Browsing by Author "Ergin, S."

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Experimental demonstration of an FPGA-based outdoor VLC broadcasting system
(IEEE, 2023) Bağlıca, İbrahim; Ashfaq, Bismillah Nasir; Ergin, S.; Kebapçı, B.; Baykas, T.; Uysal, Murat; Electrical & Electronics Engineering; UYSAL, Murat
Visible light communication (VLC) uses light-emitting diodes (LEDs) to transmit data by turning them on and off at very high speeds, too fast for the human eye to perceive. In outdoor environments, LED-based streetlights can be utilized as VLC transmitters. Given the ubiquity of street lights, they are particularly useful for outdoor broadcasting as required in public safety systems. In this paper, we develop an FPGA-based VLC system with on-off keying using a LED-based streetlight. The system is built upon the Eclypse Z7 FPGA platform integrated with opto-electronic transmitter and receiver front-ends. We present error rate performance results up to transmission distances of 8 meters.
Open Access
FPGA-based implementation of an underwater quantum key distribution system with BB84 protocol
(IEEE, 2023-08) Kebapçı, B.; Levent, V. E.; Ergin, S.; Mutlu, Görkem; Bağlıca, İbrahim; Tosun, A.; Paglierani, P.; Pelekanakis, K.; Petroccia, R.; Alves, J.; Uysal, Murat; Electrical & Electronics Engineering; UYSAL, Murat; Bağlıca, İbrahim
As threats in the maritime domain diversify, securing data transmission becomes critical for underwater wireless networks designed for the surveillance of critical infrastructure and maritime border protection. This has sparked interest in underwater Quantum Key Distribution (QKD). In this paper, we present an FPGA-based real-time implementation of an underwater QKD system based on the BB84 protocol. The QKD unit is built on a hybrid computation system consisting of an FPGA and an on-board computer (OBC) interfaced with optical front-ends. A real-time photon counting module is implemented on FPGA. The transmitter and receiver units are powered with external UPS and all system parameters can be monitored from the connected computers. The system is equipped with a visible laser and an alignment indicator to validate successful manual alignment. Secure key distribution at a rate of 100 qubits per second was successfully tested over a link distance of 7 meters.
Metadata only
Real-time implementation of an underwater quantum key distribution system
(IEEE, 2022) Kebapçı, B.; Mutlu, Görkem; Bağlıca, İbrahim; Tosun, A.; Ergin, S.; Levent, V. E.; Uysal, Murat; Paglierani, P.; Pelekanakis, K.; Petroccia, R.; Alves, J.; Electrical & Electronics Engineering; UYSAL, Murat; Bağlıca, İbrahim
As threats in the maritime domain diversify, securing data transmission becomes critical for underwater wireless networks designed for the surveillance of critical infrastructure and maritime border protection. This has sparked interest in underwater Quantum Key Distribution (QKD). In this paper, we present a real-time implementation of an underwater QKD system based on the BB84 protocol. The QKD unit is built on a hybrid computation system consisting of an FPGA and an on-board computer (OBC) interfaced with optical front-ends. A real-time photon counting module has been implemented on FPGA. The transmitter and receiver units are powered with external UPS and all system parameters can be monitored from the connected computers. The system is also equipped with a visible laser and an alignment indicator to validate successful manual alignment.