Results 241 to 250 of about 54,785 (276)

Secrecy Analysis and Optimization of UAV-Assisted IoT Networks With RF-EH and Imperfect Hardware

IEEE Internet of Things Journal
This article introduces uncrewed aerial vehicles (UAVs) assisted communication system for energy-constrained Internet of Things (IoT) devices. Herein, a power beacon transmits radio frequency (RF) signals to enable energy harvesting at the IoT devices ...
Gaurav Kumar Pandey, Devendra Singh Gurjar, Suneel Yadav, D. Krstić, Yuming Jiang   +4 more
semanticscholar   +1 more source

Deep Reinforcement Learning based Secrecy Spectrum Reuse Optimization for C-V2X Communications

2025 IEEE 5th International Conference on Computer Communication and Artificial Intelligence (CCAI)
This paper examines a deep reinforcement learning (DRL) approach for optimizing secrecy spectrum reuse in cellular vehicle-to-everything ($\mathbf{C}-\mathbf{V 2 X}$) communications.
Libin Zhao, Kun Zhou, Jingyi Peng, Qing Yan, Yang Yang   +4 more
semanticscholar   +1 more source

Secrecy Performance Analysis of Integrated RF-UOWC IoT Networks Enabled by UAV and Underwater RIS

IEEE Internet of Things Journal
In the sixth-generation (6G) Internet of Things (IoT) networks, unmanned aerial vehicle (UAV)-mounted base stations and reconfigurable intelligent surfaces (RISs) have been considered key technologies to enhance coverage, flexibility, and security in ...
A. B. Sarawar, A. Badrudduza, M. Ibrahim, I. S. Ansari, Heejung Yu   +4 more
semanticscholar   +1 more source

Secure Energy Efficiency Fairness Maximization in Backscatter Throughput Constrained UAV-Assisted Data Collection

IEEE International Conference on Acoustics, Speech, and Signal Processing
Collecting reliable data over extended areas in rural environments for surveillance purposes requires low-cost and effective technologies. This paper proposes a backscattering data collection system that uses unmanned aerial vehicles (UAVs) to overcome ...
Jiawang Zeng, Deepak Mishra, H. Gharakheili, Aruna Seneviratne   +3 more
semanticscholar   +1 more source

Secrecy Analysis of RIS-Aided mmWave Systems over Independent Fluctuating Two-Ray Fading Channels

Asia-Pacific Conference on Communications
In this paper, we examine a millimeter-wave (mmWave) wiretap scenario where a multiple-antenna base station (Alice) communicates with a legitimate user (Bob) via a reconfigurable intelligent surface, while multiple colluding eavesdroppers (Eves) attempt ...
Phuc V. Trinh, S. Sugiura
semanticscholar   +1 more source

Optimal Target Secrecy Rate and Power Allocation Policy for a SWIPT System Over a Fading Wiretap Channel

IEEE Systems Journal, 2018
The simultaneous wireless information and power transfer (SWIPT) technique is regarded as a promising approach to enhance performance of wireless networks with limited energy supply.
Hongyan Yu, Songtao Guo, Yuanyuan Yang, Bin Xiao   +3 more
semanticscholar   +1 more source

Secrecy and Efficiency in Overlay Cognitive Full-duplex Wireless Networks

IEEE International Conference on Electronic Information and Communication Technology, 2019
In this paper, we proposed a new collaboration-based transmission scheme for overlay cognitive full-duplex wireless wiretap networks, where a full-duplex transmitter can help the primary system transmit information and utilizes the licensed spectrum to ...
Mu Li, Yuzhen Huang, Mianquan Li, M. Ke, Xiaohui Shang, Xiaofei Qu, Kechao Li   +6 more
semanticscholar   +1 more source

Double-RIS Enabled Physical Layer Security for Wireless-Powered Communication Systems Over Rayleigh Fading Channels

IEEE Transactions on Communications
This paper investigates the physical layer security for a double-reconfigurable intelligent surface (DRIS) aided wireless-powered communication (WPC) system in the presence of an eavesdropper, where one RIS (termed as RIS-1) is deployed between power ...
Jingyu Chen, Kunrui Cao, Haiyang Ding, Lu Lv, Yinghui Ye, Haolian Chi, Tao Wang, Liang Yang   +7 more
semanticscholar   +1 more source

Molecular imaging in oncology: Current impact and future directions

Ca-A Cancer Journal for Clinicians, 2022
Steven P Rowe, Martin G Pomper
exaly  

Technological Innovations in Photochemistry for Organic Synthesis: Flow Chemistry, High-Throughput Experimentation, Scale-up, and Photoelectrochemistry

Chemical Reviews, 2022
Laura Buglioni, Stefan D A Zondag, Timothy Noel   +2 more
exaly