14 papers
A Foundation Model for Cross-Band CSI Reconstruction
Hongpu Zhang, Shu Sun, Ruifeng Gao +2
Acquiring dense high-frequency channel state information (CSI) is costly in multi-band low-altitude wireless systems because pilot resources are limited and channel dimensions chan…
Invertible Diffusion for Low-Memory Channel Gain Map Construction in Wireless Communication Networks
Ruifeng Gao, Sen Li, Jue Wang +2
Channel gain maps (CGMs) enable propagation-aware services in edge-intelligent wireless communication networks, while diffusion-based CGM construction is memory intensive for on-de…
A Unified Codebook Design for Curvature-Reconfigurable Apertures: Seamless Near to Far Field Coverage
Zhoujie You, Shu Sun, Ruifeng Gao +2
Beam training for extremely large-scale arrays with curvature-reconfigurable apertures (CuRAs) faces the critical challenge of severe, geometry-dependent angle-range coupling. Whil…
Spatial Correlation, Non-Stationarity, and Degrees of Freedom of Holographic Curvature-Reconfigurable Apertures
Liuxun Xue, Shu Sun, Ruifeng Gao +1
Low-altitude wireless platforms increasingly require lightweight, conformal, and densely sampled antenna array apertures with high array gain and spatial selectivity. However, when…
Fusion of Monostatic and Bistatic Sensing for ISAC-Enabled Low-Altitude Environment Mapping
Liu Meihui, Sun Shu, Gao Ruifeng +2
Driven by the rapid growth of the low-altitude economy, integrated sensing and communication (ISAC) technologies are essential to meet the stringent demands for reliable connectivi…
Modeling and Analysis of Land-to-Ship Maritime Wireless Channels at 5.8 GHz
Shu Sun, Yulu Guo, Meixia Tao +6
Maritime channel modeling is crucial for designing robust nearshore communication systems, yet reliable models that account for the dynamic marine environment with varying sea wave…