Results 41 to 50 of about 23,576 (261)

Secret key generation for reconfigurable intelligent surface‐assisted MISO multi‐user system

IET Communications
Reconfigurable intelligent surface (RIS)‐assisted physical layer key generation plays an important role in the eavesdropping problem on a typical multi‐user scenario of wireless networks.
Kexin Liu, Mingliang Li, Kaizhi Huang, Zheng Wan, Qinlong Li, Xiaoli Sun, Xiaoming Xu, Liang Jin   +7 more
doaj   +1 more source

A Weighted K-SVD-Based Double Sparse Representations Approach for Wireless Channels Using the Modified Takenaka-Malmquist Basis

IEEE Access, 2018
In this paper, a new double-sparse representation scheme for wireless channel is proposed based on the modified Takenaka-Malmquist basis (MTMB) functions.
Ya Lei, Yong Fang, Liming Zhang
doaj   +1 more source

Performance analysis of linear precoders with imperfect channel covariance information for multicell system

The Journal of Engineering, 2020
Comparison and analysis of the regularised zero forcing precoder, rapid numerical algorithms-based precoder and the truncated polynomial expansion-based precoder are done for massive multiple-input multiple-output wireless system for multicell scenario ...
Emmanuel Mukubwa, Oludare A. Sokoya
doaj   +1 more source

Physical layer security of single‐input multiple‐out relay networks over Beaulieu‐Xie fading channels

IET Communications, 2023
With the progress of communication technology, the increasing wireless devices are hooked up the networks, and the consequent security problems cannot be ignored. At present, the solutions mainly include secret key system and physical layer security (PLS)
Junxia Li, Xuexue Ma, Faxin Ye, Jiangfeng Sun   +3 more
doaj   +1 more source

MagPiezo: A Magnetogenetic Platform for Remote Activation of Endogenous Piezo1 Channels in Endothelial Cells

Advanced Functional Materials, EarlyView.
MagPiezo enables wireless activation of endogenous Piezo1 channels without genetic modification using 19 nm magnetic nanoparticles and low‐intensity magnetic fields. It generates torque forces at the piconewton scale to trigger mechanotransduction in endothelial cells, standing as a novel platform to interrogate and manipulate Piezo1 activity in vitro.
Susel Del Sol‐Fernández, Mariarosaria De Simone, Yilian Fernández‐Afonso, Daniel Garcia‐Gonzalez, Pablo Martínez‐Vicente, Thomas van Zanten, Raluca M. Fratila, Maria Moros   +7 more
wiley   +1 more source

On differential privacy for federated learning in wireless systems with multiple base stations

IET Communications
In this work, we consider a federated learning model in a wireless system with multiple base stations and inter‐cell interference. We apply a differentially private scheme to transmit information from users to their corresponding base station during the ...
Nima Tavangaran, Mingzhe Chen, Zhaohui Yang, José Mairton B. Da Silva Jr., H. Vincent Poor   +4 more
doaj   +1 more source

Semantic and Technical Noise Modeling in Semantic Image Communication Over Wireless Channels

IEEE Access
As wireless networks approach their Shannon capacity limit amid exponentially increasing data demands, semantic communication, which transmits the meaning of data rather than its exact form, has emerged as a compelling alternative.
Prabhath Samarathunga, Nimesh Pollwaththage, Thanuj Fernando, Udara Jayasinghe, Nimesha Ihalagamage, Yasith Ganearachchi, Anil Fernando   +6 more
doaj   +1 more source

Distributed Joint Source-Channel Coding in Wireless Sensor Networks

Sensors, 2009
Considering the fact that sensors are energy-limited and the wireless channel conditions in wireless sensor networks, there is an urgent need for a low-complexity coding method with high compression ratio and noise-resisted features.
Lin Zhang, Xuqi Zhu, Yu Liu
doaj   +1 more source

Synergistic All‐in‐One Electroceutical Platform Utilizing a Plasma–Photodynamic Hybrid Approach for Enhanced Wound Healing

Advanced Functional Materials, EarlyView.
A flexible hybrid patch integrating a robust cold atmospheric plasma (CAP) system with a high‐power, ultrathin bio‐OLED was developed to enable synergistic wound healing. This multimodal therapy, combining plasma and photodynamic treatment, enhanced angiogenesis, cell proliferation, and collagen deposition, demonstrating superior in vivo efficacy and ...
Jun‐Yeop Song, Hyun Cheol Bang, Young Hyun Son, Dae‐In Ha, Eun‐Ju Hong, Sun‐Woo Lee, Jeongsook Kim, Doyeong Kim, Sang‐Min Park, Kyu Pil Lee, Hyo‐Jung Kwon, Jeong Hyun Kwon   +11 more
wiley   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source