Author

Ahmed Alkhateeb

2 papers indexed here

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Preprint Aug 2026

Digital Twin-Aided Prescreening for User Scheduling in MU-MIMO Downlink Systems

Digital Twin User pre-Screening (DiTUS), a digital-twin (DT)-aided framework that identifies promising users before instantaneous CSI acquisition, demonstrating that DT-based prescreening preserves substantial multiuser-diversity gains by identifying strong, spatially compatible users before acquiring effective-channel...

Namhyun Kim, Mahmoud Saad Abouamer, Jeonghun Park et al. · 0 citations

#machine learning Preprint Aug 2026

Beamforming Design Via GNN in mmWave Cell-Free Massive MIMO Using Sub-6 GHz CSI

Simulation results demonstrate that the proposed sub-6 GHz-assisted GNN-based beamformer achieves competitive and often superior sum-rate performance compared to classical baselines that rely on full mmWave CSI.

Sina Tavakolian, Abolfazl Zakeri, Ahmed Alkhateeb et al. · 0 citations