Results 81 to 90 of about 10,533 (195)

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

A review on underwater beamforming: Techniques, challenges, and future directions

Journal of Ocean Engineering and Science
This paper comprehensively reviews recent advancements in Underwater Beamforming (UWB) systems, highlighting its pivotal role in underwater communication, sensing, and environmental monitoring.
Ruba Zaheer, Quoc Viet Phung, Iftekhar Ahmad, Asma Aziz, Daryoush Habibi, Yue Rong, Walid K Hasan   +6 more
doaj   +1 more source

Ultrasound Computed Tomography Reflection Imaging with Coherence-Factor Beamforming for Breast Tumor Early Detection

Mathematics
Breast cancer is a global health concern, emphasizing the need for early detection. However, current mammography struggles to effectively image dense breasts.
Zuoxun Hou, Ruichen Yuan, Zihao Wang, Xiaorui Wei, Chujian Ren, Jiale Zhou, Xiaolei Qu   +6 more
doaj   +1 more source

Graph Neural Network-Based Unified Beamforming and User Selection for MU-MISO

IEEE Access
Classical beamforming algorithms face challenges such as increased complexity with more users and base station antennas (BSAs), as well as the requirement of accurate channel state information (CSI).
Wooseok Woo, Soyoung Han, Jae Hyun Seo, Hosung Park   +3 more
doaj   +1 more source

Robust Beamforming Technologies for Conformal Array of Small-Scale Platform Based on Covariance Matrix Fitting

水下无人系统学报
To achieve robust detection on small-scale platforms like unmanned undersea vehicles(UUVs), which are characterized by their limited maneuverability and array apertures, various beamforming algorithms were designed by leveraging U-shaped conformal planar
Shiyu GONG, Erzheng FANG, Jianing ZHANG
doaj   +1 more source

KANsformer for Scalable Beamforming

IEEE Transactions on Vehicular Technology
This paper proposes an unsupervised deep-learning (DL) approach by integrating transformer and Kolmogorov-Arnold networks (KAN) termed KANsformer to realize scalable beamforming for mobile communication systems. Specifically, we consider a classic multi-input-single-output energy efficiency maximization problem subject to the total power budget.
Xinke Xie, Yang Lu 0008, Chong-Yung Chi, Wei Chen 0016, Bo Ai 0001, Dusit Niyato   +5 more
openaire   +2 more sources

Hybrid Robust Beamforming Optimization for LEO Satellite Communications Under DOA Estimation Errors in Spectrum Sharing Scenarios. [PDF]

Sensors (Basel)
Wang Y, Xie X, Jia J.
europepmc   +1 more source

Robust Adaptive Beamforming Algorithm Based on Improved Generalized Linear Combination. [PDF]

Sensors (Basel)
Gao Z, Zuo R, Huang P, Xu W, Tan W, Wu Z.   +5 more
europepmc   +1 more source

DRL-Based Beam Split Alleviation for Movable Antenna-Enabled Near-Field Wideband Communications. [PDF]

Sensors (Basel)
Zhang T, Jiang R, Dai H, Zhou C, Xu Y.
europepmc   +1 more source