Author

Mei-Hui Liu

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Preprint Sep 2026

Online Material-Labeled Environment Reconstruction via Bayesian Multipath Attribution for Low-Altitude ISAC

Environment reconstruction for low-altitude integrated sensing and communications (ISAC) has largely focused on geometry-centric maps, overlooking material-dependent propagation effects. Material-labeled reconstruction is therefore a key step toward propagation-aware mapping, enabling more physically grounded channel p...

Mei-Hui Liu, Shu Sun, Rui-Feng Gao et al. · 0 citations

Open access Jul 2026

Hierarchical Beam Training and Codebook Design for Movable Antenna-Assisted Near-Field Systems

As sixth-generation (6G) communication systems evolve toward higher frequency bands and larger array apertures, the near-field range expands rapidly, making near-field channel estimation increasingly important and challenging. Beam training has been recognized as an effective approach for channel state information (CSI...

Mei-Hui Liu, Qian Zhang, Xue-Jun Cheng et al. · International Symposium on C... · 0 citations

Open access Aug 2026

Joint Power Allocation and Phase-Shift Design for Beyond-Diagonal Stacked Intelligent Metasurfaces-Aided ISAC Systems

Stacked intelligent metasurfaces (SIM) provide an efficient architecture for integrated sensing and communication (ISAC) with few radio-frequency (RF) chains. However, diagonal SIM provide only element-wise phase control, so balancing multiuser communication and sensing performance may require additional layers. In thi...

Y. Jiao, Qian Zhang, Xue-Jun Cheng et al. · IEEE Wireless Communications... · 0 citations