Results 21 to 30 of about 10,047 (146)

Learning-Based IRS-Assisted Secure Transmission for Mine IoTs

Sensors, 2023
Mine Internet of Things (MIoT) devices in intelligent mines often face substantial signal attenuation due to challenging operating conditions.
Minghui Min, Jiayang Xiao, Peng Zhang, Jinling Song, Shiyin Li   +4 more
doaj   +1 more source

Downlink and Uplink Intelligent Reflecting Surface Aided Networks: NOMA and OMA

, 2021
Intelligent reflecting surfaces (IRSs) are envisioned to provide reconfigurable wireless environments for future communication networks. In this paper, both downlink and uplink IRS-aided non-orthogonal multiple access (NOMA) and orthogonal multiple ...
Cheng, Yanyu, Li, Kwok Hung, Liu, Yuanwei, Poor, H. Vincent, Teh, Kah Chan   +4 more
core   +1 more source

Intelligent Reflecting Surface Assisted Anti-Jamming Communications Based on Reinforcement Learning [PDF]

, 2020
Malicious jamming launched by smart jammer, which attacks legitimate transmissions has been regarded as one of the critical security challenges in wireless communications.
Niyato, Dusit, Secci, Stefano, Tornatore, Massimo, Wu, Qingqing, Xiong, Zehui, Yang, Helin, Zhao, Jun   +6 more
core   +2 more sources

Performance analysis of secure intelligent reflecting surface assisted ground to unmanned aerial vehicle transmission

IET Communications, 2023
The authors propose a secure intelligent reflecting surface (IRS) assisted transmission system in the presence of a ground eavesdropper, where the source in the ground transmits confidential information to unmanned aerial vehicle (UAV), IRS is deployed ...
Shen Yi, Pan Zhiwen, Wang Bin, Liu Nan, You Xiaohu   +4 more
doaj   +1 more source

Survey of physical layer security of intelligent reflecting surface-assisted wireless communication systems

Tongxin xuebao, 2022
To meet the demand of high spectrum and energy efficiency in future wireless communication systems, intelligent reflecting surface (IRS), a promising technology has attracted significant attention.By proper design of IRS, PLS can be boosted from ...
Hancheng LU, Yazheng WANG, Dan ZHAO, Tao LUO, Jun WU   +4 more
doaj   +2 more sources

Inkjet printed intelligent reflecting surface for indoor applications

Electronics Letters, 2023
A passive, low‐cost, paper‐based intelligent reflecting surface (IRS) is designed to reflect a signal in a desired direction to overcome non‐line‐of‐sight scenarios in indoor environments.
Kairi Takimoto, Kazutomo Nakamura, Peter Njogu, Kota Suzuki, Masato Sugimoto, Ashif Fathnan, Takashi Kondo, Masayuki Mori, Daisuke Anzai, Hiroki Wakatsuchi   +9 more
doaj   +1 more source

Machine Learning for Intelligent-Reflecting-Surface-Based Wireless Communication towards 6G: A Review

Sensors, 2022
An intelligent reflecting surface (IRS) is a programmable device that can be used to control electromagnetic waves propagation by changing the electric and magnetic properties of its surface.
Mohammad Abrar Shakil Sejan, Md Habibur Rahman, Beom-Sik Shin, Ji-Hye Oh, Young-Hwan You, Hyoung-Kyu Song   +5 more
doaj   +1 more source

Channel estimation for hybrid intelligent reflecting surface structure assisted mmWave communications

Tongxin xuebao, 2021
When adding intelligent reflecting surface (IRS) for assist communication in millimeter wave communication, the system becomes complicated and difficult to obtain channel state information (CSI).To solve these challenges, a hybrid intelligent reflecting ...
Youhua FU, Dong CHEN
doaj   +2 more sources

Ergodic Rate Analysis and IRS Configuration for Multi-IRS Dual-Hop DF Relaying Systems [PDF]

, 2021
Intelligent reflecting surface (IRS) has emerged as a promising and low-cost technology for improving wireless communications by collecting dispersed radio waves and redirecting them to the intended receivers.
Duan, W, Qian, P, Sun, Q, Wang, J, Wong, KK, Zhang, J   +5 more
core  

Weighted Sum Secrecy Rate Maximization for Joint ITS- and IRS-Empowered System

Entropy, 2023
In this work, we investigate a novel intelligent surface-assisted multiuser multiple-input single-output multiple-eavesdropper (MU-MISOME) secure communication network where an intelligent reflecting surface (IRS) is deployed to enhance the secrecy ...
Shaochuan Yang, Kaizhi Huang, Hehao Niu, Yi Wang, Zheng Chu   +4 more
doaj   +1 more source