Results 41 to 50 of about 164,291 (270)

Directional Modulation via Symbol-Level Precoding: A Way to Enhance Security [PDF]

, 2016
Wireless communication provides a wide coverage at the cost of exposing information to unintended users. As an information-theoretic paradigm, secrecy rate derives bounds for secure transmission when the channel to the eavesdropper is known.
Chatzinotas, Symeon, Kalantari, Ashkan, Maleki, Sina, Ottersten, Björn, Soltanalian, Mojtaba   +4 more
core   +2 more sources

Directional Modulation Design Under a Constant Magnitude Constraint for Weight Coefficients

IEEE Access, 2019
Directional modulation (DM) as a physical layer security technique has been studied from many different aspects recently. Normally all existing designs based on antenna arrays lead to varying weight coefficients for different antennas and for different ...
Bo Zhang, Wei Liu, Yang Li, Xiaonan Zhao, Cheng Wang   +4 more
doaj   +1 more source

Extracellular vesicles released by human retinal pigment epithelium mediate increased polarised secretion of drusen proteins in response to AMD stressors

Journal of Extracellular Vesicles, 2021
Age‐related macular degeneration (AMD) is a leading cause of blindness worldwide. Drusen are key contributors to the etiology of AMD and the ability to modulate drusen biogenesis could lead to therapeutic strategies to slow or halt AMD progression.
Miguel Flores‐Bellver, Jason Mighty, Silvia Aparicio‐Domingo, Kang V. Li, Cui Shi, Jing Zhou, Hannah Cobb, Patrick McGrath, German Michelis, Patricia Lenhart, Ganna Bilousova, Søren Heissel, Michael J. Rudy, Christina Coughlan, Andrew E. Goodspeed, S. Patricia Becerra, Stephen Redenti, M. Valeria Canto‐Soler   +17 more
doaj   +1 more source

Directional modulation design based on crossed-dipole arrays for two signals with orthogonal polarisations [PDF]

, 2018
Directional modulation (DM) is a physical layer security technique based on antenna arrays and so far the polarisation information has not been considered in its designs.
Lan, X., Liu, W., Zhang, B.
core   +2 more sources

Orthogonally Polarized Dual-Channel Directional Modulation Based on Crossed-Dipole Arrays

IEEE Access, 2019
Directional modulation (DM) as a physical layer security technique has been studied based on the traditional antenna arrays; however, in most of the designs, only one signal is transmitted at one carrier frequency.
Bo Zhang, Wei Liu, Xiang Lan
doaj   +1 more source

Artificial-Noise-Aided Secure Transmission With Directional Modulation Based on Random Frequency Diverse Arrays

IEEE Access, 2017
In this paper, a random frequency diverse array-based directional modulation with artificial noise (RFDA-DM-AN) scheme is proposed to enhance physical layer security of wireless communications.
Jinsong Hu, Shihao Yan, Feng Shu, Jiangzhou Wang, Jun Li, Yijin Zhang   +5 more
doaj   +1 more source

Bidirectional wireless power/data transfer via magnetic field

The Journal of Engineering, 2022
Recently, inductive power transfer (IPT) system has been used for wireless charging of electric vehicles (EVs). However, most of them only treat the issue of single directional wireless power transfer (WPT).
Jia‐Jing Kao, Chun‐Liang Lin, Chih‐Cheng Huang, Yen‐Ting Kuo   +3 more
doaj   +1 more source

Direct SUSY dark matter detection-Theoretical rates due to the spin

, 2004
The recent WMAP data have confirmed that exotic dark matter together with the vacuum energy (cosmological constant) dominate in the flat Universe.
Chen Wen-Fang, Gari M, Gari M, Gari M, Kim Y, Liu L, Lu D H, Lu Ding-Hui, Malov S, Saito K, Strauch S (JLab E93-049 collaboration), Zhang X B, Zhang Y J, Zschiesche D   +13 more
core   +1 more source

Haldane Quantum Hall Effect for Light in a Dynamically Modulated Array of Resonators [PDF]

, 2015
Topological insulators have attracted abundant attention for a variety of reasons -- notably, the possibility for lossless energy transport through edge states `protected' against disorder.
Minkov, Momchil, Savona, Vincenzo
core   +2 more sources

Altered amygdala effective connectivity in migraine without aura: evidence from resting‐state fMRI with Granger causality analysis

The Journal of Headache and Pain, 2021
Background Granger causality analysis (GCA) has been used to investigate the pathophysiology of migraine. Amygdala plays a key role in pain modulation of migraine attack. However, the detailed neuromechanism remained to be elucidated.
Xiaobin Huang, Di Zhang, Peng Wang, Cunnan Mao, Zhengfei Miao, Chunmei Liu, Chenjie Xu, Xindao Yin, Xinying Wu   +8 more
doaj   +1 more source