• Feedback-free adaptive modulation selection algorithm for FSO systems 

  Elamassie, Mohammed; Uysal, Murat (IEEE, 2021-09)

  Free space optical (FSO) communication systems experience turbulence-induced fading. As a possible solution to mitigate the effects of fading, adaptive transmission that allows the adjustment of transmission parameters ...

• Efficient coupling of down-converted photon pairs into single mode fiber 

  Kuniyil, Hashir Puthiyapurayil; Durak, Kadir (Elsevier, 2021-08-15)

  We present the analysis of the down-conversion emission profile from a critically phase-matched type-I nonlinear crystal. The emission profile of the down-conversion modes shows asymmetry in cylindrical coordinate system ...

• A stochastic value estimation tool for electric vehicle charging points 

  Poyrazoğlu, Göktürk; Göktürk, Elvin Çoban (Elsevier, 2021-07-15)

  A stochastic value estimation tool serves as a planning tool with embedded modules for electrical and financial valuation of electric vehicle charging points. The tool is developed in stochastic nature for selected service ...

• Multi-criteria decision model for the assessment of offshore wind energy potential of Tunisia 

  Zahmoul, Houda; El Sayed, Ahmad; Poyrazoğlu, Göktürk (IEEE, 2021-05-05)

  This paper investigates the potential for the development of offshore wind power plants in Tunisia. The goal of this research is to increase the possibility of using renewable energy available in the country and reduce the ...

• Semi- and fully-random access LUTs for smooth functions 

  Gener, Y. S.; Aydın, F.; Gören, S.; Uğurdağ, Hasan Fatih (Springer, 2020)

  Look-Up Table (LUT) implementation of complicated functions often offers lower latency compared to algebraic implementations at the expense of significant area penalty. If the function is smooth, MultiPartite table method ...

• Flexible generalized spatial modulation for visible light communications 

  Al-Nahhal, Mohamed; Başar, E.; Uysal, Murat (IEEE, 2021-01)

  Adaptive spatial modulation (ASM) varies the modulation size across the transmit light-emitting diodes (LEDs) to improve the overall spectral efficiency of visible light communication (VLC) systems. This article proposes ...

• Crucial topics in computer architecture education and a survey of textbooks and papers 

  Yıldız, A.; Gören, S.; Uğurdağ, Hasan Fatih; Aktemur, B.; Akdoğan, Taylan (International Association of Engineers, 2020)

  We have been teaching undergraduate computer architecture since 2012 in an unconventional way. Most undergraduate computer architecture courses are based on microprocessors, and they quickly move into advanced topics such ...

• Object ranging and sensing by temporal cross-correlation measurement 

  Kuniyil, Hashir Puthiyapurayil; Jam, Naser Chamani; Durak, Kadir (SPIE, 2020)

  We present a novel method to measure the range of an object in a lab setting. This is realised by utilizing the phase insensitive cross-correlation analysis of the probe and reference photons generated in a spontaneous ...

• Limited feedback channel estimation for multi-user massive mimo visible light communications 

  Narmanlıoğlu, Ömer; Uysal, Murat (IEEE, 2020)

  Building on the existing illumination infrastructure, visible light communication (VLC) utilizes light emitting diode (LED) luminaries as wireless access points. The presence of large number of ceiling lights in conference ...

• Predictor analysis for electricity price forecasting by multiple linear regression 

  Ülgen, Toygar; Poyrazoğlu, Göktürk (IEEE, 2020)

  This paper examines the multiple linear regression method on electricity price forecasting. Numerous predictors are analyzed to reduce the mean absolute percentage error. The training data includes the dates from September ...

• A platform for personal e-mobility with route forecasting 

  Kaya, Kamil; Poyrazoğlu, Göktürk (IEEE, 2020)

  This study reports a new e-mobility platform to construct effective usage of charging points by electric vehicle users to eliminate long charge durations. The e-mobility platform includes such subsystems as smartphones, ...

• Foreword 

  Sassatell, L.; Lee J.-S., J.-S.; Civanlar, Mehmet Reha (Association for Computing Machinery, Inc, 2020)

  N/A

• A flexible OLED VLC system for an office environment 

  Chaleshtori, Z. N.; Zvanovec, S.; Ghassemlooy, Z.; Eldeeb, Hossıen Badr; Uysal, Murat (IEEE, 2020)

  The potential use of flexible substrate-based organic light emitting diodes (OLEDs) as curved or rolled lighting sources offers news opportunities for the implementation of visible light communications (VLC) in indoor ...

• Channel modelling for light communications: Validation of ray tracing by measurements 

  Eldeeb, Hossıen Badr; Uysal, Murat; Mana, S. M.; Hellwig, P.; Hilt, J.; Jungnickel, V. (IEEE, 2020)

  Light communications, also denoted as LiFi, is promising for future wireless indoor networks. For performance evaluation, the IEEE P802.15.13 and P802.11bb standardization groups agreed upon channel models based on ...

• Multi-hop quantum key distribution with passive relays over underwater turbulence channels 

  Raouf, Amir Hossein Fahim; Safari, M.; Uysal, Murat (IEEE, 2020)

  Absorption, scattering, and turbulence experienced in underwater channels severely limit the range of quantum communications. In this paper, to overcome range limitations, we investigate a multi-hop underwater quantum key ...

• Experimental investigation of lens combinations on the performance of vehicular VLC 

  Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Eldeeb, Hossıen Badr; Uysal, Murat (IEEE, 2020)

  With the increasing adoption of LEDs in outdoor light sources such as traffic lights, street lights and vehicle headlamps, visible light communication (VLC) has the promise to become a major enabler for vehicle-to-vehicle ...

• MAC layer performance of multi-hop vehicular VLC networks with CSMA/CA 

  Eldeeb, Hossıen Badr; Adam, Evşen Yanmaz; Uysal, Murat (IEEE, 2020)

  Majority of works in the field of vehicular visible light communication (VLC) networks are based on some ideal assumptions. Particularly, the ideal Lambertian pattern is assumed for channel modeling and only a simple ...

• Vehicle-to-infrastructure visible light communications: Channel modelling and capacity calculations 

  Eldeeb, Hossıen Badr; Elamassie, Mohammed; Uysal, Murat (IEEE, 2020)

  In this paper, we investigate the performance of a visible light communication (VLC) system for vehicle-to-infrastructure (V2I) connectivity. Two headlamps of the vehicle serve as wireless transmitters while photodetectors ...

• X- To Ka- Band cryogenic LNA module for very long baseline interferometry 

  Fung, A.; Samoska, L.; Bowen, J.; Montanez, S.; Kooi, J.; Soriano, M.; Jacobs, C.; Manthena, R.; Hoppe, D.; Akgiray, Ahmed Halid; Lai, R.; Mei, X.; Barsky, M. (IEEE, 2020)

  We report a new result of a packaged low noise amplifier (LNA) module with wide bandwidth of 5 to 35 GHz and low noise temperature performance of 10 -18 K, while operated at 10 K ambient. The LNA used 3-stages of sub-50 ...

• Theoretical modelling of smart meter privacy protection with multi-meter Energy Routing 

  Ergen, Cankut; Gülbahar, Burhan (IEEE, 2020-08)

  Potential of intrusion during smart meter data collection is an important problem for household privacy in next-generation smart homes. There are various privacy protection methods such as hiding the real usage with renewable ...

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