Preprint
Jul 2026
Toward Alias-Free Channel Extrapolation in Upper Mid-Band Systems: A Spatial-Frequency-Temporal Tensor Learning Approach
A tensor-structure-aware axial-attention neural network (TANN), which integrates axis-wise attention with a lightweight multi-scale CNN-based gating module to incorporate support priors for ADD-domain de-aliasing, and yields a unified model that generalizes across pilot configurations without retraining.
Jia-Wei Zhuang, Hong-Wei Hou, Ya-Fei Wang et al.
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