Results 71 to 80 of about 39,121 (219)

Numerically Optimized Fourier Transform-Based Beamforming Accelerated by Neural Networks

Applied Sciences
Conventional beamforming methods for reconfigurable reflector antennas assume full control over the amplitude and phase of the reflected field. Here, we develop a novel beamforming methodology for reflecting Programmable Metasurfaces (PMS) with ...
Keivan Kaboutari, Abdelghafour Abraray, Stanislav Maslovski   +2 more
doaj   +1 more source

Analysis of Simulated and Measured Indoor Channels for mm-Wave Beamforming Applications

International Journal of Antennas and Propagation, 2018
Ray tracing- (RT-) assisted beamforming, where beams are directly steered to dominant paths tracked by ray tracing simulations, is a promising beamforming strategy, since it avoids the time-consuming exhaustive beam searching adopted in conventional beam
Anders Karstensen, Wei Fan, Fengchun Zhang, Jesper Ø. Nielsen, Gert F. Pedersen   +4 more
doaj   +1 more source

Reinforcement Learning-Based Joint Beamwidth and Beam Alignment Interval Optimization in V2I Communications

Sensors
The directional antenna combined with beamforming is one of the attractive solutions to accommodate high data rate applications in 5G vehicle communications.
Jihun Lee, Hun Kim, Jaewoo So
doaj   +1 more source

Multiple-Beam Selection With Limited Feedback for Hybrid Beamforming in Massive MIMO Systems

IEEE Access, 2017
Hybrid multiple-input multiple-output (MIMO) systems have been thought as a promising technology in future 5G. Compared with conventional digital MIMO systems, such a structure is equipped with fewer RF chains, which would reduce the computational ...
Yuwei Ren, Yingmin Wang, Can Qi, Yinjun Liu   +3 more
doaj   +1 more source

Empirical Phase Calibration for Multistatic Specular Meteor Radars Using a Beamforming Approach [PDF]

, 2019
Jorge L. Chau, Matthias Clahsen
openalex   +1 more source

Multi-mode single sideband time modulation harmonic adaptive beamforming

Zhongguo Jianchuan Yanjiu
ObjectiveThis study proposes an innovative beamforming method to achieve high-efficiency harmonic adaptive beamforming through multi-mode single sideband time modulation technology.MethodA multi-mode single sideband time modulation module containing ...
Tao YANG, Xiaonan ZHAO, Zhenji LIU, Tingting FAN, Liu YANG, Yu XIA, Jingfeng CHEN   +6 more
doaj   +1 more source

UCB-DQN based Joint Beamforming and Power Control for Software Defined UAV Swarm Network

, 2022
Haitao Li, Shuai Zhang, Zheng Fang, Qiming Qiu   +3 more
openalex   +1 more source

Exploiting Reconfigurable Intelligent Surfaces in Edge Caching: Joint Hybrid Beamforming and Content Placement Optimization [PDF]

, 2020
Yingyang Chen, Miaowen Wen, Ertuğrul Başar, Yik‐Chung Wu, Li Wang, Weiping Liu   +5 more
openalex   +1 more source

Time Modulated Arrays Beamforming for Non-Terrestrial Network User Terminal

IEEE Open Journal of the Communications Society
Though beamforming is the fundamental element of satellite communication, it incurs costs, complexity, and power consumption. In this paper, we study a Time-Modulated Array (TMA) beamforming design on the Non-Terrestrial Network (NTN) User Terminal (UT ...
Gebrehiwet Gebrekrstos Lema, Eva Lagunas, M. R. Bhavani Shankar, Joel Grotz   +3 more
doaj   +1 more source

2D Pre-Beamforming Control Method via Analog Radio Over Fiber for Wireless Communication Systems With Massive Planar Array Antenna

IEEE Access
To rapidly deploy large capacity wireless communication services using high frequency bands, a system is being considered that use radio-over-fiber (RoF) technology to separate the wireless base station function into a central station (CS) with signal ...
Mizuki Suga, Yuta Takahashi, Yasuyoshi Yamamoto, Hideki Toshinaga, Naoki Kita, Takeshi Onizawa   +5 more
doaj   +1 more source