Electrical & Electronics Engineering: Recent submissions
Now showing items 241-260 of 695
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Multi-hop quantum key distribution with passive relays over underwater turbulence channels
(The Optical Society, 2020-12-01)Absorption, scattering, and turbulence experienced in underwater channels severely limit the range of quantum communication links. In this paper, as a potential solution to overcome range limitations, we investigate a ... -
Utilization of an oled-based vlc system in office, corridor, and semi-open corridor environments
(MDPI, 2020-12-01)Organic light emitting diodes (OLEDs) have recently received growing interest for their merits as soft light and large panels at a low cost for the use in public places such as airports, shopping centers, offices, and train ... -
Live multicast video streaming from drones: an experimental study
(Springer Nature, 2020-01-01)We present and evaluate a multicast framework for point-to-multipoint and multipoint-to-point-to-multipoint video streaming that is applicable if both source and receiver nodes are mobile. Receiver nodes can join a multicast ... -
Preparation and characterization of freely-suspended graphene nanomechanical membrane devices with quantum dots for point-of-care applications
(MDPI, 2020-01-01)We demonstrate freely suspended graphene-based nanomechanical membranes (NMMs) as acoustic sensors in the audible frequency range. Simple and low-cost procedures are used to fabricate NMMs with various thicknesses based ... -
Deep Q-learning based optimization of VLC systems with dynamic time-division multiplexing
(IEEE, 2020)The traditional method to solve nondeterministic-polynomial-time (NP)-hard optimization problems is to apply meta-heuristic algorithms. In contrast, Deep Q Learning (DQL) uses memory of experience and deep neural network ... -
Connectivity considerations for mission planning of a search and rescue drone team
(TÜBİTAK, 2020)In this paper, we analyze the mission success performance and mission times of centralized, distributed, and hybrid path-planning methods for a drone team whose mission is to find a target and inform the ground control. ... -
Joint bit and power loading for adaptive MIMO OFDM VLC systems
(Wiley, 2020-07)Visible light communication (VLC) is a short-range wireless access technology based on the dual use of illumination structure. The frequency-selective characteristics of VLC channels motivate the use of orthogonal frequency ... -
Performance analysis of quantum key distribution in underwater turbulence channels
(The Optical Society, 2020)The current literature on quantum key distribution is limited mainly to transmissions over fiber optic, atmospheric, or satellite links and is not directly applicable to underwater environments with different channel ... -
Theory of quantum path entanglement and interference with multiplane diffraction of classical light sources
(MDPI, 2020-02-21)Quantum history states were recently formulated by extending the consistent histories approach of Griffiths to the entangled superposition of evolution paths and were then experimented with Greenberger-Horne-Zeilinger ... -
Coverage of a shopping mall with flexible OLED-based visible light communications
(The Optical Society, 2020-03-30)Visible light communications (VLC) can utilize light-emitting diodes (LEDs) to provide illumination and a safe and low-cost broadcasting network simultaneously. In the past decade, there has been a growing interest in using ... -
Investigating voice as a biomarker: Deep phenotyping methods for early detection of Parkinson's disease
(Elsevier, 2020-04)Voice technology has grown tremendously in recent years and using voice as a biomarker has also been gaining evidence. We demonstrate the potential of voice in serving as a deep phenotype for Parkinson's Disease (PD), the ... -
Incremental diversity order for characterization of FSO communication systems over lognormal fading channels
(IEEE, 2020-04)Free space optical (FSO) communication systems experience atmospheric turbulence-induced fading, which is typically modelled by lognormal distribution. Since the decreasing rate of error probability over lognormal fading ... -
Channel modelling for indoor visible light communications
(Royal Society Publishing, 2020-04-17)Visible light communication (VLC) allows the dual use of light-emitting diodes (LEDs) for wireless communication purposes in addition to their primary purpose of illumination. As in any other communication system, realistic ... -
Equivalent circuit for capacitive micromachined ultrasonic transducers to predict anti-resonances
(Springer Nature, 2020-12)Equivalent circuit models have been long used to evaluate the dynamics of the capacitive micromachined ultrasonic transducer (CMUT). An important parameter in the characterization of a CMUT is the anti-resonance frequency, ... -
Low-cost thin-film passive RFID circuits and detector system
(Cambridge University Press, 2020-06)This paper discusses the design of chip-less RFID tags of a standard pocket size of 69 mm by 156 mm. These tags are based on lumped elements of copper metal traces constructed on a thin polyamide flexible substrate. Moreover, ... -
Experimental investigation on the effect of wavelength on aperture averaging in FSO communications
(The Optical Society, 2020-06-01)Atmospheric turbulence is a major impairment in free-space optical (FSO) communication systems. Based on the fact that the size of receiver aperture is much larger than operation wavelength, aperture averaging extracts ... -
Voltammetric determination of α-lipoic acid using poly(Vanillin) modified platinum electrode
(University of Tehran, 2020-06)In the present study electrochemical detection of alpha-lipoic acid (alpha-LA) was carried out with a poly(Vanillin) modified platinum electrode p(VA)/PtE in Brinton Robinson buffer (BR) solution. The platinum electrode ... -
Channel modelling and performance limits of vehicular visible light communication systems
(IEEE, 2020-07)Visible light communication (VLC) has been proposed as an alternative or complementary technology to radio frequency vehicular communications. Front and back vehicle lights can serve as wireless transmitters making VLC a ... -
A 1GS/s, 9-bits DAC interleaved (2+1)-bit then 2-bit per cycle SAR ADC
(Istanbul University, 2020-07)This paper presents a high speed Successive Approximation Register Analog to Digital Converter (SAR ADC) for low-noise low-power satellite transceiver applications. The system is a (2+1) then 2-bit per cycle SAR ADC of ... -
Theory of quantum path computing with Fourier optics and future applications for quantum supremacy, neural networks and nonlinear Schrödinger equations
(Nature Research, 2020-07-03)The scalability, error correction and practical problem solving are important challenges for quantum computing (QC) as more emphasized by quantum supremacy (QS) experiments. Quantum path computing (QPC), recently introduced ...
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