Browsing by Author "(ORCID 0000-0001-5945-0813 & YÖK ID 124615) Uysal, Murat"
Now showing items 41-60 of 350
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Characterization of LEDs for visible-light communications
Kısacık, Rıfat; Yalcinkaya, A. D.; Pusane, A. E.; Baykas, T.; Uysal, Murat (SPIE, 2021-02)Recent advances in solid-state technologies have enabled the development of light-emitting diodes (LEDs) with favorable features such as long life expectancy, low-power consumption, and reduced heat dissipation. Visible-light ... -
Characterization of orbital angular momentum-multiplexed FSO channel in the presence of pointing errors
Elamassie, Mohammed; Tadayyoni, Hamed; Uysal, Murat (IEEE, 2023)Free space optical communication (FSO) uses laser transmitters at near-infrared wavelengths for line-of-sight wireless communication. Through the use of advanced laser beams instead of the conventional Gaussian-shaped beam, ... -
CoMP-based dynamic handover for vehicular VLC networks
Demir, Muhammet Selim; Eldeeb, Hossıen Badr; Uysal, Murat (IEEE, 2020-09)Visible light communication (VLC) has emerged as a potential wireless connectivity solution for infrastructure-to-vehicle networks where street lights can be configured to serve as access points. In this letter, we propose ... -
Comparative characterization of indoor VLC and MMW communications via ray tracing simulations
Hosseinabadi, Fahimeh Aghaei; Eldeeb, H. B.; Bariah, L.; Muhaidat, S.; Uysal, Murat (IEEE, 2023)The demand for ultra-high-speed indoor wireless connectivity is ever-increasing, which poses unique challenges for the next generation wireless communication system design. This has prompted the exploration of higher ... -
A comparative evaluation of propagation characteristics of vehicular VLC and MMW channels
Hosseinabadi, Fahimeh Aghaei; Eldeeb, H. B.; Uysal, Murat (IEEE, 2023)Vehicle-to-vehicle (V2V) communication is an underlying key technology to realize future intelligent transportation systems. Both millimeter wave (MMW) communication and visible light communication (VLC) are strong candidates ... -
Comparative performance evaluation of MIMO visible light communication systems
Damen, M. O.; Narmanlioglu, Omer; Uysal, Murat (IEEE, 2016)In this paper, we consider multiple-input multiple-output (MIMO) visible light communication (VLC) systems. The physical layer of VLC system builds upon optical orthogonal frequency division multiplexing (O-OFDM). Repetition ... -
Comparative performance evaluation of VLC, LTE and WLAN technologies in indoor environments
Zeshan, A.; Karbalayghareh, M.; Miramirkhani, F.; Uysal, Murat; Baykas, T. (IEEE, 2021)Recent years have seen an exponential rise in the demand for indoor wireless connections that have driven future generation networks to aim for higher data rates with extended coverage and affordable rates. The two most ... -
Composite fading model for aerial MIMO FSO links in the presence of atmospheric turbulence and pointing errors
Khallaf, H. S.; Kato, K.; Mohamed, E. M.; Sait, S. M.; Yanikomeroglu, H.; Uysal, Murat (IEEE, 2021-06)In this letter, we introduce accurate approximation expressions for composite fading channel model and outage probability of multiple-input multiple-output (MIMO) free space optical (FSO) link between two unmanned aerial ... -
Comprehensive study on UAV-based FSO links for high-speed train backhauling
Khallaf, H. S.; Uysal, Murat (The Optical Society, 2021-09-20)In this paper, we introduce the idea of using unmanned aerial vehicle (UAV)-based free-space optical communication systems to backhaul high-speed trains. We introduce a composite channel model that includes effects of both ... -
Cooperative BICM-OFDM systems for frequency-selective relay channels
Heidarpour, M. R.; Uysal, Murat (IEEE, 2011)In this paper, we consider a cooperative multi-carrier multi-relay system over frequency-selective fading channels. Specifically, we adopt the orthogonal frequency division multiplexing (OFDM) with bit-interleaved ... -
Cooperative communication techniques for future-generation HF radios
Uysal, Murat; Heidarpour, M. R. (IEEE, 2012-10)When Hurricane Katrina hit the Gulf Coast of the United States in 2005, it severely damaged the telecommunications infrastructure, isolating the area from the outside world. With all the high-end emergency communication ... -
Cooperative inter-vehicular communications in highway traffic
Feteiha, M. F.; Uysal, Murat; Ahmad, A. R. (2011)In this paper, we investigate the performance of a single relay assisted cooperative vehicular network in a highway traffic scenario. Source and relaying vehicles are assumed to be traveling in the same direction with ... -
Cooperative MIMO-OFDM based inter-vehicular visible light communication using brake lights
Narmanlıoğlu, Ömer; Turan, B.; Ergen, S. C.; Uysal, Murat (Elsevier, 2018-05)Inter-vehicular connectivity to enhance road safety and support highly autonomous driving is increasingly becoming popular. Despite the prevalent works on radio-frequency (RF) based vehicular communication schemes, visible ... -
Cooperative transmission for broadband vehicular networks over doubly selective fading channels
Feteiha, M.F.; Uysal, Murat (IEEE, 2012-06)Cooperative communication has been recently applied to vehicular networks to enable coverage extension and enhance link reliability through distributed spatial diversity. In this study, the authors investigate the performance ... -
Cooperative underwater acoustic communications
Al-Dharrab, S.; Uysal, Murat; Duman, T. M. (IEEE, 2013-07)This article presents a contemporary overview of underwater acoustic communication (UWAC) and investigates physical layer aspects on cooperative transmission techniques for future UWAC systems. Taking advantage of the ... -
Cooperative visible light communications
Narmanlioglu, Ömer; Caglar Kizilirmak, R.; Miramirkhani, Farshad; Uysal, Murat (Springer Science+Business Media, 2016)In this chapter, we explore the concept of cooperative transmissions in the context of visible light communications (VLC). An indoor office space is considered with two light sources; the one at the ceiling is connected ... -
Cooperative visible light communications with full-duplex relaying
Narmanlıoğlu, Ömer; Kizilirmak, R. Ç.; Miramirkhani, Farshad; Uysal, Murat (IEEE, 2017-06)In this paper, we investigate cooperative visible light communication (VLC) system where an intermediate light source acts as a relay terminal. We assume that relay terminal operates in full-duplex mode. In contrast to ... -
Coordinated beamforming design for multi-user multi-cell MIMO VLC networks
Naser, S.; Bariah, L.; Jaafar, W.; Muhaidat, S.; Al-Qutayri, M.; Uysal, Murat; Sofotasios, P. C. (IEEE, 2022-06)Inter-cell interference (ICI) and inter-user interference (IUI) constitute a major issue towards achieving the optimum spectral efficiency (SE) and energy efficiency (EE) performance in multi-cell visible light communication ... -
Coordinated interference management for visible light communication systems
Kashef, M.; Abdallah, M.; Qaraqe, K.; Haas, H.; Uysal, Murat (IEEE, 2015-11)In this paper, we consider the performance of a visible light communication (VLC) network with coordinated interference management. The VLC transmitters are allowed to coordinate their transmissions using one of two ... -
Coverage analysis of downlink MU-MIMO cellular networks
Arsal, Ali; Civanlar, Mehmet Reha; Uysal, Murat (IEEE, 2021-09)In this letter, we analyze the coverage performance of multi-user multiple-input multiple-output (MU-MIMO) downlink cellular networks. We model the locations of the base stations and mobile users using Poisson Point Processes ...
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