Results 41 to 50 of about 5,257 (262)

RIS Assisted Anti-Jamming in Next-Generation Wireless Communication Networks: A Survey of Threats, Solutions, and Research Challenges

IEEE Open Journal of the Communications Society
Rapid growth in wireless data traffic and the increasing demand for secure, low-latency communication have driven research toward next-generation (6G) technology, which aims to provide ubiquitous, secure wireless connectivity.
Zain Ul Abideen Tariq, Emna Baccour, Aiman Erbad, Mounir Hamdi   +3 more
doaj   +1 more source

Line-of-Sight MIMO via Intelligent Reflecting Surface

IEEE Transactions on Wireless Communications, 2023
This paper deals with line-of-sight (LOS) MIMO communication via an intelligent reflecting surface (IRS). It is shown that the number of spatial degrees of freedom (DOF) afforded by this setting grows in proportion with the IRS aperture, as opposed to being dictated by the transmit and receive apertures; this buttresses the interest in IRS deployments ...
Heedong Do, Namyoon Lee, Angel Lozano
openaire   +2 more sources

Intelligent Reflecting Surface–UAV Systems in the Internet of Things Network: A Survey

IEEE Access, 2023
Intelligent reflecting surfaces (IRSs) and unmanned aerial vehicles (UAVs) are used in Internet of Things (IoT) networks to reduce costs, maximize energy efficiency, and provide a large coverage area through a flexible base station.
Sarah A. Alsarayreh, Nurul Asyikin Mohamed Radzi, Ammar Ahmed Alkahtani, Kaiyisah Hanis Mohd Azmi   +3 more
doaj   +1 more source

A Survey on RIS Advances in Terahertz Communications: Emerging Paradigms and Research Frontiers

IEEE Access
Communication at terahertz (THz) frequencies has emerged as a potential answer to the challenge of providing massive capacity and ultra-high data speeds for 6G wireless networks.
Manzoor Ahmed, Abdul Wahid, Wali Ullah Khan, Feroz Khan, Asim Ihsan, Zain Ali, Khaled M. Rabie, Thokozani Shongwe, Zhu Han   +8 more
doaj   +1 more source

Smart and Secure Wireless Communications via Reflecting Intelligent Surfaces: A Short Survey

IEEE Open Journal of the Communications Society, 2020
With the emergence of the Internet of Things (IoT) technology, wireless connectivity should be more ubiquitous than ever. In fact, the availability of wireless connection everywhere comes with security threats that, unfortunately, cannot be handled by ...
Abdullateef Almohamad, Anas M. Tahir, Ayman Al-Kababji, Haji M. Furqan, Tamer Khattab, Mazen O. Hasna, Huseyin Arslan   +6 more
doaj   +1 more source

Reconfigurable Intelligent Surface-Aided Single-Input Single-Output K-Complex Symbol Golden Codeword-Based Modulation

IEEE Access, 2021
Small reconfigurable intelligent surfaces (RISs) have greater potential for flexibility and ubiquity compared to large RISs. In the literature, the theoretical average bit error probability (ABEP) of a phase-adjustable element access-point-based RIS (AP ...
Narushan Pillay, Hongjun Xu
doaj   +1 more source

Joint Beamforming and Trajectory Optimization for Intelligent Reflecting Surfaces-Assisted UAV Communications

IEEE Access, 2020
Unmanned aerial vehicle (UAV) and intelligent reflecting surface (IRS) are anticipated to be widely applied for improving the spectrum and energy efficiency in the forthcoming wireless communication systems.
Linghui Ge, Peihao Dong, Hua Zhang, Jun-Bo Wang, Xiaohu You   +4 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

WiFi-based Respiration Detection Aided by Intelligent Reflecting Surfaces

Leida xuebao
Since 2010, the utilization of commercial WiFi devices for contact-free respiration monitoring has garnered significant attention. However, existing WiFi-based respiration detection methods are susceptible to constraints imposed by hardware limitations ...
Yun WU, Dongheng ZHANG, Ganlin ZHANG, Xuecheng XIE, Fengquan ZHAN, Yan CHEN   +5 more
doaj   +1 more source

Intelligent Reflecting Surface Assisted Localization: Opportunities and Challenges

Electronics, 2022
Future generation communication systems are aiming to provide a tremendous high data rate with low-latency high reliable and three-dimensional coverage. To achieve such a challenging goal, it is required to have very precise location information related to the mobile terminal.
Samarendra Nath Sur, Arun Kumar Singh, Debdatta Kandar, Adão Silva, Nhan Duc Nguyen   +4 more
openaire   +2 more sources