Results 11 to 20 of about 332,498 (295)

Active Reconfigurable Intelligent Surface Aided Wireless Communications

IEEE Transactions on Wireless Communications, 2021
Reconfigurable Intelligent Surface (RIS) is a promising solution to reconfigure the wireless environment in a controllable way. To compensate for the double-fading attenuation in the RIS-aided link, a large number of passive reflecting elements (REs) are
Larsson, Erik G., Liang, Ying-Chang, Long, Ruizhe, Pei, Yiyang   +3 more
core   +7 more sources

Enhancing active reconfigurable intelligent surface

Intelligent and Converged Networks, 2022
A Reconfigurable Intelligent Surface (RIS) panel comprises many independent Reflective Elements (REs). One possible way to implement an RIS is to use a binary passive load impedance connected to an antenna element to achieve the modulation of reflected ...
Muhammad I. Khalil
doaj   +2 more sources

Reconfigurable Intelligent Surface-Empowered MIMO Systems [PDF]

IEEE Systems Journal, 2020
Reconfigurable intelligent surface (RIS)-assisted communications appear as a promising candidate for future wireless systems due to its attractive advantages in terms of implementation cost and end-to-end system performance.
Basar, Ertugrul, Khaleel, Aymen
core   +6 more sources

On Propagation Characteristics of Reconfigurable Surface Wave Platform: Simulation and Experimental Verification [PDF]

arXiv, 2023
Reconfigurable intelligent surface (RIS) as a smart reflector is revolutionizing research for next-generation wireless communications. Complementing this is a concept of using RIS as an efficient propagation medium for potentially superior path loss ...
Chae, C. B., Chan, C. H., Chu, Z., Tong, K. F., Wong, K. K.   +4 more
core   +1 more source

Architecture for sub-100 ms liquid crystal reconfigurable intelligent surface based on defected delay lines [PDF]

Commun Eng
Reconfigurable intelligent surfaces, comprised of passive tunable elements, are emerging as an essential device for upcoming millimeter wave and terahertz wireless systems. A fundamental aspect of the device involves the tuning technology used to achieve
Neuder R, Späth M, Schüßler M, Jiménez-Sáez A.   +3 more
europepmc   +2 more sources

Reconfigurable Intelligent Surface Aided NOMA Networks [PDF]

IEEE Journal on Selected Areas in Communications, 2019
Reconfigurable intelligent surfaces (RISs) constitute a promising performance enhancement for next-generation (NG) wireless networks in terms of enhancing both their spectrum efficiency (SE) and energy efficiency (EE).
Chen, Yue, Fellow, Hanzo, Lajos, Hou, Tianwei, IEEE, IEEE, IEEE, IEEE, Liu, Yuanwei, Member, Senior, Member, Senior, Member, Student, Song, Zhengyu, Sun, Xin   +13 more
core   +5 more sources

Study and Design of Reconfigurable Intelligent Surfaces [PDF]

arXiv, 2022
In this thesis, we introduce the fundamental equations behind the estimation of the link budget in a communications channel, highlighting the key limitations of conventional systems. Furthermore, we investigate the use of reconfigurable intelligent surfaces as a modern method of overcoming obstruction losses, while making use of numerical methods and ...
arxiv   +3 more sources

A filtering reconfigurable intelligent surface for interference-free wireless communications. [PDF]

Nat Commun
The powerful capability of reconfigurable intelligent surfaces (RISs) in tailoring electromagnetic waves and fields has put them under the spotlight in wireless communications.
Liang JC, Zhang L, Luo Z, Jiang RZ, Cheng ZW, Wang SR, Sun MK, Jin S, Cheng Q, Cui TJ.   +9 more
europepmc   +2 more sources

Wireless Communications Through Reconfigurable Intelligent Surfaces [PDF]

IEEE Access, 2019
The future of mobile communications looks exciting with the potential new use cases and challenging requirements of future 6th generation (6G) and beyond wireless networks. Since the beginning of the modern era of wireless communications, the propagation
Ertugrul Basar, Marco Di Renzo, Julien De Rosny, Merouane Debbah, Mohamed-Slim Alouini, Rui Zhang   +5 more
doaj   +7 more sources

Near Field Optimization Algorithm for Reconfigurable Intelligent Surface [PDF]

arXiv, 2023
Reconfigurable intelligent surface (RIS) is a type of wireless communication technology that uses a reconfigurable surface, such as a wall or building that is able to adjust its properties by an integrated optimization algorithm in order to optimize the signal propagation for a given communication scenario.
Colella, E., Bastianelli, L., Moglie, F., Primiani, V. Mariani   +3 more
arxiv   +3 more sources