arxiveess.SP2026-07-17
Scalable Attention for 5G NR Channel Estimation
Mahdi Abdollahpour, Marco Bertuletti, Yichao Zhang, Luca Benini, Alessandro Vanelli-Coralli
Attention-based neural estimators achieve strong channel-estimation accuracy, but the computational cost of global attention over the time-frequency resource grid grows quadratically with the number of subcarriers, and these estimators are typically tied to a single resource allo…