Author

Trinh Van Chien

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Jul 2026

Joint Load Balancing and Transmit Power Control for Energy Efficiency Maximization in the Satellite-Cell-Free Massive MIMO Uplink

This work investigates a hybrid satellite-cell-free Massive MIMO system, where multiple low-Earth-orbit (LEO) satellites jointly serve users in unison with terrestrial access points (APs) under realistic imperfect channel state information and practical user association constraints.

Ngo Tran Anh Thu, Lo Hai Long, Le Duc Anh Vu et al. · IEEE Transactions on Communi... · 0 citations

Preprint Jun 2026

Multi-Timescale Latent-Action DRL for Joint Optimization in Edge-Cloud Networks

A two-timescale multi-layer deep reinforcement learning framework with a latent action space (2T-MDRL-LA) to jointly optimize service placement, user association, computational delegation, task offloading, and user transmit power and achieves near-optimal performance compared to branch-and-bound solutions.

V. Son, Van-Dinh Nguyen, Ngoc Hung Nguyen et al. · 0 citations