Results 141 to 150 of about 9,993 (193)

A deep reinforcement learning integrated aerial RIS system for enhanced combat intelligence. [PDF]

Sci Rep
Kamal MM, Abideen SZU, Ahmad S, Husein A, Ullah K, Alfarraj O, Alblehai F, Sheraz M, Chuah TC.   +8 more
europepmc   +1 more source

Joint passive beamforming and deployment design for active intelligent reflecting surface-assisted energy harvesting-cognitive radio sensor networks. [PDF]

Sci Rep
Wang J, Zhu Y.
europepmc   +1 more source

Design and implementation of multi-band reflectarray metasurface for 5G millimeter wave coverage enhancement. [PDF]

Sci Rep
Malik BT, Khan S, Koziel S.
europepmc   +1 more source

Sustainable THz SWIPT via RIS-Enabled Sensing and Adaptive Power Focusing: Toward Green 6G IoT. [PDF]

Sensors (Basel)
Enahoro S, Ekpo SC, Uko M, Elias F, Unnikrishnan R, Alabi S, Olasunkanmi NK.   +6 more
europepmc   +1 more source

Joint interference alignment and beyond diagonal RIS design for maximizing SNR in MIMO device-to-device communications. [PDF]

Sci Rep
Ma B.
europepmc   +1 more source

Beam-Division Multiple Access for Intelligent Reflecting Surface (IRS)-Assisted mmWave and THz Communication Systems

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Intelligent Reflecting Surface (IRS)-Enhanced Cognitive Radio System

ICC 2020 - 2020 IEEE International Conference on Communications (ICC), 2020
Cognitive radio (CR) is an effective solution to increase the spectral efficiency (SE) of wireless communications by allowing the secondary users (SUs) to share the spectrum with primary users (PUs). On the other hand, intelligent reflecting surface (IRS) is a promising approach to enhance the energy efficiency (EE) of wireless communication systems ...
Jie Yuan, Ying-Chang Liang, Jingon Joung, Gang Feng, Erik G. Larsson   +4 more
openaire   +1 more source

Intelligent Reflecting Surface (IRS)-Aided Covert Communication With Warden’s Statistical CSI

IEEE Wireless Communications Letters, 2021
This work considers covert communications with the aid of an intelligent reflecting surface (IRS). We jointly design the transmit power and IRS’s reflection phase shifts and amplitudes to enhance covert communication performance. To this end, we first derive the total detection error rate at a warden.
Chaoyi Wu, Shihao Yan, Xiaobo Zhou, Riqing Chen, Jiande Sun   +4 more
openaire   +1 more source

Intelligent Reflecting Surface (IRS) assisted mmWave Wireless Communication Systems: A Survey

Journal of Communications, 2022
Intelligent Reflecting Surface (IRS) is a promising technology for enhancing the coverage of millimeter wave (mmWave) based future wireless communication systems. Severe path loss and high directivity make mmWave transmission vulnerable to blockage.
Nandan S., M. Abdul Rahiman
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Intelligent Reflecting Surface (IRS) Allocation Scheduling Method Using Combinatorial Optimization by Quantum Computing

IEEE Transactions on Emerging Topics in Computing, 2022
Intelligent Reflecting Surface (IRS) significantly improves the energy utilization efficiency in 6th generation cellular communication systems. Here, we consider a system with multiple IRS and users, with one user communicating via several IRSs. In such a system, the user to which an IRS is assigned for each unit time must be determined to realize an ...
Takahiro Ohyama, Yuichi Kawamoto, Nei Kato   +2 more
openaire   +1 more source