Author

Kin-Fai Tong

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Preprint Aug 2026

Electromagnetic Twin: Completing the Wireless World from Sparse Channel Evidence

Acquiring dense channel information over many locations and beams incurs considerable pilot and processing overhead. Radio maps and channel knowledge maps (CKMs) reduce this overhead by reusing site-specific channel information, but their contents must be refreshed when new measurements or environmental observations be...

Tuo Wu, Jie Tang, Kang-Da Zhi et al. · 0 citations

Preprint Aug 2026

CSI Reconstruction in Fluid Antenna Systems Without Spatial Covariance Priors

Fluid antenna systems (FASs) exploit many candidate ports for spatial diversity, but hardware constraints allow channel observations at only a few active ports. Whether full-port CSI can be recovered without pre-acquired channel statistics remains open. Under the Clarke isotropic scattering model, we show that the chan...

Zhen-Tian Zhang, Kai-Tao Meng, Tuo Wu et al. · 0 citations