Browsing Faculty of Engineering by OzU Authors "Elamassie, Mohammed"
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Aerosol attenuation model for high altitude UAV-based FSO links
Elamassie, Mohammed; Uysal, Murat (IEEE, 2022)Free space optical (FSO) communication is well positioned to address connectivity needs in ground-UAV, inter-UAV and UAV-ground links. An accurate performance analysis of airborne FSO links requires the use of proper path ... -
Analysis and optimization of the network throughput in IEEE 802.15.13 based visible light communication networks
Bülbül, Yusuf; Elamassie, Mohammed; Baykas, T.; Uysal, Murat (IEEE, 2021)In line with the growing interest on visible light communication (VLC), IEEE has initiated standardization efforts on this emerging technology. In this work, we consider IEEE 802.15.13 Optical Wireless Personal Area Networks ... -
Bit-error-rate performance of an underwater wireless optical link under misalignment and turbulence effects
Ijeh, I. C.; Khalighi, M. A.; Elamassie, Mohammed; Hranilovic, S.; Uysal, Murat (IEEE, 2022)Underwater wireless optical communication (UWOC) links are highly susceptible to the degrading effects of oceanic turbulence and beam misalignment. In this paper, considering a silicon photo-multiplier at the receiver, we ... -
Capacity analysis of NOMA-enabled underwater VLC networks
Elamassie, Mohammed; Bariah, L.; Uysal, Murat; Muhaidat, S.; Sofotasios, P. C. (IEEE, 2021)Visible light communication (VLC) has recently emerged as an enabling technology for high capacity underwater wireless sensor networks. Non-orthogonal multiple access (NOMA) has been also proven capable of handling a massive ... -
Drizzle attenuation model for visible and infrared wavelengths
Elamassie, Mohammed; Uysal, Murat (IEEE, 2022)In an outdoor environment, the transmitted optical signal is affected by the atmospheric particles that may scatter or absorb light such as drizzle, rain, snow, fog, and aerosols. Various earlier studies have attempted to ... -
Effect of sea waves on vertical underwater visible light communication links
Elamassie, Mohammed; Sait, S. M.; Uysal, Murat (IEEE, 2023-04)Underwater visible light communication (VLC) has been proposed to deal with emerging high bandwidth underwater applications. Initial research works on underwater VLC are based on the assumption that both transmitter and ... -
Experimental characterization of multi-hop vehicular VLC systems
Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Uysal, Murat (IEEE, 2021)In vehicular visible light communication (VLC), the reliable communication distance may be relatively short due to its dependence on many factors including the weather condition. This necessitates the use of relay-assisted ... -
Experimental evaluation of a software defined visible light communication system
Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Kebapçı, Burak; Uysal, Murat (IEEE, 2020)Visible light communication (VLC) allows the dual use of light-emitting diodes (LEDs) for illumination and communication purposes. With its large bandwidth and immunity to electromagnetic interference, VLC can be used as ... -
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 ... -
An experimental study of underwater visible light communication
Yıldız, Samet; Baǧlıca, İbrahim; Kebapçı, B.; Elamassie, Mohammed; Uysal, Murat (IEEE, 2022)Visible light communication (VLC) has emerged as a powerful high-data-rate alternative to conventional underwater acoustic technology for short and medium link distances. In this paper, we develop an experimental underwater ... -
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 ... -
Finite-SNR diversity gain analysis of FSO systems over gamma-gamma fading channels with pointing errors
Elamassie, Mohammed; Sait, S. M.; Uysal, Murat (IEEE, 2021-06)Free space optical (FSO) communication systems are subject to turbulence-induced fading as a result of fluctuations in the refractive index. Gamma-Gamma (GG) distribution is commonly used in the literature to characterize ... -
Hybrid RF/VLC systems: A comprehensive survey on network topologies, performance analyses, applications, and future directions
Abuella, H.; Elamassie, Mohammed; Uysal, Murat; Xu, Z.; Serpedin, E.; Qaraqe, K. A.; Ekin, S. (IEEE, 2021)Wireless communications refer to data transmissions in unguided propagation media through the use of wireless carriers such as radio frequency (RF) and visible light (VL) waves. The rising demand for high data rates, ... -
Infrastructure-to-vehicle visible light communications: Channel modelling and performance analysis
Eldeeb, Hossien Badr Hossien; Elamassie, Mohammed; Sait, S. M.; Uysal, Murat (IEEE, 2022-03)Visible light communication (VLC) has emerged as a potential wireless connectivity solution for infrastructure-to-vehicle (I2V) communications. In this paper, we investigate the performance of I2V VLC systems with access ... -
Non-orthogonal multiple access-based underwater VLC systems in the presence of turbulence
Bariah, L.; Elamassie, Mohammed; Muhaidat, S.; Sofotasios, P. C.; Uysal, Murat (IEEE, 2022-02)The promising potential of underwater applications in visible light communication (VLC) systems has recently gained considerable research attention, as an efficient technology for enabling high data rate, massive connectivity, ... -
Operation altitude optimization of solar-powered rotary-wing UAVs for FSO backhauling
Mahmoodi, Khadijeh Ali; Elamassie, Mohammed; Uysal, Murat (IEEE, 2023)Free space optical communication (FSO) has emerged as an alternative backhauling technology. It provides a line-of-sight (LOS) link with a capacity comparable to fiber optics and much higher than those that can be supported ... -
Outage performance analysis of vertical underwater VLC links
Elamassie, Mohammed; Uysal, Murat (IEEE, 2022)In this paper, we investigate the outage performance of vertical stratified underwater optical links in the presence of moderate/strong turbulence conditions. Specifically, we consider the cascaded Gamma-Gamma turbulence ... -
Outage probability analysis of a vertical underwater wireless optical link subject to oceanic turbulence and pointing errors
Ijeh, I. C.; Khalighi, M. A.; Elamassie, Mohammed; Hranilovic, S.; Uysal, Murat (Optica Publishing Group, 2022-06-01)The reliability of an underwater wireless optical communication (UWOC) network is seriously impacted by beam misalignment between transmitters (Txs) and receivers (Rxs). Also, the performance of UWOC systems can be affected ... -
Path selection for relay-assisted underwater visible light communication systems
Elamassie, Mohammed; Uysal, Murat (IEEE, 2022)In this paper, we consider underwater visible light communication (UVLC) system with M parallel relaying paths where each path has N decode-and-forward (DF) relays. One path (not necessarily the best one) out of M paths ... -
Performance analysis and optimization of cascaded I2V and V2V VLC links
Eldeeb, Hossien Badr Hossien; Elamassie, Mohammed; Uysal, Murat (IEEE, 2021-09-06)In smart transportation systems, the infrastructures such as traffic lights are expected to transmit different safety messages according to the receptors (i.e., vehicle, pedestrian, platoon, etc.). The focus of this study ...
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