no code implementations • 19 Oct 2024 • Khaled Nakhleh, Ceyhun Eksin, Sabit Ekin
This paper proposes an agent-based optimistic policy iteration (OPI) scheme for learning stationary optimal stochastic policies in multi-agent Markov Decision Processes (MDPs), in which agents incur a Kullback-Leibler (KL) divergence cost for their control efforts and an additional cost for the joint state.
no code implementations • 27 Jul 2024 • Hieu Le, Oguz Bedir, Jian Tao, Sabit Ekin, Mostafa Ibrahim
This study presents a novel mechanical metallic reflector array to guide wireless signals to the point of interest, thereby enhancing received signal quality.
no code implementations • 26 Jul 2024 • Mostafa Ibrahim, Sabit Ekin
Propeller modulation, also known as micro-Doppler modulation, presents a significant challenge in radio frequency (RF) inspection operations conducted via drones.
no code implementations • 30 May 2024 • Karl Strecker, Sabit Ekin, John F. O'Hara
This article discusses the challenges and opportunities of managing group delay dispersion (GDD) and its relation to the performance standards of future sixth-generation (6G) wireless communication systems utilizing terahertz frequency waves.
no code implementations • 27 May 2024 • Md Zobaer Islam, Ethan Abele, Fahim Ferdous Hossain, Arsalan Ahmad, Sabit Ekin, John F. O'Hara
Channel turbulence presents a formidable obstacle for free-space optical (FSO) communication.
no code implementations • 22 May 2024 • Mostafa Ibrahim, Arsalan Ahmad, Sabit Ekin, Peter LoPresti, Serhat Altunc, Obadiah Kegege, John F. O'Hara
Radio frequency (RF) communications offer reliable but low data rates and energy-inefficient satellite links, while free-space optical (FSO) promises high bandwidth but struggles with disturbances imposed by atmospheric effects.
no code implementations • 22 May 2024 • Nurullah Sevim, Mostafa Ibrahim, Sabit Ekin
The advent of Large Language Models (LLMs) has revolutionized language understanding and human-like text generation, drawing interest from many other fields with this question in mind: What else are the LLMs capable of?
no code implementations • 24 Feb 2024 • Waseem Raza, Fahd Ahmed Khan, Muhammad Umar Bin Farooq, Sabit Ekin, Ali Imran
The performance of user-centric ultra-dense networks (UCUDNs) hinges on the Service zone (Szone) radius, which is an elastic parameter that balances the area spectral efficiency (ASE) and energy efficiency (EE) of the network.
no code implementations • 20 Dec 2023 • Md Zobaer Islam, Sabit Ekin, John F. O'Hara, Gary Yen
In this study, we present a deep learning-based approach for time-series respiration data classification.
no code implementations • 2 Nov 2023 • Md Zobaer Islam, Brenden Martin, Carly Gotcher, Tyler Martinez, John F. O'Hara, Sabit Ekin
In this study, we present a non-contact respiratory anomaly detection method using incoherent light-wave signals reflected from the chest of a mechanical robot that can breathe like human beings.
no code implementations • 1 May 2023 • Mostafa Ibrahim, Huseyin Arslan, Hakan Ali Cirpan, Sabit Ekin
This paper proposes a novel time-frequency warped waveform for short symbols, massive machine-type communication (mMTC), and internet of things (IoT) applications.
no code implementations • 19 Apr 2023 • Md Zobaer Islam, Sabit Ekin, John F. O'Hara
The increasing demand for wireless sensing systems has led to the exploration of alternative technologies to overcome the spectrum scarcity of traditional approaches based on radio frequency (RF) waves or microwaves.
no code implementations • 14 Jan 2023 • Md Zobaer Islam, Li Yu, Hisham Abuella, John F. O'Hara, Christopher Crick, Sabit Ekin
In this study, we present a wireless (non-contact) gesture recognition method using only incoherent light wave signals reflected from a human subject.
no code implementations • 10 Jan 2023 • Russ Messenger, Md Zobaer Islam, Matthew Whitlock, Erik Spong, Nate Morton, Layne Claggett, Chris Matthews, Jordan Fox, Leland Palmer, Dane C. Johnson, John F. O'Hara, Christopher J. Crick, Jamey D. Jacob, Sabit Ekin
Highway work zones are susceptible to undue accumulation of motorized vehicles which calls for dynamic work zone warning signs to prevent accidents.
no code implementations • 9 Jan 2023 • Hisham Abuella, Md Zobaer Islam, Russ Messenger, John F. O'Hara, Sabit Ekin
In this letter, a simplified path loss model that is mathematically more tractable is proposed for vehicular sensing and communication systems that use visible light technology.
no code implementations • 9 Jan 2023 • Md Zobaer Islam, Brenden Martin, Carly Gotcher, Tyler Martinez, John F. O'Hara, Sabit Ekin
The random forest model achieved the highest classification accuracy of 96. 75% with data collected at a 0. 5m distance.
no code implementations • 29 Mar 2022 • Waseem Raza, Ethan Abele, John OHara, Behnaz Sadr, Peter LoPresti, Ali Imran, Wooyeol Choi, Ickhyun Song, Serhat Altunc, Obadiah Kegege, Sabit Ekin
The prospect of mankind returning to the Moon has garnered a great amount of attention in recent years.
no code implementations • 1 Apr 2021 • Karl Strecker, Sabit Ekin, John OHara
A theoretical framework and numerical simulations quantifying the impact of atmospheric group velocity dispersion on wireless terahertz communication link error rate were developed based upon experimental work.
no code implementations • 1 Apr 2021 • Russ Messenger, Karl Strecker, Sabit Ekin, John O'Hara
This work investigates the temporal dispersion of a wireless terahertz communication signal caused by reflection from a rough (diffuse) surface, and its subsequent impact on symbol error rate versus data rate.
no code implementations • 20 Jul 2020 • Sabit Ekin, John F. O'Hara, Emrah Turgut, Nicole Colston, Jeffrey L. Young
It is also intended to pique student interest by allowing them to personally assemble, operate, and explore a light-based wireless communication system.
no code implementations • 16 Jul 2020 • Li Yu, Hisham Abuella, Md Zobaer Islam, John F. O'Hara, Christopher Crick, Sabit Ekin
In this paper, we demonstrate the ability to recognize hand gestures in a non-contact, wireless fashion using only incoherent light signals reflected from a human subject.
no code implementations • 5 Jul 2020 • Hisham Abuella, Mohammed Elamassie, Murat Uysal, Zhengyuan Xu, Erchin Serpedin, Khalid A. Qaraqe, Sabit Ekin
In parallel, visible light communication (VLC) has been proposed as an alternative solution, where a light source is used for both illumination and data transmission.
1 code implementation • 20 Jun 2020 • Amit Kachroo, Collin A. Thornton, Md Arifur Rahman Sarker, Wooyeol Choi, He Bai, Ickhyun Song, John O'Hara, Sabit Ekin
In this paper, millimeter wave (mmWave) wireless channel characteristics (Doppler spread and path loss modeling) for Unmanned Aerial Vehicles (UAVs) assisted communication is analyzed and studied by emulating the real UAV motion using a robotic arm.