Browsing by Author "Elamassie, Mohammed"
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Adaptive DCO-OFDM for underwater visible light communications
Elamassie, Mohammed; Karbalayghareh, Mehdi; Miramirkhani, Farshad; Uysal, Murat (IEEE, 2019-04)Visible light communication (VLC) has been introduced as a complementary technology to acoustic communications for underwater applications. Underwater VLC can achieve much higher data rates sufficiently high for real-time ... -
Adaptive OFDM-based acoustic underwater transmission: system design and experimental verification
Sadeghi, Mohammad; Elamassie, Mohammed; Uysal, Murat (IEEE, 2017)In this paper, we present the design and implementation of a software defined orthogonal frequency division multiplexing (OFDM)-based underwater acoustic (UWA) communication system with link adaptation. Our system ... -
Asymptotic performance of generalized transmit laser selection over lognormal turbulence channels
Elamassie, Mohammed; Uysal, Murat (IEEE, 2020-08)In free space optical communication systems, transmit laser selection (TLS) has been proposed as an efficient fading-mitigation technique over turbulence channels. In TLS, the transmitter is equipped with a number of laser ... -
Channel modeling and performance characterization of underwater visible light communications
Elamassie, Mohammed; Miramirkhani, Farshad; Uysal, Murat (IEEE, 2018-07-03)Underwater visible light communication (UVLC) has emerged as an attractive complementary solution to long-range acoustic communication and is able to achieve much higher data speeds. In this paper, we investigate the ... -
Diversity gain analysis of underwater vertical MIMO VLC links in the presence of turbulence
Yılmaz, Anıl; Elamassie, Mohammed; Uysal, Murat (IEEE, 2019)To satisfy the demands of high data rate underwater applications such as image and real-time video transmission, underwater visible light communication (UVLC) has emerged as an alternative to acoustic signaling. One of the ... -
Effect of eddy diffusivity ratio on underwater optical scintillation index
Elamassie, Mohammed; Uysal, Murat; Baykal, Y.; Abdallah, M.; Qaraqe, K. (The Optical Society, 2017-10-11)The performance of underwater optical wireless communication systems is severely affected by the turbulence that occurs due to the fluctuations in the index of refraction. Most previous studies assume a simplifying, yet ... -
Effect of fog and rain on the performance of vehicular visible light communications
Elamassie, Mohammed; Karbalayghareh, Mehdi; Miramirkhani, Farshad; Kızılırmak, R. Ç.; Uysal, Murat (IEEE, 2018-07-20)In Intelligent Transportation Systems, visible light communication (VLC) has emerged as a powerful candidate to enable wireless connectivity in vehicle-to-vehicle (V2V) and vehicle-to- infrastructure (V2I) links. While VLC ... -
Evaluation of wind power for electrical energy generation in the mediterranean coast of Palestine for 14 years
Badawi, A. S. A.; Hasbullaha, N. F.; Yusoff, Y.; Khan, S.; Hashim, A.; Zyoud, A.; Elamassie, Mohammed (Institute of Advanced Engineering and Science, 2019-08)The generation, distributionand transmission of electricity in Palestine have recently emerged as major issues. This study comprehensively assesses the production of wind energy and the estimation of wind energy potential ... -
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 evaluation of unipolar OFDM VLC system on software defined platform
Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Uysal, Murat; Kınav, E. (IEEE, 2019)With unique features and advantages, visible light communication (VLC) is considered as a powerful complementary wireless access technology to radio frequency solutions such as WiFi. To handle the frequency-selectivity of ... -
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 ... -
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 ... -
FPGA based DCO-OFDM PHY transceiver for VLC systems
Levent, V. E.; Sağlam, Gürol; Uğurdağ, Hasan Fatih; Annafianto, Nur Fajar Rizqi; Aydın, Furkan; Tesfay, Shewit Weldu; Mohamed, Bassam Aly Abdelrahman; Elamassie, Mohammed; Kebapçı, Burak; Uysal, Murat (IEEE, 2019)Satisfying the demand for high bandwidth and low latency in Visible Light Communication (VLC) systems is a difficult challenge. VLC channels exhibit frequency-selectiveness at peak-speeds. This phenomenon generates a serious ... -
Incremental diversity order for characterization of FSO communication systems over lognormal fading channels
Elamassie, Mohammed; Uysal, Murat (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 ... -
Performance characterization of underwater visible light communication
Elamassie, Mohammed; Miramirkhani, Farshad; Uysal, Murat (IEEE, 2019-01)In this paper, we investigate the performance limits of underwater visible light communication (UVLC) systems. We first develop a closed-form path loss expression as a function of transceiver parameters and water type. We ... -
Performance characterization of vertical underwater VLC links in the presence of turbulence
Elamassie, Mohammed; Uysal, Murat (IEEE, 2018-09-24)In this paper, we investigate the performance of vertical underwater visible light communication (VLC) links. In vertical links, water properties such as temperature and salinity change with the depth. This leads to changes ... -
Practical electrical energy production to solve the shortage in electricity in Palestine and Pay Back period
Badawi, A. S. A.; Hasbullah, N. F.; Yusoff, S.; Hashim, A.; Elamassie, Mohammed (Institute of Advanced Engineering and Science, 2019)In this paper power energy had been estimated based on actual wind speed records in a coastal city in Palestine Ashdod. The main aims of this study to determine the feasibility of wind turbine and to estimate payback period. ... -
Resource allocation for downlink OFDMA in underwater visible light communications
Elamassie, Mohammed; Karbalayghareh, Mehdi; Miramirkhani, Farshad; Uysal, Murat; Abdallah, M.; Qaraqe, K. (IEEE, 2019-06)As a wireless connectivity solution with low latency and high capacity, visible light communication (VLC) is particularly attractive for high-speed underwater applications such as image or real-time video transmission. In ...
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