Browsing Faculty of Engineering by OzU Authors "Elamassie, Mohammed"
Now showing items 21-35 of 35
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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 ... -
Performance investigation of streetlight-to-vehicle visible light communication
Eldeeb, Hossıen Badr; Elamassie, Mohammed; Muhaidat, S.; Uysal, Murat; Ho, T. D. (IEEE, 2023)This paper investigates streetlight-to-vehicle visible light communication (VLC) system performance for outdoor broadcasting applications. We adopt streetlight lamps as optical internet-of-thing (IoT) devices broadcasting ... -
Pilot-aided channel estimation for RIS-assisted wireless systems over time-varying fading channels
Azizzadeh, Maryam; Elamassie, Mohammed; Uysal, Murat (IEEE, 2023)Reconfigurable intelligent surfaces (RISs) have emerged as a promising technology for improving wireless communication system performance. RISs can adjust signals' phase and amplitude, resulting in improved signal strength. ... -
Reflector-aided underwater optical channel modeling
Yıldız, Samet; Bağlıca, İbrahim; Kebapçı, Burak; Elamassie, Mohammed; Uysal, Murat (Optica Publishing Group, 2022-10-15)Underwater visible light communication (UVLC) has been proposed as a high-speed alternative to acoustic signaling. While most UVLC systems are configured to work in line-of-sight (LOS) conditions, it is also possible to ... -
Spatial power spectrum of natural water turbulence with any average temperature, salinity concentration, and light wavelength
Yao, J. R.; Elamassie, Mohammed; Korotkova, O. (The Optical Society, 2020-10-01)The power spectrum of water optical turbulence is shown to vary with its average temperature < T > and average salinity concentration < S >, as well as with light wavelength lambda. This study explores such variations for ... -
Statistical characterization of FSO-based airborne backhaul links
Elamassie, Mohammed; Uysal, Murat (IEEE, 2023)Backhaul solutions with large capacity and global coverage are of great importance for 6G wireless communication networks. With its ultra-large bandwidth and immunity to electromagnetic interference, free-space optical ... -
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 ... -
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 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 ... -
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 ...
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