Results 11 to 20 of about 1,622,378 (238)

Coded environments: data-driven indoor localisation with reconfigurable intelligent surfaces [PDF]

Communications Engineering
Reconfigurable Intelligent Surfaces have recently emerged as a revolutionary next-generation wireless networks paradigm that harnesses engineered electromagnetic environments to reshape radio wave propagation.
Syed Tariq Shah, Mahmoud A. Shawky, Jalil ur Rehman Kazim, Ahmad Taha, Shuja Ansari, Syed Faraz Hasan, Muhammad Ali Imran, Qammer H. Abbasi   +7 more
doaj   +2 more sources

Dynamic edge computing empowered by reconfigurable intelligent surfaces [PDF]

EURASIP Journal on Wireless Communications and Networking, 2022
In this paper, we propose a novel algorithm for energy-efficient low-latency dynamic mobile edge computing (MEC), in the context of beyond 5G networks endowed with reconfigurable intelligent surfaces (RISs).
Paolo Di Lorenzo, Mattia Merluzzi, Emilio Calvanese Strinati, Sergio Barbarossa   +3 more
doaj   +2 more sources

A survey on reconfigurable intelligent surfaces: Wireless communication perspective

IET Communications, 2023
Using reconfigurable intelligent surfaces (RISs) to improve the coverage and the data rate of future wireless networks is a viable option. These surfaces are constituted of a significant number of passive and nearly passive components that interact with ...
Saber Hassouna, Muhammad Ali Jamshed, James Rains, Jalil ur Rehman Kazim, Masood Ur Rehman, Mohammad Abualhayja, Lina Mohjazi, Tei Jun Cui, Muhammad Ali Imran, Qammer H. Abbasi   +9 more
doaj   +2 more sources

Time vs. Unit Cell Splitting for Autonomous Reconfigurable Intelligent Surfaces [PDF]

, 2022
In this work, we propose a time- and a unit cell-splitting protocol for supplying the energy needs of reconfigurable intelligent surfaces (RISs) through wireless energy harvesting (EH) from information signals. We first compute the RIS energy consumption
Abadal Cavallé, Sergi, Boulogeorgos, Alexandros-Apostolos A., Mesodiakaki, Agapi, Abadal, Sergi, NTONTIN, Konstantinos, CHATZINOTAS, Symeon, Chatzinotas, Simeon, ABDULLAH, Zaid, Boulogeorgos, Alexandros Apostolos A.   +8 more
core   +2 more sources

Beyond Diagonal Reconfigurable Intelligent Surfaces: From Transmitting and Reflecting Modes to Single-, Group-, and Fully-Connected Architectures [PDF]

IEEE Transactions on Wireless Communications, 2022
Reconfigurable intelligent surfaces (RISs) are envisioned as a promising technology for future wireless communications. With various hardware realizations, RISs can work under different modes (reflective/transmissive/hybrid) or have different ...
Hongyu Li, Shanpu Shen, B. Clerckx
semanticscholar   +1 more source

Path Loss Modeling and Measurements for Reconfigurable Intelligent Surfaces in the Millimeter-Wave Frequency Band [PDF]

IEEE Transactions on Communications, 2021
Reconfigurable intelligent surfaces (RISs) provide an interface between the electromagnetic world of wireless propagation environments and the digital world of information science.
Wan-Kai Tang, Xiang-Yu Chen, Ming-Zheng Chen, J. Dai, Yu Han, Marco Renzo, Shi Jin, Q. Cheng, Tie J. Cui   +8 more
semanticscholar   +1 more source

Reconfigurable Intelligent Surfaces: Principles and Opportunities [PDF]

IEEE Communications Surveys and Tutorials, 2020
Reconfigurable intelligent surfaces (RISs), also known as intelligent reflecting surfaces (IRSs), or large intelligent surfaces (LISs),1 have received significant attention for their potential to enhance the capacity and coverage of wireless networks by ...
Yuan-Wei Liu, Xiao Liu, Xi-Dong Mu, Tianwei Hou, Jiaqi Xu, Zhijin Qin, M. di Renzo, N. Al-Dhahir   +7 more
semanticscholar   +1 more source

Autonomous Reconfigurable Intelligent Surfaces Through Wireless Energy Harvesting [PDF]

, 2022
In this paper, we examine the potential for a reconfigurable intelligent surface (RIS) to be powered by energy harvested from information signals. This feature might be key to reap the benefits of RIS technology's lower power consumption compared to ...
Abadal Cavallé, Sergi, Martins, Wallace Alves, Alexiou, Angeliki, Lazarakis, Fotis, Abadal, Sergi, ALVES MARTINS, Wallace, Boulogeorgos, Apostolos-Alexandros A., Selimis, Dimitrios, NTONTIN, Konstantinos, Björnson, Emil, CHATZINOTAS, Symeon, KISSELEFF, Steven, Boulogeorgos, Alexandros Apostolos A.   +12 more
core   +1 more source

Localization via Multiple Reconfigurable Intelligent Surfaces Equipped with Single Receive RF Chains [PDF]

, 2022
The extra degrees of freedom resulting from the consideration of Reconfigurable Intelligent Surfaces (RISs) for smart signal propagation can be exploited for high accuracy localization and tracking.
Alexandropoulos, G. C.,, Vinieratou, Ioanna,, Wymeersch, Henk,, Wymeersch, Henk, Vinieratou, Ioanna, Alexandropoulos, G. C.   +5 more
core   +1 more source

Reconfigurable Intelligent Surface Optimal Placement in Millimeter-Wave Networks [PDF]

, 2021
peer reviewedThis work discusses the optimal reconfigurable intelligent surface placement in highly-directional millimeter wave links. In particular, we present a novel system model that takes into account the relationship between the transmission beam ...
Boulogeorgos, Alexandros-Apostolos A., Alexiou, Angeliki, Lazarakis, Fotis, Selimis, Dimitrios, NTONTIN, Konstantinos, CHATZINOTAS, Symeon   +5 more
core   +1 more source