Proximal Policy Optimization-Based Transmit Beamforming and Phase-Shift Design in an IRS-Aided ISAC System for the THz Band [PDF]
IEEE Journal on Selected Areas in Communications, 2022 In this paper, an IRS-aided integrated sensing and communications (ISAC) system operating in the terahertz (THz) band is proposed to maximize the system capacity.
Xiangnan Liu +5 more
semanticscholar +1 more source
True-Time-Delay Receiver IC With Reconfigurable Analog and Digital Beamforming
IEEE Access, 2022 Spatial diversity advantages such as improved signal-to-noise ratio and in-band blocker filtering can be achieved through beamforming in the digital and/or analog domain.
Kalle Spoof +5 more
doaj +1 more source
Communication, sensing, computing and energy harvesting in smart cities
IET Smart Cities, Volume 4, Issue 4, Page 265-274, December 2022., 2022 Abstract A smart city provides diverse services based on real‐time data obtained from different devices deployed in urban areas. These devices are largely battery‐powered and widely placed. Therefore, providing continuous energy to these devices and ensuring their efficient sensing and communications are critical for the wide deployment of smart cities.
Yusha Liu, Kun Yang
wiley +1 more source
Intelligent Reflecting Surface Enhanced Wireless Network: Joint Active and Passive Beamforming Design [PDF]
Global Communications Conference, 2018 Intelligent reflecting surface (IRS) is envisioned to have abundant applications in future wireless networks by smartly reconfiguring the signal propagation for performance enhance- ment.
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Intelligent Reflecting Surface-Aided LEO Satellite Communication: Cooperative Passive Beamforming and Distributed Channel Estimation [PDF]
IEEE Journal on Selected Areas in Communications, 2022 Low-earth orbit (LEO) satellite communication plays an important role in assisting/complementing terrestrial communications by providing worldwide coverage, especially in harsh environments such as high seas, mountains, and deserts which are uncovered by
Beixiong Zheng, Shaoe Lin, Rui Zhang
semanticscholar +1 more source
Robust Beamforming for Ultrasonic Imaging using Wavelet-based Thresholding and Coherence Weighting [PDF]
International Journal of Industrial Electronics, Control and OptimizationThe delay-and-sum (DS) beamforming and delay-weight-and-sum (DWS) beamforming are primary methods in ultrasonic imaging with phased arrays. Total focusing method (TFM) and Minimum Variance (MV) based adaptive beamforming are well-known methods within DS ...
Mozhgan Ehsani +2 more
doaj +1 more source
Near-Field Beamforming Algorithms for UAVs
Sensors, 2023 This study presents three distributed beamforming algorithms to address the challenges of positioning and signal phase errors in unmanned aerial vehicle (UAV) arrays that hinder effective beamforming.
Yinan Zhang +5 more
doaj +1 more source
IET Science, Measurement &Technology, Volume 17, Issue 1, Page 11-26, January 2023., 2023 Abstract Partial discharge (PD) localization is critical to ensure the safe operation of power equipment. In this paper, an optimization scheme is developed for PD positioning of external insulation equipment. The optimization scheme is based on an eight‐element cross sensor array to receive the ultrasonic signal generated by the PD, and uses the ...
Shaotong Pei +4 more
wiley +1 more source
A novel joint transmit beamforming and receive time switching strategy for MISO SWIPT system
EURASIP Journal on Wireless Communications and Networking, 2018 In multi-antenna simultaneous wireless information and power transfer (SWIPT) system, beamforming strategy has been widely analyzed due to the increasing signal strength.
Lin Ma +4 more
doaj +1 more source
Energy-Efficient IRS-Aided NOMA Beamforming for 6G Wireless Communications [PDF]
IEEE Transactions on Green Communications and Networking, 2022 This manuscript presents an energy-efficient alternating optimization framework based on intelligent reflective surfaces (IRS) aided non-orthogonal multiple access beamforming (NOMA-BF) system for 6G wireless communications.
Asim Ihsan +5 more
semanticscholar +1 more source