Intelligent Reflecting Surfaces (IRS)-Enhanced Cooperative NOMA: A Contemporary Review [PDF]
IEEE AccessThe integration of intelligent reflecting surfaces (IRS) into cooperative non-orthogonal multiple access (NOMA) systems revolutionizes wireless networks by enhancing signal strength, mitigating interference, and optimizing spectral efficiency.
Sanjeev Sharma +4 more
doaj +4 more sources
Design and Application of Intelligent Reflecting Surface (IRS) for Beyond 5G Wireless Networks: A Review [PDF]
Sensors, 2022 The existing sub-6 GHz band is insufficient to support the bandwidth requirement of emerging data-rate-hungry applications and Internet of Things devices, requiring ultrareliable low latency communication (URLLC), thus making the migration to millimeter ...
Fred Chimzi Okogbaa +6 more
doaj +5 more sources
Intelligent reflecting surface backscatter-enabled physical layer security enhancement via deep reinforcement learning [PDF]
PeerJ Computer ScienceThis article introduces a novel strategy for wireless communication security utilizing intelligent reflecting surfaces (IRS). The IRS is strategically deployed to mitigate jamming attacks and eavesdropper threats while improving signal reception for ...
Manzoor Ahmed +7 more
doaj +3 more sources
Multi-Intelligent Reflecting Surfaces and Artificial Noise-Assisted Cell-Free Massive MIMO Against Simultaneous Jamming and Eavesdropping [PDF]
SensorsIn a cell-free massive multiple-input multiple-output (MIMO) system without cells, it is assumed that there are smart jammers and disrupters (SJDs) that attempt to interfere with and eavesdrop on the downlink communications of legitimate users.
Huazhi Hu +5 more
doaj +2 more sources
Applied Sciences, 2023 This paper proposes an intelligent reflecting surface (IRS)-assisted energy efficiency optimization algorithm to address the problem of energy efficiency (EE) degradation in high-speed rail communication systems caused by line-of-sight link blockages ...
Cuiran Li +3 more
doaj +2 more sources
Intelligent Reflecting Surfaces (IRS) Metasurface-based with Tunable Varactor Diodes for Advanced 6G Wireless Applications [PDF]
2023 29th International Conference on Telecommunications (ICT), 2023 Intelligent Reflecting Surfaces (IRSs) stand as pivotal technology for augmenting the efficiency and performance of 5G wireless networks. However, the deployment of these surfaces, especially in the Ka-band (26 GHz and beyond) for the prospective 6G ...
Malau, H, Tong, KF, Wong, KK
core +2 more sources
Performance Enhancement for B5G/6G Networks Based on Space Time Coding Schemes Assisted by Intelligent Reflecting Surfaces with Higher Modulation Orders [PDF]
SensorsIntelligent Reflecting Surfaces (IRS) and Multiple-Input Single-Output (MISO) technologies are essential in the fifth generation (5G) networks and beyond.
Mariam El-Hussien +4 more
doaj +2 more sources
Heterogeneous-IRS-Assisted Millimeter-Wave Systems: Element Position and Phase Shift Optimization [PDF]
SensorsIntelligent reflecting surfaces (IRSs) have attracted extensive attention in the design of future communication networks. However, their large number of reflecting elements still results in non-negligible power consumption and hardware costs.
Weibiao Zhao +4 more
doaj +2 more sources
Rate splitting with semantics as a generalized multi-access framework for intelligent reflecting surfaces [PDF]
Scientific ReportsThe rapid advancement of modern communication technologies necessitates the development of generalized multi-access frameworks and the continuous implementation of rate splitting, augmented with semantic awareness.
Senthil Kumar Jagatheesaperumal +4 more
doaj +2 more sources
Intelligent Reflecting Surface (IRS)-Aided Covert Wireless Communications With Delay Constraint [PDF]
IEEE Transactions on Wireless Communications, 2022 This work examines the performance gain achieved by deploying an intelligent reflecting surface (IRS) in covert communications. To this end, we formulate the joint design of the transmit power and the IRS reflection coefficients by taking into account the communication covertness for the cases with global channel state information (CSI) and without a ...
Xiaobo Zhou +4 more
openaire +2 more sources