1 citations · 1 across the 9 of their papers we have counts for
9 papers
Why Is Cubic-Phase Airy Beamforming Sufficient for Blockage Recovery?
Yi Wang, Linglong Dai
Blockage is a critical challenge for near-field communications, where reliable transmission depends heavily on the line-of-sight (LoS) path and can suffer severe power degradation…
Physics-Guided Neural Airy Beamforming for Near-Field Blockage Mitigation
Yi Wang, Linglong Dai
High-frequency communication systems heavily rely on line-of-sight(LoS) paths, so blockage of the LoS path can cause severe performance loss. Near-field Airy beams with curved traj…
Blockage-Robust Beamforming for Near-Field Communications: From Single-Airy to Multi-Airy
Yi Wang, Linglong Dai
High-frequency communications strongly depend on the line-of-sight (LoS) path, and obstacle blockage can severely degrade the received signal power and achievable rate. Near-field…
Near-field Beam Training under Multi-path Channels: A Hybrid Learning-and-Optimization Approach
Jiapeng Li, Changsheng You, Guoliang Cheng +3
For extremely large-scale arrays (XL-arrays), the discrete Fourier transform (DFT) codebook, conventionally used in the far-field, has recently been employed for near-field beam tr…
Wavenumber-domain signal processing for holographic MIMO: Foundations, methods, and future directions
Zijian Zhang, Linglong Dai
Holographic multiple-input multiple-output (H-MIMO) systems represent a paradigm shift in wireless communications by enabling quasi-continuous apertures. Unlike conventional MIMO s…
Near-Field Challenges in Ultra-Wideband ISAC: Beamforming Strategies and System Insights
Yonghwi Kim, Sang-Hyun Park, Siyun Yang +3
The shift toward sixth-generation (6G) wireless networks places integrated sensing and communications (ISAC) at the core of future applications such as autonomous driving, extended…
Near-Field Wideband Beamforming for RIS Based on Fresnel Zone
Qiumo Yu, Linglong Dai
Reconfigurable intelligent surface (RIS) has emerged as a promising solution to overcome the challenges of high path loss and easy signal blockage in millimeter-wave (mmWave) and t…
Near-Field Wideband Beam Training Based on Distance-Dependent Beam Split
Tianyue Zheng, Mingyao Cui, Zidong Wu +1
Near-field beam training is essential for acquiring channel state information in 6G extremely large-scale multiple input multiple output (XL-MIMO) systems. To achieve low-overhead…
Coded Beam Training for RIS Assisted Wireless Communications
Yuhao Chen, Linglong Dai
Reconfigurable intelligent surface (RIS) is considered as one of the key technologies for future 6G communications. To fully unleash the performance of RIS, accurate channel state…