12 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,…