4 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…
Diffuse scattering measurements and mechanism analysis at 8, 12, and 28 GHz for typical building surfaces
Tongjia Zhang, Shu Sun, Meixia Tao +2
This study investigates the fundamental diffuse scattering mechanisms from three typical building wall surfaces, conducting measurements and model parameterization at 28 GHz and tw…
Directional Measurements and Analysis for FR3 Low-Altitude Channels in a Campus Environment
Yulu Guo, Tongjia Zhang, Xiangwen Gu +3
In this paper, we present detailed low-altitude channel measurements at the FR3 band in an outdoor campus environment. Using a time-domain channel sounder system, we conduct two ty…
Measurement and Analysis of Scattering From Building Surfaces at Millimeter-Wave Frequency
Yulu Guo, Tongjia Zhang, Shu Sun +2
In future air-to-ground integrated networks, the scattering effects from ground-based scatterers, such as buildings, cannot be neglected in millimeter-wave and higher frequency ban…