This paper presents a performance analysis of a directly modulated direct-detection orthogonal frequency division multiplexing-based visible light communication system designed for high-speed and low-complexity transmission. The proposed architecture employs 16-Quadrature Amplitude Modulation (16-QAM) and achieves a data rate of 15 Gbps over a 500 m line-of-sight link while eliminating the need f…
In this paper, we investigate the adverse atmospheric effects, including wind disturbance, dry fog, wet fog, and smoke conditions, which are simulated on an atmospheric testbed specifically built for free-space optical communication (FSOC) experiments. We have also developed an FSOC system that can modulate the optical signals with the choice of the modulation, encoding scheme, and encryption. A …
