RIS)-assisted transmit spatial modulation (SM) system for downlink transmission, wherein the deplo…
Reconfigurable Intelligent Surface Aided Space Shift Keying With Imperfect CSI
Xusheng Zhu, Wen Chen, Qingqing Wu +4
In this paper, we investigate the performance of reconfigurable intelligent surface (RIS)-aided spatial shift keying (SSK) wireless communication systems with imperfect channel sta…
Performance Analysis of RIS-Aided Double Spatial Scattering Modulation for mmWave MIMO Systems
Xusheng Zhu, Wen Chen, Qingqing Wu +4
In this paper, we investigate a practical structure of reconfigurable intelligent surface (RIS)-based double spatial scattering modulation (DSSM) for millimeter-wave (mmWave) multi…