Efficient Two-Level Block-Structured Sparse Bayesian Learning-Based Channel Estimation for RIS-Assisted MIMO IoT Systems
Reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) has
recently emerged as a promising candidate to improve the energy and spectral efficiency of …
recently emerged as a promising candidate to improve the energy and spectral efficiency of …
Defensive Reconfigurable Intelligent Surface (D-RIS) Based on Non-Reciprocal Channel Links
K Chen-Hu, P Popovski - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
A reconfigurable intelligent surface (RIS) is commonly made of low-cost passive and
reflective meta-materials with excellent beam steering capabilities. It is applied to enhance …
reflective meta-materials with excellent beam steering capabilities. It is applied to enhance …
Exploitation of Defensive Frequency Shifting-RIS against RIS-in-the-Middle (RITM) Attack
KC Hu, P Popovski - IEEE Global Communications Conference, 2024 - vbn.aau.dk
The novel frequency-shifting reconfigurable intelligent surface (FS-RIS) is built by a new
generation of meta-materials, which can perform an operation that changes the frequency …
generation of meta-materials, which can perform an operation that changes the frequency …
TSDSI Standards Driven Implementation of Smart Radio Environment
This paper presents a prototype implementation of a smart radio environment (SRE) based
communication system. A reflecting plate, reconfigurable intelligent surface (RIS) is placed …
communication system. A reflecting plate, reconfigurable intelligent surface (RIS) is placed …
Deep Reinforcement Algorithms in RIS-Empowered Wireless Communication Systems
TDN Ngoc - Authorea Preprints, 2024 - advance.sagepub.com
Reconfigurable intelligent surfaces (RIS) is a promising technology in the evolution towards
Sixth Generation system networks (6G). They are energy-efficient, can enhance overall …
Sixth Generation system networks (6G). They are energy-efficient, can enhance overall …