Browsing by Author "Ho, T. D."

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    Is visible light communications suitable for using in lane-changing maneuvers?
    (IEEE, 2023) Meghraoui, A.; Tayebi, M. L.; Besseghier, M.; Yahia, S.; Eldeeb, Hossıen Badr; Vo, V. N.; Ho, T. D.; Electrical & Electronics Engineering; ELDEEB, Hossien Badr Hossien
    Lane-changing behaviour is a crucial aspect of driving that requires a safe and efficient driving environment. To achieve this, an accurate perception of the surrounding vehicles and environment is essential, enabling the vehicle to make informed lane-changing decisions and ultimately improving the process's reliability and success rate. This paper uses a non-sequential ray channel modelling approach to investigate visible light communication (VLC) in lane change applications. The vehicle's headlamps and taillights act as wireless transmitters, while photo-detectors on other vehicles act as wireless receivers. The system performance is evaluated in terms of bit error rate (BER), spectral efficiency, and packet delivery ratio (PDR) for different inter-vehicle distances and lateral shifts. The effect of vehicle velocity on the system performance is also investigated. The results demonstrated that VLC could be qualified for exchanging data between the cars for a safe lane change. It also showed significant vehicle position and velocity impacts on the system performance during this process.
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    Performance investigation of streetlight-to-vehicle visible light communication
    (IEEE, 2023) Eldeeb, Hossıen Badr; Elamassie, Mohammed; Muhaidat, S.; Uysal, Murat; Ho, T. D.; Electrical & Electronics Engineering; ELDEEB, Hossien Badr Hossien; ELAMASSIE, Mohammed; UYSAL, Murat
    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 internet services and safety messages to road vehicles. With their asymmetrical radiation patterns, Streetlight antennas are exceedingly different from indoor lighting modules, which deploy ceiling luminaries with ideal Lambertian ones. Therefore, a realistic channel modelling for streetlight-to-vehicle VLC system should be deployed for precise performance insights. We consider a streetlight-to-vehicle VLC system in a two-lane road with multiple light poles uniformly distributed on both sides. Based on that, we investigate the system performance of the streetlight-to-vehicle VLC system in terms of the bit-error-rate (BER) and outage distance and explore the effect of different transceivers and system parameters on the performance. These consider the transmission modulation order, receiver size, height of the streetlight poles, and their corresponding intermediate distances.