Preprint
Sep 2026
Utility-Aware Adaptive Downlink DM-RS Allocation from Uplink CSI for Lightweight O-DU dApps
Adaptive demodulation reference signal (DM-RS) placement in 5G New Radio (NR) trades pilot overhead against channel-tracking robustness, making a single static density suboptimal across heterogeneous mobility and propagation regimes. This paper studies a lightweight per-UE controller intended for O-DU-side distributed...
Se-Hong Min
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