Browsing NTNU Open by Author "Kara, Ali"
Now showing items 1-8 of 8
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A Database for the Radio Frequency Fingerprinting of Bluetooth Devices
Uzundurukan, Emre; Dalveren, Yaser; Kara, Ali (Peer reviewed; Journal article, 2020)Radio frequency fingerprinting (RFF) is a promising physical layer protection technique which can be used to defend wireless networks from malicious attacks. It is based on the use of the distinctive features of the physical ... -
Deep Learning-Based Vehicle Classification for Low Quality Images
Tas, Sumeyra; Sari, Ozgen; Dalveren, Yaser; Pazar, Senol; Kara, Ali; Derawi, Mohammad (Peer reviewed; Journal article, 2022)This study proposes a simple convolutional neural network (CNN)-based model for vehicle classification in low resolution surveillance images collected by a standard security camera installed distant from a traffic scene. ... -
Design and Optimization of Piezoelectric-Powered Portable UV-LED Water Disinfection System
Şala, Derda E.; Dalveren, Yaser; Kara, Ali; Derawi, Mohammad (Peer reviewed; Journal article, 2021)Due to the environmental pollution threatening human life, clean water accessibility is one of the major global issues. In this context, in literature, there are many portable water disinfection systems utilizing ultraviolet ... -
On the Performance of Variational Mode Decomposition-Based Radio Frequency Fingerprinting of Bluetooth Devices
Aghnaiya, Alghannai; Dalveren, Yaser; Kara, Ali (Peer reviewed; Journal article, 2020)Radio frequency fingerprinting (RFF) is one of the communication network’s security techniques based on the identification of the unique features of RF transient signals. However, extracting these features could be burdensome, ... -
Optimal Operation Mode Selection for Energy-efficient Light-weight Multi-hop Time Synchronization in Linear Wireless Sensor Networks
Imran, Md Abdullah Al; Dalveren, Yaser; Tavli, Bulent; Kara, Ali (Peer reviewed; Journal article, 2020)We explored the joint effect of synchronization window and offset/drift mode selection on the time synchronization of linear wireless sensor networks (LWSNs). Recent advances in the field along with the availability of ... -
Performance Assessment of Transient Signal Detection Methods and Superiority of Energy Criterion (EC) Method
Ismail S., Mohamed; Dalveren, Yaser; Kara, Ali (Peer reviewed; Journal article, 2020)Radio frequency fingerprinting (RFF) based on RF transients is one of the most effective techniques for improving wireless security. For an efficient RFF development, RF transients need to be accurately detected. However, ... -
A Simple Propagation Model to Characterize the Effects of Multiple Human Bodies Blocking Indoor Short-Range Links at 28 GHz
Dalveren, Yaser; Karatas, Gokhan; Derawi, Mohammad; Kara, Ali (Peer reviewed; Journal article, 2021)This study aims to provide a simple approach to characterize the effects of scattering by human bodies in the vicinity of a short-range indoor link at 28 GHz while the link is fully blocked by another body. In the study, ... -
Variational Mode Decomposition-Based Threat Classification for Fiber Optic Distributed Acoustic Sensing
Abufana, Saleh A.; Dalveren, Yaser; Aghnaiya, Alghannai; Kara, Ali (Peer reviewed; Journal article, 2020)In this study, a novel method is proposed to detect and classify the threats for fiber optic distributed acoustic sensing (DAS) systems. In the study, phase-sensitive optical time-domain reflectometry (phase-OTDR) is ...