Results 21 to 30 of about 6,839,717 (234)
Uncoordinated Beamforming for Cognitive Networks [PDF]
Proceedings of the 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, 2011 In this paper, we propose jointly-optimized beam-forming algorithms for cognitive networks to maximize the achievable rates assuming single information stream in both primary and secondary links. The primary and cognitive users share the same spectrum and are equipped with multiple antennas. No coordination is required between the primary and cognitive
Simon Yiu +3 more
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Mm-Wave Beam Steering Antenna Arrays Using Microfluidically Reconfigurable Beamforming Networks
IEEE Journal of Microwaves, 2023 A microfluidically reconfigurable beamforming network is introduced for beam steering mm-wave antenna arrays. The beamforming network consists of a selectively metallized plate (SMP) that is encapsulated within a microfluidic channel in close proximity ...
Jonas Mendoza, Gokhan Mumcu
doaj +1 more source
Implementasi Struktur Meander Line untuk Mereduksi Ukuran Butler Matrix 2 × 2
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2021 Butler matrix adalah beamforming network yang umum digunakan pada antena multibeam karena memiliki struktur yang sederhana dan efisiensi yang tinggi. Namun, Butler matrix memiliki dimensi yang relatif besar.
Zulfi, Achmad Munir
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Deep neural networks for ultrasound beamforming [PDF]
2017 IEEE International Ultrasonics Symposium (IUS), 2017 We investigate the use of deep neural networks (DNNs) for suppressing off-axis scattering in ultrasound channel data. Our implementation operates in the frequency domain via the short-time Fourier transform. The inputs to the DNN consisted of the separated real and imaginary components (i.e.
Adam Luchies, Brett C. Byram
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Secrecy Transmit Beamforming for Heterogeneous Networks [PDF]
IEEE Journal on Selected Areas in Communications, 2015 In this paper, we pioneer the study of physical-layer security in heterogeneous networks (HetNets). We investigate secure communications in a two-tier downlink HetNet, which comprises one macrocell and several femtocells. Each cell has multiple users and an eavesdropper attempts to wiretap the intended macrocell user. Firstly, we consider an orthogonal
Tiejun Lv, Hui Gao 0001, Shaoshi Yang
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Machine Learning-Based Beamforming in K-User MISO Interference Channels
IEEE Access, 2021 In this paper, we consider a K-user multiple-input and single-output interference channel and propose a machine learning-based beamforming design. To circumvent the difficulties of beamforming design in interference channels, we consider a beamforming ...
Hyung Jun Kwon, Jung Hoon Lee, Wan Choi
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True Time Delay Optical Beamforming Network Based on Hybrid Inp-Silicon Nitride Integration
Journal of Lightwave Technology, 2021 We demonstrate a broadband and continuously tunable 1×4 optical beamforming network (OBFN), based on the hybrid integration of indium phosphide (InP) components in the silicon nitride (Si3N4) platform.
C. Tsokos +15 more
semanticscholar +1 more source
Opportunistic Beamforming in Wireless Network-on-Chip [PDF]
2019 IEEE International Symposium on Circuits and Systems (ISCAS), 2019 Wireless Network-on-Chip (WNoC) has emerged as a promising alternative to conventional interconnect fabrics at the chip scale. Since WNoCs may imply the close integration of antennas, one of the salient challenges in this scenario is the management of coupling and interferences. This paper, instead of combating coupling, aims to take advantage of close
Abadal Cavallé, Sergi +7 more
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Beamforming for 5G Networks [PDF]
International Journal of Trend in Scientific Research and Development, 2018 In next five years 5G is the most popular and anticipated mobile technology and beam forming is one of the important aspect of 5G networks. Beam forming is a technique used by sensor arrays for a directional signal transmission or reception and is very important for number of applications like Radar, biomedicine, radio communications, SONAR.
Irfan Nissar Bhat, Er. Harish Dogra
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Model-Driven Beamforming Neural Networks [PDF]
IEEE Wireless Communications, 2020 Beamforming is evidently a core technology in recent generations of mobile communication networks. Nevertheless, an iterative process is typically required to optimize the parameters, making it ill-placed for real-time implementation due to high complexity and computational delay.
Wenchao Xia +3 more
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