15 citations · 30 across the 25 of their papers we have counts for
12 papers · 1 filter
Flexible Multi-Beam Synthesis and Directional Suppression Through Transmissive RIS
Rujing Xiong, Ke Yin, Jialong Lu +3
Despite extensive research on reconfigurable intelligent surfaces (RISs) in recent years, existing beamforming methods still face significant challenges in achieving flexible and r…
Metasurface-Enabled Superheterodyne Transmitter for Arbitrary-Order Modulation with Spatially Isotropic Symbol Distribution
Xuehui Dong, Miyu Feng, Chen Shao +5
Electromagnetically programmable information metasurfaces, as dynamically controllable 2D metamaterials, hold significant promise as low-profile hardware enabling passive wave cont…
Toward Wireless Localization Using Multiple Reconfigurable Intelligent Surfaces
Fuhai Wang, Tiebin Mi, Chun Wang +3
This paper investigates the capabilities and effectiveness of backward sensing centered on reconfigurable intelligent surfaces (RISs). We demonstrate that the direction of arrival…
Dreamer: Dual-RIS-aided Imager in Complementary Modes
Fuhai Wang, Yunlong Huang, Zhanbo Feng +6
Reconfigurable intelligent surfaces (RISs) have emerged as a promising auxiliary technology for radio frequency imaging. However, existing works face challenges of faint and intric…
Design and Optimization on Successive RIS-assisted Multi-hop Wireless Communications
Rujing Xiong, Jialong Lu, Jianan Zhang +4
As an emerging wireless communication technology, reconfigurable intelligent surface (RIS) has become a basic choice for providing signal coverage services in scenarios with dense…
Arbitrary Waveform Generated Metasurface: A New Paradigm for Direct Modulation and Beamforming Decoupling
Xuehui Dong, Bokai Lai, Rujing Xiong +4
Information Metasurface, also known as reconfigurable intelligent surface (RIS) has gained significant attention owing to its impressive abilities in electromagnetic (EM) wave mani…
Optimal Beamforming of RIS-Aided Wireless Communications: An Alternating Inner Product Maximization Approach
Rujing Xiong, Tiebin Mi, Jialong Lu +4
This paper investigates a general discrete -norm maximization problem, with the power enhancement at steering directions through reconfigurable intelligent surfaces (RISs)…
Multi-user ISAC through Stacked Intelligent Metasurfaces: New Algorithms and Experiments
Ziqing Wang, Hongzheng Liu, Jianan Zhang +5
This paper investigates a Stacked Intelligent Metasurfaces (SIM)-assisted Integrated Sensing and Communications (ISAC) system. An extended target model is considered, where the BS…
RISAR: RIS-assisted Human Activity Recognition with Commercial Wi-Fi Devices
Junshuo Liu, Yunlong Huang, Wei Yang +5
Human activity recognition (HAR) holds significant importance in smart homes, security, and healthcare. Existing systems face limitations because of the insufficient spatial divers…
Decentralized Uncoded Storage Elastic Computing with Heterogeneous Computation Speeds
Wenbo Huang, Xudong You, Kai Wan +2
Elasticity plays an important role in modern cloud computing systems. Elastic computing allows virtual machines (i.e., computing nodes) to be preempted when high-priority jobs aris…
Design and Prototyping of Transmissive RIS-Aided Wireless Communication
Jianan Zhang, Rujing Xiong, Junshuo Liu +2
Reconfigurable Intelligent Surfaces (RISs) exhibit promising enhancements in coverage and data rates for wireless communication systems, particularly in the context of 5G and beyon…
TRTAR: Transmissive RIS-assisted Through-the-wall Human Activity Recognition
Junshuo Liu, Yunlong Huang, Jianan Zhang +2
Device-free human activity recognition plays a pivotal role in wireless sensing. However, current systems often fail to accommodate signal transmission through walls or necessitate…