Results 31 to 40 of about 3,484 (213)
IEEE Access, 2022 Reconfigurable intelligent surface (RIS) has been proven to be a promising technology for improving the performance of future wireless systems. However, since conventional RIS can only reflect or transmit (i.e., refract) incident signals, it limits the ...
Yiru Wang +3 more
doaj +1 more source
Trusted Reconfigurable Intelligent Surface for Multi-User Quantum Key Distribution [PDF]
, 2023 peer reviewedWe consider a multi-user quantum key distribution (QKD) system based on free-space optics (FSO) in terrestrial environment. Due to obstacles in the signal path, FSO-QKD is heavily affected by decoherence and other harmful effects.
Steven Kisseleff +3 more
core +1 more source
Reconfigurable Intelligent Surface (RIS)-Aided Vehicular Networks: Their Protocols, Resource Allocation, and Performance [PDF]
IEEE Vehicular Technology Magazine, 2022 Reconfigurable intelligent surfaces (RISs) assist in paving the way for the evolution of conventional vehicular networks to autonomous driving. Having said that, the 3rd Generation Partnership Project (3GPP) faces numerous open challenges concerning the RIS-aided vehicle-to-everything (V2X) solutions of the near future.
Yuanbin Chen +4 more
openaire +2 more sources
A Review of Phase-Change Materials and Their Potential for Reconfigurable Intelligent Surfaces
Micromachines, 2023 Phase-change materials (PCMs) and metal-insulator transition (MIT) materials have the unique feature of changing their material phase through external excitations such as conductive heating, optical stimulation, or the application of electric or magnetic
Randy Matos, Nezih Pala
doaj +1 more source
, 2022 This paper evaluates the physical layer security performance of a reconfigurable intelligent surface (RIS) enabled wireless network in the presence of a passive eavesdropper.
Olakanmi Oladayo Olufemi +5 more
core +1 more source
Beamforming design for active RIS‐aided NOMA networks
IET Communications, 2023 This paper studies the beamforming design for an active reconfigurable intelligent surface (RIS) aided non‐orthogonal multiple access (NOMA) network. It aims to minimize the transmission power while satisfying the requirement of the quality of service ...
Fengming Yang, Jianxin Dai, Cunhua Pan
doaj +1 more source
, 2023 Free space optical (FSO) communication is an evolving technology that opens up the doors to use huge unlicensed bandwidth and can manifest high-speed communication.
Massoud, Yehia Mahmoud +4 more
core +1 more source
Resource Allocation Using Reconfigurable Intelligent Surface (RIS)-Assisted Wireless Networks in Industry 5.0 Scenario [PDF]
, 2022 Mobile communication networks evolved from first-generation (1G) to sixth-generation (6G) and the requirement for quality of services (QoS) and higher bandwidth increased.
Rahman, MuhibUr +7 more
core +1 more source
Cross-Tier Interference Mitigation for RIS-Assisted Heterogeneous Networks
Technologies, 2023 With the development of the next generation of mobile networks, new research challenges have emerged, and new technologies have been proposed to address them.
Abdel Nasser Soumana Hamadou +2 more
doaj +1 more source
IEEE Access, 2022 Recently, a reconfigurable intelligent surface (RIS) that provides alternative wireless propagation paths (by reflecting an electromagnetic wave from a base station in desired directions) has attracted attention as a key facilitating technology for ...
Jungi Jeong +4 more
doaj +1 more source