Author

Trong-Dai Hoang

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Preprint Sep 2026

OTFS-Enabled Delayed SINR-Feedback Power Control for Reliable and Fair High-Mobility UAV Communications

Simulations show that the effective SINR of OTFS changes 37.8% less per frame than that of orthogonal frequency division multiplexing (OFDM) at 70 m/s under the same numerology, and that the waveform contribution to the usefulness of stale SINR feedback increases with mobility.

T. Van Le, Luong Cong Nguyen, Trong-Dai Hoang et al. · 0 citations

Review Aug 2026

Hybrid Beamforming in Non-Terrestrial Networks: Architectures, Design Challenges, and Opportunities

A systematic review of HBF techniques for NTN systems, with emphasis on LEO satellite and UAV communications, and introduces common HBF architectures, signal models, channel representations, analog and digital precoder designs, and learning-aided approaches that form the shared technical foundation of existing works.

T. Van Le, Luong Cong Nguyen, H. T. Nguyen et al. · 0 citations

2026

Deficit-Aware Randomized User Grouping for Fair Near-Field Energy-Splitting STAR-RIS Systems

Near-field simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) systems enable full-space coverage, but dense multiuser operation requires active-user grouping under practical stream or RF-chain constraints. Gain-based or proportional-fair scheduling may over-serve strong users, whil...

T. Van Le, Trong-Dai Hoang · IEEE Wireless Communications... · 0 citations