Results 21 to 30 of about 9,993 (193)
Digital Communications and Networks, 2023 Intelligent reflecting surface (IRS) has been widely regarded as a promising technology for configuring wireless propagation environments. In this paper, we utilize IRS to assist transmission of a secondary user (SU) in a cognitive radio-inspired rate ...
Peixu Liu +4 more
doaj +1 more source
Deep Reinforcement Learning for Intelligent Reflecting Surface-assisted D2D Communications
EAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2023 In this paper, we propose a deep reinforcement learning (DRL) approach for solving the optimisation problem of the network’s sum-rate in device-to-device (D2D) communications supported by an intelligent reflecting surface (IRS).
Khoi Khac Nguyen +2 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 +4 more
core +1 more source
IEEE Access, 2021 This paper proposes an intelligent reflective surface (IRS) design scheme to improve the spectral efficiency (SE) for downlink multi-user (MU) multiple-input-single-output (MISO) system. IRS composed of low-cost reflecting elements is expected to be used
Ji-Sung Jung +3 more
doaj +1 more source
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 +4 more
doaj +1 more source
IRS-Aided Radar: Enhanced Target Parameter Estimation via Intelligent Reflecting Surfaces
2022 IEEE 12th Sensor Array and Multichannel Signal Processing Workshop (SAM), 2022 The intelligent reflecting surface (IRS) technology has recently attracted a lot of interest in wireless communications research. An IRS consists of passive reflective elements capable of tuning the phase, amplitude, frequency and polarization of the impinging waveforms.
Esmaeilbeig, Zahra +2 more
openaire +2 more sources
Intelligent Reflecting Vehicle Surface: A Novel IRS Paradigm for Moving Vehicular Networks
MILCOM 2022 - 2022 IEEE Military Communications Conference (MILCOM), 2022 Intelligent reflecting surface (IRS) has recently received much attention from the research community due to its potential to achieve high spectral and power efficiency cost-effectively. In addition to traditional cellular networks, the use of IRS in vehicular networks is also considered.
Jiang, Wei, Schotten, Hans D.
openaire +2 more sources
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 +6 more
core +2 more sources
Intelligent Reflecting Surface Enabled Covert Communications in Wireless Networks
IEEE Network, 2020 With growing security threats to the evolving wireless systems, protecting user privacy becomes progressively challenging. Even if the transmitted information is encrypted and the potential wiretap channel is physically limited (e.g. through information-theoretic security approaches), the raw data itself, such as transmitter position and transmission ...
Lu, Xiao +5 more
openaire +2 more sources
A Framework of Robust Transmission Design for IRS-Aided MISO Communications With Imperfect Cascaded Channels [PDF]
, 2020 Intelligent reflection surface (IRS) has recently been recognized as a promising technique to enhance the performance of wireless systems due to its ability of reconfiguring the signal propagation environment.
Nallanathan, A +4 more
core +3 more sources