IRS-aided Near-field Communication: Prospects and Challenges with Codebook Approach

R Hibi, H Hashida, Y Kawamoto, N Kato - arXiv preprint arXiv:2410.12664, 2024 - arxiv.org
Intelligent reflecting surfaces (IRSs) are gaining attention as a low-cost solution to the
coverage reduction in high-frequency bands used in next-generation communications. IRSs …

Multi-objective Optimization of Wireless Powered Communication Networks Assisted by Intelligent Reflecting Surface Based on Multi-agent Reinforcement Learning

X Guan, J Xue, H Jiang, G Tian - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Intelligent reflecting surface (IRS) is expected to be an important enabling technology for
future wireless communication networks due to its capacity for reconfiguring wireless …

Optimization and Performance of Metamaterial-Based Electromagnetic Scattering Sheet for Coverage Improvement in 28 GHz Band

Y Murakami, J Chakarothai, L Hamada, K Fujii - IEEE Access, 2024 - ieeexplore.ieee.org
Fifth generation (5G) mobile communication systems have been deployed in the millimeter
wave (mmWave) band. Since electromagnetic (EM) waves in this band exhibit high …

毫米波信道中波束成形矢量的波束宽度

楼斌剑, 王海泉, 黄怡, 李紫薇, 俞芸芸 - 电信科学, 2022 - infocomm-journal.com
波束成形矢量技术能够集中所发送的能量于某一指定区域, 从而提高系统性能, 是5G
的核心技术之一. 但正是由于能量被集中这一特点, 信道的任何变化都可能会使接收方越出此 …

Joint Wide Illumination and Null Insertion Design in RIS-Assisted System

X Lin, Z Zhou, L Zhang, A Tukmanov… - 2024 18th European …, 2024 - ieeexplore.ieee.org
In this paper, we focus on reconfigurable intelligent surface (RIS)-aided joint wide
illumination and null insertion design. This design can be applied in cellular networks, broad …

Dual-polarized single-layer reflectarray as passive reflecting surface for 5G applications

F Venneri, S Costanzo - 2024 International Conference on …, 2024 - ieeexplore.ieee.org
A single layer reflectarray configuration is investigated to achieve a dual-polarization
operation mode, at millimetre-wave frequencies. The reflectarray cell is proposed as a viable …

Design and optimization of reconfigurable intelligent surfaces for enhanced wireless communication systems

X Lin - 2024 - theses.gla.ac.uk
Reconfigurable intelligent surface (RIS) has been identified as a promising disruptive
innovation to realize a faster, safer and more efficient communication system in the coming …

Intelligent reflective surfaces for multistatic radar networks

T Dallmann - 2023 24th International Radar Symposium (IRS), 2023 - ieeexplore.ieee.org
Radar networks promise more reliable detection of radar targets compared to monostatic
radars, but require a large number of transmitters and receivers. In this paper, the use of …