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eess.SP2026
A Novel Near-Field Dictionary Design for Hybrid MIMO with Uniform Planar Arrays
Luca Antonelli, Antonio Alberto D Amico, Luca Sanguinetti
Near-field ultra-massive MIMO (U-MIMO) systems provide enhanced spatial resolution but present challenges for channel estimation, particularly when hybrid architectures are employe…
eess.SP2026
An Enhanced Polar-Domain Dictionary Design for Elevated BSs in Near-Field U-MIMO
Luca Antonelli, Antonio Alberto D'Amico, Luca Sanguinetti
Near-field U-MIMO communications require carefully optimized sampling grids in both angular and distance domains. However, most existing grid design methods neglect the influence o…