13 citations · 24 across the 14 of their papers we have counts for
14 papers
CII: Novel CSI-RS Metric for Joint Precoder and RIS Reporting in Multi-User NextG Networks
Ali Fuat Sahin, Sefa Kayraklik, Ali Gorcin +3
While reconfigurable intelligent surfaces (RISs) are among the key enablers for next-generation (NextG) wireless networks, efficient feedback reporting for joint base station (BS)…
A Novel Stripe-based RIS Optimization for UAV Communications and Sensing in Low-Altitude Wireless Networks
Burak Ahmet Celebi, Sefa Kayraklik, Onur Salan +3
Low-altitude wireless networks (LAWN) envision a reconfigurable 3D network capable of supporting mission-critical aerial operations. This paper presents a reconfigurable intelligen…
Radar-Assisted Beam Management Framework for mmWave NTNs: Overhead Reduction and Physical Layer Security Application
Bora Bozkurt, Cevdet Tosun, Mehmet Nuri Akinci +3
Fast and low-overhead beam management is a critical requirement for the practical deployment of non-terrestrial networks (NTNs) operating at millimeter-wave and higher frequencies.…
RFNoC-Based FPGA Offloading for Fully Programmable PHY Acceleration
A. Oguz Kislal, Osman Mert Yilmaz, Bengu Bilgic Keskin +2
Hardware acceleration has emerged as a key research topic for supporting computationally intensive signal processing and artificial intelligence applications in 6G research and dev…
A Novel CSI-RS Reporting Scheme for RIS Optimization in O-RAN-based NextG Networks
Ali Fuat Sahin, Sefa Kayraklik, Ali Gorcin +3
Reconfigurable intelligent surface (RIS) technology is a promising enabler for next-generation (NextG) wireless systems, capable of dynamically shaping the propagation environment.…
RIS-Assisted Physical Layer Security: Artificial Noise-Driven Optimization and Measurements
Ahmet Muaz Aktas, Sefa Kayraklik, Sultangali Arzykulov +3
Reconfigurable intelligent surface (RIS) has emerged as a key enabler for providing signal coverage, energy efficiency, reliable communication, and physical layer security (PLS) in…
Space-Time Coded RIS-Assisted Wireless Systems with Practical Reflection Models: Error Rate Analysis and Negative Moment-Based Optimization with Saddle Point Approximation
Tayfun Yilmaz, Haci Ilhan, Ibrahim Hokelek
RIS-assisted communication has recently attracted significant attention for enhancing wireless performance in challenging environments, making accurate error analysis under practic…
Joint Phase Shift Optimization and Precoder Selection for RIS-Assisted 5G NR MIMO Systems
Osman Mert Yilmaz, Tayfun Yilmaz, Ali Gorcin +3
By intelligently reconfiguring wireless propagation environment, reconfigurable intelligent surfaces (RISs) can enhance signal quality, suppress interference, and improve channel c…
Interference Modulation: A Novel Technique for Low-Rate and Power Efficient Multiple Access
M. Yaser Yagan, Ali E. Pusane, Ali Gorcin +1
The majority of spatial signal processing techniques focus on increasing the total system capacity and providing high data rates for intended user(s). Unlike the existing studies,…
A Practical Demonstration of DRL-Based Dynamic Resource Allocation xApp Using OpenAirInterface
Onur Sever, Onur Salan, Ibrahim Hokelek +1
Network slicing is a key enabler for providing a differentiated service support to heterogeneous use cases and applications in 5G and beyond networks through creating multiple logi…
RIS Meets O-RAN: A Practical Demonstration of Multi-user RIS Optimization through RIC
Ali Fuat Sahin, Onur Salan, Ibrahim Hokelek +1
Open Radio Access Network (O-RAN) along with artificial intelligence, machine learning, cloud and edge networking, and virtualization are important enablers for designing flexible…
Fast Network Recovery from Large-Scale Disasters: A Resilient and Self-Organizing RAN Framework
M. Yaser Yagan, Sefa Kayraklik, Samed Kesir +8
Extreme natural phenomena are occurring more frequently everyday in the world, challenging, among others, the infrastructure of communication networks. For instance, the devastatin…
Practical Implementation of RIS-Aided Spectrum Sensing: A Deep Learning-Based Solution
Sefa Kayraklik, Ibrahim Yildirim, Ertugrul Basar +2
This paper presents reconfigurable intelligent surface (RIS)-aided deep learning (DL)-based spectrum sensing for next-generation cognitive radios. To that end, the secondary user (…
Measurement-based Channel Characterization for A2A and A2G Wireless Drone Communication Systems
Ubeydullah Erdemir, Batuhan Kaplan, İbrahim Hökelek +2
This paper presents field measurement-based channel characterization for air--to--ground (A2G) and air--to--air (A2A) wireless communication systems using two drones equipped with…