1 Department of Electronics and Communication Engineering, Government Polytechnic, Kalaburagi, Karnataka, India
2 Department of Electronics and Communication Engineering, Government Polytechnic, Raichur, Karnataka, India.
Review Article
World Journal of Advanced Research and Reviews, 2022, 14(02), 716-723
Received on 02 April 2022; revised on 12 May 2022; accepted on 14 May 2022
Free-space optical (FSO) communication is rapidly gaining prominence as a fundamental technology for high-speed, high-capacity data transmission in next-generation 6G networks. Unlike conventional radio frequency (RF) communication, FSO leverages optical signals to establish wireless links, offering advantages such as high data rates, low latency, and reduced electromagnetic interference. This paper explores recent advancements in FSO communication, focusing on novel modulation schemes, adaptive beamforming techniques, and the integration of machine learning for real-time system optimization. Furthermore, key challenges such as atmospheric turbulence, misalignment due to environmental factors, and security vulnerabilities are analyzed in detail. Various mitigation strategies, including turbulence compensation methods, robust pointing and tracking mechanisms, and encryption-based security frameworks, are proposed to enhance system performance and reliability. Comparative analyses, supported by figures, tables, and bar charts, highlight improvements in data transmission efficiency, robustness, and deployment feasibility. The findings of this study underscore the potential of FSO communication in complementing existing wireless technologies and playing a crucial role in the evolution of 6G networks
Free-space optical communication (FSO); 6G networks; High-speed data transmission; Optical wireless communication; Modulation techniques; Adaptive beamforming; Machine learning optimization
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Raghunath, Mamatha Kotagi and Kavitha N Mudnal. Advancements in free-space optical communication for 6G Networks. World Journal of Advanced Research and Reviews, 2022, 14(2), 716-723. Article DOI: https://doi.org/10.30574/wjarr.2022.14.2.0407