Author

H. T. Nguyen

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Open access Aug 2026

Minimum-Phase Preserving Balanced Truncation with Data-Driven Order Scoring

This paper investigates the problem of model-order reduction for linear systems arising from minimum-phase circuits and filters, where stability and frequency characteristics must be preserved. The MPPBT framework uses a Riccati–Lyapunov Gramian pair and constructs a balancing transformation with the sequence of MPPBT...

Thang Ngoc Pham, H. T. Nguyen, H. Vu et al. · Applied Sciences · 0 citations

Open access Aug 2026

Scalable RIS-aided hybrid beamforming for mmWave systems enables multiple sub-array architectures: A Geometric Mean Approach

This paper investigates a reconfigurable intelligent surface (RIS)-aided hybrid beamforming (HBF) framework for downlink multi-user millimeter-wave (mmWave) systems operating under practical hardware constraints. Given the severe path-loss disparity and blockage sensitivity inherent in mmWave propagation, RIS-assisted...

H. M. Tran, T. V. Dinh, H. T. Nguyen et al. · PLoS ONE · 0 citations

Conference Jul 2026

DRL-Based Joint Beamforming and Surface Morphing for FIM-Enabled ISAC Systems

In this paper, we investigate the sum rate maximization problem for integrated sensing and communication (ISAC) systems enabled by a flexible intelligent metasurface (FIM) deployed at the base station. By enabling element movement through surface morphing, the FIM introduces additional spatial degrees of freedom that c...

Ho-Ang T. Hung, H. H. Nguyen, Huy T. Nguyen et al. · IEEE International Conferenc... · 0 citations