6 papers
6D Movable Metasurface (6DMM) in Downlink NOMA Transmissions
Li-Hsiang Shen
This letter proposes a novel six-dimensional movable metasurface (6DMM)-assisted downlink non-orthogonal multiple access (NOMA) system, in which a conventional base station (BS) eq…
Liquid Intelligent Metasurface for Fluid Antennas-Assisted Networks
Li-Hsiang Shen
This paper proposes a novel liquid intelligent metasurface (LIM)-assisted downlink multi-user multiple-input single-output (MISO) system, wherein both the base station (BS) and the…
Joint Active and Passive Beamforming for Energy-Efficient STARS with Quantization and Element Selection in ISAC Systems
Li-Hsiang Shen, Yi-Hsuan Chiu
This paper investigates a simultaneously transmitting and reflecting reconfigurable intelligent surface (STARS)-aided integrated sensing and communication (ISAC) systems in support…
Multi-Functional RIS-Enabled in SAGIN for IoT: A Hybrid Deep Reinforcement Learning Approach with Compressed Twin-Models
Li-Hsiang Shen, Jyun-Jhe Huang
A space-air-ground integrated network (SAGIN) for Internet of Things (IoT) network architecture is investigated, empowered by multi-functional reconfigurable intelligent surfaces (…
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…
RIS-Aided Fluid Antenna Array-Mounted UAV Networks
Li-Hsiang Shen, Yi-Hsuan Chiu
This paper investigates reconfigurable intelligent surface (RIS)-assisted unmanned aerial vehicle (UAV) downlink networks with fluid antennas (FA), where RIS enables non-line-of-si…