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Ambient light noise is a major cause of performance degradation in visible light communication (VLC) systems. It affects outdoor VLC applications in terms of signal to noise ratio (SNR) and bit error rates (BER). Sunlight plays an important role in increasing the effects of ambient noise on VLC signal. VLC is suggested as a promising communication mode between two vehicles, in vehicle-to-vehicle (V2V) communication systems. In this paper, we discuss and propose an efficient method to overcome the effect of sunlight irradiance in VLC links used for V2V communication. We propose K-Nearest Neighbour (KNN), a machine learning-based adaptive filter to combat the effects of solar irradiance. Our smart filter can adapt itself according to varying noise conditions and help to achieve acceptable BER in support of reliable communications.
Hasan Farahneh; Fatima Hussian; Xavier Fernando. De-Noising Scheme for VLC-Based V2V Systems; A Machine Learning Approach. Procedia Computer Science 2020, 171, 2167 -2176.
AMA StyleHasan Farahneh, Fatima Hussian, Xavier Fernando. De-Noising Scheme for VLC-Based V2V Systems; A Machine Learning Approach. Procedia Computer Science. 2020; 171 ():2167-2176.
Chicago/Turabian StyleHasan Farahneh; Fatima Hussian; Xavier Fernando. 2020. "De-Noising Scheme for VLC-Based V2V Systems; A Machine Learning Approach." Procedia Computer Science 171, no. : 2167-2176.
Reliable vehicular communications is fast becoming a necessity. Vehicle to infrastructure (V2I) communication, which is critical for safety, is often interrupted when vehicles travel in tunnels. Leaky Feeder (LF) or radiating cable have been the primary solution to provide wireless access in tunnels and mines, but being overlooked until now. The LF is a natural multi antenna transceiver ideal for broadband short rage access. In this work, we model the LF as a linear antenna array and derive the average bit error rate (BER) in Rayleigh fading channel considering Quadrature Phase Shift Keying (QPSK) and M-Array Quadrature Amplitude (M-QAM) Modulations. We consider maximal ratio transmission (MRT) at the transmission end and coherent detection and maximal ratio combining (MRC) at the receiving end. Analytical expressions are derived for the BER. The effects of slot spacing and carrier frequency on the BER are also studied. Numerical evaluations show that the LF is a strong candidate for tunnels with much lower BER than a single antenna transmitter with the same SNR.
Hasan Farahneh; Xavier Fernando. The Leaky Feeder, a Reliable Medium for Vehicle to Infrastructure Communications. Applied System Innovation 2019, 2, 36 .
AMA StyleHasan Farahneh, Xavier Fernando. The Leaky Feeder, a Reliable Medium for Vehicle to Infrastructure Communications. Applied System Innovation. 2019; 2 (4):36.
Chicago/Turabian StyleHasan Farahneh; Xavier Fernando. 2019. "The Leaky Feeder, a Reliable Medium for Vehicle to Infrastructure Communications." Applied System Innovation 2, no. 4: 36.