Department of Electrical and Electronics Engineering

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Recent Submissions

Isotropic gap formation, localization, and waveguiding in mesoscale Yukawa-potential amorphous structures Sarihan, Murat Can; Gövdeli, Alperen; Lan, Zhihao; Yilmaz, Yildirim Batuhan; Erdil, Mertcan; Wang, Yupei; Aras, Mehmet Sirin; Yanik, Cenk; Panoiu, Nicolae Coriolan; Wong, Chee Wei; Kocaman, Serdar (2024-12-01) Amorphous photonic structures are mesoscopic optical structures described by electrical permittivity distributions with underlying spatial randomness. They offer a unique platform for studying a broad set of electromagneti...
Graph domain adaptation with localized graph signal representations Pilavcı, Yusuf Yiğit; Güneyi, Eylem Tuğçe; Cengiz, Cemil; Vural, Elif (2024-11-01) In this paper we propose a domain adaptation algorithm designed for graph domains. Given a source graph with many labeled nodes and a target graph with few or no labeled nodes, we aim to estimate the target labels by makin...
WLAV state estimation based topology error detection and identification in distribution networks with limited number of measurements Parlaktuna, Kemal; Dursun, Erk; Göl, Murat (2024-07-01) Rapidly populating renewable energy sources and storage units at the distribution system, made it crucial to monitor the system in real-time. This necessity brings new challenges and business opportunities for the distribu...
Non-invasive real-time diagnosis of PMSM faults implemented in motor control software for mission critical applications Demirel, Aykut; Keysan, Ozan; El-Dalahmeh, Ma'd; Al-Greer, Maher (2024-06-15) The machine's health should be continuously monitored, or a test should be applied on a regular basis to predict failure before fatal damage is incurred. Unexpected failures, particularly in mission-critical applications, ...
Multichannel multimodal piezoelectric middle ear implant concept based on MEMS technology for next-generation fully implantable cochlear implant applications Pirim, Feyza; Atik, Ali Can; Yüksel, Muhammed Berat; Yılmaz, Akın Mert; UĞUR, MEHMET BİROL; Tunalı, Selçuk; BATU, AYKAN; Aslan, Mahmut Kamil; Özer, Mehmet Bülent; Külah, Haluk (2024-06-01) This paper introduces a unique multimode, multichannel piezoelectric vibration sensor for the next-generation fully implantable cochlear implant (FICI) systems. The sensor, which can be implanted on the middle ear chain to...
LONG-TERM WIND POWER AND GLOBAL WARMING PREDICTION USING MARS, ANN, CART, LR, AND RF Yılmaz, Yavuz; Nalçacı, Gamze; Kańczurzewska, Marta; Weber, Gerhard Wilhelm (2024-06-01) The modeling of electricity generation plays a crucial role in investment and long-term planning in power systems, primarily due to the significant volatility associated with wind and solar energy sources. Nevertheless, fo...
Pre-enrichment-free detection of hepatocellular carcinoma-specific ctDNA via PDMS and MEMS-based microfluidic sensor Çağlayan Arslan, Zeynep; Okan, Meltem; Külah, Haluk (2024-05-01) The growing interest in microfluidic biosensors has led to improvements in the analytical performance of various sensing mechanisms. Although various sensors can be integrated with microfluidics, electrochemical ones have ...
Energy-efficient switching method using input-swapping for high-resolution successive approximation register analog-to-digital converters Kocak, Serhat; Akın, Tayfun (2024-05-01) This paper presents an energy-efficient digital-to-analog converter (DAC) switching method with low common-mode variations for high-resolution successive approximation register (SAR) analog-to-digital converters (ADCs), wh...
OMNeT++ Simulation Framework for Avionics Full-Duplex Switched Ethernet Gökçe, İ. Peşkircioğlu; Üçüncü, M.; Schmidt, Şenan Ece (2024-05-01) Avionics Full-Duplex Switched Ethernet (AFDX) is a popular network technology for integrated modular avionics (IMA). When designing an AFDX network, it is important to fulfill the real-time communication requirements of av...
NTN-Aided Quality and Energy-Aware Data Collection in Time-Critical Robotic Wireless Sensor Networks Gül, Ömer Melih; Erkmen, Aydan Müşerref; Kantarci, Burak (2024-05-01) Through the use of flying objects such as satellites and uncrewed aerial vehicles (UAVs), non-terrestrial networks (NTNs) have recently garnered interest in large-scale and developing wireless communication networks. UAV-a...
Optimization of a Solution-Processed TiOx/(n)c-Si Electron-Selective Interface by Pre- and Postdeposition Treatments Beyraghi, Naser; Şahiner, Mehmet Cem; Oguz, Oguzhan; Yerci, Selçuk (2024-04-03) Developing a vacuum-free and low-temperature deposition technique for dopant-free carrier-selective materials without sacrificing their performance can reduce the fabrication cost and CO2 footprint of silicon heterojunctio...
Plasmonic tuning of nano-antennas for super-gain light amplification Aşırım, Özüm Emre; Kuzuoğlu, Mustafa (2024-04-01) Nanoscale conductive materials are often used for inducing localized free electron oscillations known as plasmons. This is due to their high electronic excitability under optical irradiation owing to their super-small volu...
Future Distribution Networks: A Review Javid, Zahid; Kocar, Ilhan; Holderbaum, William; Karaağaç, Ulaş (2024-04-01) This manuscript presents a comprehensive review of recent advancements in electrical distribution networks, with a specific focus on the incorporation of direct current (DC) applications. The research aims to comprehensive...
Enhanced Near-Field Microwave Imaging System with Polarization Diversity Dalkilic, A.; Öktem, Sevinç Figen; Alatan, Lale (2024-03-01) In this letter, the impact of antenna polarization configuration and polarization diversity on the imaging quality of a near-field microwave imaging system is examined. Unlike previous works, this study also develops an ef...
Gradient-descent hardware-aware training and deployment for mixed-signal neuromorphic processors Cakal, Ugurcan; Maryada, Maryada; Wu, Chenxi; Ulusoy, İlkay; Muir, Dylan Richard (2024-03-01) Mixed-signal neuromorphic processors provide extremely low-power operation for edge inference workloads, taking advantage of sparse asynchronous computation within spiking neural networks (SNNs). However, deploying robust ...
Predictive Modeling of Light–Matter Interaction in One Dimension: A Dynamic Deep Learning Approach Aşırım, Özüm Emre; Asirim, Ece Z.; Kuzuoğlu, Mustafa (2024-02-01) The mathematical modeling and the associated numerical simulation of the light–matter interaction (LMI) process are well-known to be quite complicated, particularly for media where several electronic transitions take place...
A Multiobjective Array Beamforming Method for Arrays of Flexible Shape Meng, Chenfeng; Zhang, Yongwei; Temiz, Murat; El-Makadema, Ahmed (2024-02-01) High-performance beamforming incorporating multiple objectives for large-scale antenna arrays becomes increasingly important to improve the capacity and efficiency of wireless communication systems. The speed of synthesizi...
Design and verification of a parallel elastic robotic leg. Tanfener, Emre; Karagoz, Osman Kaan; Candan, Sinan Şahin; Turgut, Ali Emre; Yazıcıoğlu, Yiğit; Ankaralı, Mustafa Mert; Saranli, Uluc (2024-01-29) This paper presents the design and experimental verification of a parallel elastic robotic leg mechanism that aims to capture the dynamics of the linear mass-spring-damper model. The mechanism utilizes a wrapping cam mecha...
Efficient physics-based learned reconstruction methods for real-time 3D near-field MIMO radar imaging Manisali, Irfan; Oral, Okyanus; Öktem, Sevinç Figen (2024-01-01) Near-field multiple-input multiple-output (MIMO) radar imaging systems have recently gained significant attention. These systems generally reconstruct the three-dimensional (3D) complex-valued reflectivity distribution of ...
Reduced Complexity Correlation-Based Multi-Stream DPD for Hybrid Massive MIMO Salman, Murat Babek; Ucuncu, Ali Bulut; Güvensen, Gökhan Muzaffer (2024-01-01) This paper proposes a reduced complexity digital predistortion (DPD) scheme for fully-connected hybrid beamforming systems for massive multiple-input multiple-output (MIMO) channels impaired by nonlinear power amplifiers (...

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