3 papers
eess.SP2026
FSIM: Fluid Element Stacked Intelligent Metasurface for Multiuser Downlink Networks
Tsung-Yu Wei, Li-Hsiang Shen, Kai-Ten Feng +1
A fluid element (FE)-aided stacked intelligent metasurface (FSIM) for multiple-input single-output (MISO) communication system is investigated, where a multi-antenna base station (…
cs.LG2025
Federated Deep Reinforcement Learning for Energy Efficient Multi-Functional RIS-Assisted Low-Earth Orbit Networks
Li-Hsiang Shen, Jyun-Jhe Huang, Kai-Ten Feng +2
In this paper, a novel network architecture that deploys the multi-functional reconfigurable intelligent surface (MF-RIS) in low-Earth orbit (LEO) is proposed. Unlike traditional R…
cs.IT2024
Energy Efficient Beamforming Training in Terahertz Communication Systems
Li-Hsiang Shen, Kai-Ten Feng, Lie-Liang Yang
Terahertz (THz) enables promising Tbps-level wireless transmission thanks to its prospect of ultra-huge spectrum utilization and narrow beamforming in the next sixth-generation (6G…