Browsing Faculty of Engineering by Author "(ORCID 0000-0001-5945-0813 & YÖK ID 124615) Uysal, Murat"
Now showing items 321-340 of 349
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UAV-assisted free space optical communication system with amplify-and-forward relaying
Dabiri, M. T.; Khankalantary, S.; Piran, M. J.; Ansari, I. S.; Uysal, Murat; Saad, W.; Hong, C. S. (IEEE, 2021-09)In this paper, the performance of an unmanned aerial vehicle (UAV)-based free-space optical relay system with amplify-and-forward relaying is analyzed. In particular, the statistical probability of end-to-end signal-to-noise ... -
UAV-based FSO communications for high speed train backhauling
Khallaf, Haitham S.; Uysal, Murat (IEEE, 2019)In line with the increasing number of high speed train (HST) commuters and their demand for mobile data, railways operators expore means of providing high speed on-board wireless access. The data from all train cars are ... -
Ultraviolet communications for ground-to-air links
Tadayyoni, Hamed; Uysal, Murat (IEEE, 2019)Ultraviolet (UV) communication enables non-line-of-sight (NLOS) wireless connectivity through strong molecular and aerosol scattering. Due to their NLOS nature, UV links bring robustness to blockage or shadowing and relax ... -
Ultraviolet communications for unmanned aerial vehicle networks
Tadayyoni, Hamed; Ardakani, M. H.; Heidarpour, A. R.; Uysal, Murat (IEEE, 2022)Due to the strong scattering, ultraviolet (UV) communication links enable non-line-of-sight (NLOS) outdoor connectivity and relax the pointing, acquisition, and tracking requirements encountered in infrared links. This ... -
Underwater visible light communications in cascaded gamma-gamma turbulence
Elamassie, Mohammed; Sait, S. M.; Uysal, Murat (IEEE, 2018)In this paper, we investigate the performance of vertical underwater visible light communication (VLC) links in the presence of moderate and strong turbulence conditions using Gamma-Gamma (GG) probability density function. ... -
Unified performance analysis of multi-hop FSO systems over double generalized gamma turbulence channels with pointing errors
Ashrafzadeh, B.; Zaimbashi, A.; Soleimani-Nasab, E.; Uysal, Murat (IEEE, 2020-11)Free space optical (FSO) communication systems provide high bandwidth in unregulated spectrum and act as a powerful line-of-sight wireless connectivity solution. The performance of FSO systems can be seriously impaired by ... -
Unified resource allocation and mobility management technique using particle swarm optimization for VLC networks
Demir, Muhammet Selim; Sait, S. M.; Uysal, Murat (IEEE, 2018-12)In this paper, we present a unified resource allocation and mobility management algorithm based on particle swarm optimization (PSO) for indoor visible light communication (VLC) networks. We consider a VLC network where ... -
Unmanned-aerial-vehicle-assisted cooperative communications for visible light communications-based vehicular networks
Kalikulov, N.; Kizilirmak, R. Ç.; Uysal, Murat (SPIE, 2019-08)We propose and investigate cooperative visible light communications (VLC) enabled vehicular network architecture with an unmanned aerial vehicle (UAV) relay. In the proposed system, a UAV equipped with an onboard photodetector ... -
Utilization of an oled-based vlc system in office, corridor, and semi-open corridor environments
Chaleshtori, Z. N.; Ghassemlooy, Z.; Eldeeb, Hossıen Badr; Uysal, Murat; Zvanovec, S. (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 ... -
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 ... -
Vehicle-to-vehicle visible light communication: How to select receiver locations for optimal performance?
Eldeeb, Hossıen Badr; Uysal, Murat (IEEE, 2019)Visible light communication (VLC) utilizes vehicle headlights as wireless transmitters and has emerged as a strong candidate for vehicle-to-vehicle (V2V) communications. In majority of works on V2V VLC systems, a common ... -
Vehicular visible light communication with low beam transmitters in the presence of vertical oscillation
Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Uysal, Murat (IEEE, 2023-08)The availability of light-emitting diodes (LEDs) in vehicle exteriors makes possible the use of visible light communication (VLC) as a vehicle-to-vehicle (V2V) wireless connectivity solution. While there has been a growing ... -
Vehicular visible light communications with SPAD receivers
Karbalayghareh, Mehdi; Miramirkhani, Farshad; Safari, M.; Uysal, Murat (IEEE, 2019)Light emitting diodes (LEDs) are increasingly used in automotive exterior lighting. The expected wide availability of LED-based front and back lights makes visible light communication (VLC) a natural vehicular connectivity ... -
Vehicular visible light communications: The impact of taillight radiation pattern
Eldeeb, Hossıen Badr; Eso, E.; Uysal, Murat; Ghassemlooy, Z.; Zvanovec, S.; Sathian, J. (IEEE, 2020-09)We investigate the path-loss of vehicular visible light communications based on the radiation pattern of a commercial car taillight. The measured pattern is incorporated into a ray-tracing model and simulation results ... -
Vehicular VLC channel model for a low-beam headlight transmitter
Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Uysal, Murat (IEEE, 2021-09-06)The availability of LED-based headlights and taillights allows visible light communication (VLC) to be considered as a powerful wireless access technology for vehicle-to-vehicle (V2V) communications. A crucial system design ... -
Vehicular VLC system with selection combining
Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Uysal, Murat (IEEE, 2022-11)The availability of LED-based headlights and taillights makes possible the use of visible light communication (VLC) as a wireless access technology for vehicle-to-vehicle (V2V) communications. A critical concern to establish ... -
Vehicular VLC: A ray tracing study based on measured radiation patterns of commercial taillights
Eldeeb, Hossıen Badr; Eso, E.; Jarchlo, E. A.; Zvanovec, S.; Zvanovec, S.; Uysal, Murat; Ghassemlooy, Z.; Sathian, J. (IEEE, 2021-08-15)In this letter, we investigate the performance of vehicular visible light communications based on the radiation patterns of different commercial taillights (TLs) using non-sequential ray tracing simulations. Our simulation ... -
Vertical underwater visible light communication links: Channel modeling and performance analysis
Elamassie, Mohammed; Uysal, Murat (IEEE, 2020-10)Underwater visible light communication (UVLC) has been introduced to support emerging high data rate applications such as real-time image and video transmission. Initial works on UVLC build upon the assumption of fixed ... -
Vertical underwater VLC links over cascaded gamma-gamma turbulence channels with pointing errors
Elamassie, Mohammed; Uysal, Murat (IEEE, 2019)Underwater visible light communication (UVLC) is a high capacity wireless connectivity solution with low latency, particularly appealing for real-time underwater video and image transmission. While attenuation and geometrical ... -
ViLDAR-Visible light sensing-based speed estimation using vehicle headlamps
Abuella, H.; Miramirkhani, F.; Ekin, S.; Uysal, Murat; Ahmed, S. (IEEE, 2019-11)The introduction of light emitting diodes (LED) in automotive exterior lighting systems provides opportunities to develop viable alternatives to conventional communication and sensing technologies. Most of the advanced ...
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