Results 11 to 20 of about 5,087 (193)
Multi-Dimensional Physical-Layer Security via Digitally Mediated Space-Time Modulation. [PDF]
Adv Sci (Weinh)Digitally mediated space–time modulation moves radiation control beyond hardware‐bound switching. Multiple information‐bearing and masking waveforms are jointly synthesized at baseband and coherently coupled to simple periodic time modulation, enabling programmable, independently directed multi‐beam radiation without increasing switching‐state ...
Chen K +8 more
europepmc +2 more sources
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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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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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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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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Precision planter monitoring system based on mobile communication network
IET Networks, EarlyView., 2022 Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley +1 more source
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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Achieving High UAV Uplink Throughput by Using Beamforming on Board
IEEE Access, 2020 High-throughput unmanned aerial vehicle (UAV) communication may unleash the true potential of novel applications for aerial vehicles but also represents a threat for cellular networks due to the high levels of generated interference.
Tomasz Izydorczyk +5 more
doaj +1 more source
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