Preprint
Oct 2026
Rethinking Channel Estimation for Fluid Antenna Systems: A Physics-Informed Operator Learning
Fluid antenna systems (FAS) leverage continuous reconfigurable apertures to transcend the spatial limits of fixed-position arrays, yet acquiring full-aperture channel state information (CSI) from sparse observations remains a formidable bottleneck. In this paper, we establish a continuous-field formulation for FAS by r...
Zi-Xin Wang, Li-Zhong Zheng, Yuan-Ming Shi et al.
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