4 papers
BeamVLM for Low-altitude Economy: Generative Beam Prediction via Vision-language Models
Chenran Kou, Changsheng You, Mingjiang Wu +3
For low-altitude economy (LAE), fast and accurate beam prediction between high-mobility unmanned aerial vehicles (UAVs) and ground base stations is of paramount importance, which e…
Low-complexity Design for Beam Coverage in Near-field and Far-field: A Fourier Transform Approach
Chao Zhou, Changsheng You, Cong Zhou +3
In this paper, we study efficient beam coverage design for multi-antenna systems in both far-field and near-field cases. To reduce the computational complexity of existing sampling…
Near-field Physical Layer Security: Robust Beamforming under Location Uncertainty
Chao Zhou, Changsheng You, Cong Zhou +2
In this paper, we study robust beamforming design for near-field physical-layer-security (PLS) systems, where a base station (BS) equipped with an extremely large-scale array (XL-a…
Frequency-switching Array Enhanced Physical-Layer Security in Terahertz Bands: A Movable Antenna Perspective
Cong Zhou, Changsheng You, Chao Zhou +4
In this paper, we propose a new frequency-switching array (FSA) to enhance the physical-layer security (PLS) in the presence of multiple eavesdroppers (Eves), where the carrier fre…