Fair Beam Synthesis and Suppression Achieved in Transmissive Reconfigurable Intelligent Surfaces through Constrained Optimization
This research introduces a novel method for achieving precise beamforming with Transmissive Reconfigurable Intelligent Surfaces (RIS) by solving a constrained Max-min optimization problem, enabling simultaneous signal enhancement at desired locations and suppression in undesired directions.
LIQUIRIS: Optimizing Beam Switching Time in Liquid Crystal Reconfigurable Intelligent Surfaces (RIS) for Mobile Networks
LIQUIRIS leverages the physical properties of liquid crystals to optimize beam switching time in RIS, offering a low-cost, low-energy alternative to semiconductor-based solutions for enhanced wireless communication.
再構成可能な知能メタサーフェスを用いたMassive MIMO性能へのアプローチ：多数のアンテナは不要に
多数のアンテナを用いる従来のmMIMOシステムに匹敵する性能を、再構成可能な知能メタサーフェス（RIS）を用いることで、より少ないアンテナ数と低いハードウェア複雑さで実現できる可能性を示唆している。
Approaching Massive MIMO Performance with Reconfigurable Intelligent Surfaces: Reducing Antenna Requirements for Enhanced Wireless Communication
Reconfigurable Intelligent Base Stations (RIBS), incorporating Reconfigurable Intelligent Surfaces (RIS), can achieve comparable performance to massive MIMO systems with significantly fewer antennas, offering a cost-effective solution for enhanced wireless communication.
4スイッチクロス型RISの研究と革新的な設計例
本稿では、電磁信号の位相や偏波を動的に制御できる4スイッチクロス型RISの動作原理、設計事例、そして新たな設計手法を提案し、その有用性と将来性を示している。
Four-Switch Cross-Shaped Reconfigurable Intelligent Surface (RIS): A Comprehensive Study and Novel Design for Bit Reconfigurability
This paper explores the working principles and design variations of four-switch cross-shaped Reconfigurable Intelligent Surfaces (RIS), proposing a novel design that achieves both ultra-wideband 1-bit and narrowband 2-bit functionality, enhancing performance and design flexibility for applications like beam scanning.
Modeling, Design, and Verification of a 2-Bit Active Transmissive Reconfigurable Intelligent Surface (RIS) for the 2.6 GHz Frequency Band
This research paper presents the design and validation of a novel 2-bit active transmissive RIS that amplifies and phase-shifts signals at 2.6 GHz, addressing the double fading effect in traditional RIS and showcasing its potential for enhancing wireless communication systems.
Capacity Region and Large System Analysis of MIMO MAC Systems Enhanced by Reconfigurable Intelligent Surfaces
Multiple-Input Multiple-Output Multiple Access Channel (MIMO-MAC) systems can achieve significant performance gains by leveraging multiple distributed Reconfigurable Intelligent Surfaces (RISs), especially in environments with small angle spread, but these gains diminish as the number of transmitting users increases.
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