265 citations · 775 across the 34 of their papers we have counts for
34 papers
Bending Beam for THz Wireless Networks: Fundamental, Design Issue, and Prototype
Aoran Liu, Xin Tong Hu, Weidong Mei +5
Bending beams, characterized by their non diffracting and self-healing properties in the near field, offer a new approach to bypass blockage in terahertz (THz) wireless communicati…
Deep Learning-Empowered Movable-Antenna Position Optimization with Partial CSI
Lele Lu, Weidong Mei, Xin Wei +5
Movable antennas (MAs) are a promising technology to improve wireless data rates by dynamically adjusting their positions to avoid deep fading. However, finding the optimal MA posi…
Unlocking the Potential of Movable Antennas: General and Practical Antenna Position Optimization
Weidong Mei, Changhao Liu, Dong Wang +6
Recently, movable antenna (MA) has attracted wide attention in wireless communications due to its potential in enhancing wireless communication performance via local movement withi…
Mixture-of-Experts Diffusion Models for Adaptive Massive MIMO Channel Estimation via Variational Bayesian Inference
Zhuorui Jiang, Jun Fang, Boyu Ning +2
Channel estimation is essential to massive multiple-input multiple-output (MIMO) systems. While recent generative model-based approaches using lightweight diffusion models (DMs) ha…
Joint Communication and Trajectory Design for Movable Antenna Systems
Jiaxuan Li, Weidong Mei, Changhao Liu +3
Movable antennas (MAs) have attracted significant attention in wireless communications due to their ability to reconfigure channel conditions by flexibly adjusting the antenna posi…
Terahertz Beam Squint Mitigation via Six-Dimensional Movable Antennas
Yike Xie, Weidong Mei, Dong Wang +5
Analog beamforming holds great potential for future terahertz (THz) communications due to its ability to generate high-gain directional beams with low-cost phase shifters. However,…
Integrated Channel Estimation and Sensing for Near-Field ELAA Systems via Low-Rank Tensor Decomposition
Jionghui Wang, Jun Fang, Hongbin Li +1
In this paper, we study the problem of uplink channel estimation for near-filed orthogonal frequency division multiplexing (OFDM) systems, where a base station (BS), equipped with…
Movable-Antenna-Enhanced Physical-Layer Service Integration: Performance Analysis and Optimization
Xuanlin Shen, Xin Wei, Weidong Mei +3
Movable antennas (MAs) have drawn increasing attention in wireless communications due to their capability to create favorable channel conditions via local movement within a confine…
Near-Field THz Bending Beamforming: A Convex Optimization Perspective
Aoran Liu, Weidong Mei, Peilan Wang +4
Terahertz (THz) communication systems suffer severe blockage issues, which may significantly degrade the communication coverage and quality. Bending beams, capable of adjusting the…
Advancing THz Radio Map Construction and Obstacle Sensing: An Integrated Generative Framework in ISAC
Tianyu Hu, Shuai Wang, Yunhang Xie +7
Integrated sensing and communication (ISAC) in the terahertz (THz) band enables obstacle detection, which in turn facilitates efficient beam management to mitigate THz signal block…
THz Beam Squint Mitigation via 3D Rotatable Antennas
Yike Xie, Weidong Mei, Dong Wang +4
Analog beamforming holds great potential for future terahertz (THz) communications due to its ability to generate high-gain directional beams with low-cost phase shifters.However,…
Pre-Equalization Aided Grant-Free Massive Access in Massive MIMO System
Yueqing Wang, Yikun Mei, Zhen Gao +4
The spatial diversity and multiplexing advantages of massive multi-input-multi-output (mMIMO) can significantly improve the capacity of massive non-orthogonal multiple access (NOMA…
Integrated Location Sensing and Communication for Ultra-Massive MIMO With Hybrid-Field Beam-Squint Effect
Zhen Gao, Xingyu Zhou, Boyu Ning +3
The advent of ultra-massive multiple-input-multiple output systems holds great promise for next-generation communications, yet their channels exhibit hybrid far- and near- field be…
Codebook Design and Performance Analysis for Wideband Beamforming in Terahertz Communications
Boyu Ning, Weidong Mei, Lipeng Zhu +2
The codebook-based analog beamforming is appealing for future terahertz (THz) communications since it can generate high-gain directional beams with low-cost phase shifters via low-…
Flexible Beam Coverage Optimization for Movable-Antenna Array
Dong Wang, Weidong Mei, Boyu Ning +1
Fluid antennas (FAs) and movable antennas (MAs) have attracted increasing attention in wireless communications recently. As compared to the conventional fixed-position antennas (FP…
Sum Rate Maximization for Movable Antenna Enabled Uplink NOMA
Nianzu Li, Peiran Wu, Boyu Ning +1
Movable antenna (MA) has been recently proposed as a promising candidate technology for the next generation wireless communication systems due to its significant capability of reco…
Movable-Antenna Position Optimization for Physical-Layer Security via Discrete Sampling
Weidong Mei, Xin Wei, Yijie Liu +2
Fluid antennas (FAs) and mobile antennas (MAs) are innovative technologies in wireless communications that are able to proactively improve channel conditions by dynamically adjusti…
CSI-Free Position Optimization for Movable Antenna Communication Systems: A Black-Box Optimization Approach
Xianlong Zeng, Jun Fang, Bin Wang +2
Movable antenna (MA) is a new technology which leverages local movement of antennas to improve channel qualities and enhance the communication performance. Nevertheless, to fully r…
Joint Beamforming and Antenna Position Optimization for Movable Antenna-Assisted Spectrum Sharing
Xin Wei, Weidong Mei, Dong Wang +2
Fluid antennas (FAs) and movable antennas (MAs) have drawn increasing attention in wireless communications recently due to their ability to create favorable channel conditions via…
Movable-Antenna Position Optimization: A Graph-based Approach
Weidong Mei, Xin Wei, Boyu Ning +2
Fluid antennas (FAs) and movable antennas (MAs) have emerged as promising technologies in wireless communications, which offer the flexibility to improve channel conditions by adju…
Knowledge and Data Dual-Driven Channel Estimation and Feedback for Ultra-Massive MIMO Systems under Hybrid Field Beam Squint Effect
Kuiyu Wang, Zhen Gao, Sheng Chen +5
Acquiring accurate channel state information (CSI) at an access point (AP) is challenging for wideband millimeter wave (mmWave) ultra-massive multiple-input and multiple-output (UM…
Flexible Precoding for Multi-User Movable Antenna Communications
Songjie Yang, Wanting Lyu, Boyu Ning +2
This letter rethinks traditional precoding in multi-user wireless communications with movable antennas (MAs). Utilizing MAs for optimal antenna positioning, we introduce a sparse o…
Near-Field Channel Estimation for Extremely Large-Scale Reconfigurable Intelligent Surface (XL-RIS)-Aided Wideband mmWave Systems
Songjie Yang, Chenfei Xie, Wanting Lyu +3
Near-field communications present new opportunities over near-field channels, however, the spherical wavefront propagation makes near-field signal processing challenging. In this c…
Movable-Antenna Enhanced Multiuser Communication via Antenna Position Optimization
Lipeng Zhu, Wenyan Ma, Boyu Ning +1
Movable antenna (MA) is a promising technology to improve wireless communication performance by varying the antenna position in a given finite area at the transceivers to create mo…