An integrated design for improving spectral efficiency of FSO communication system in 6G applications |
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Authors: | Kuppani Sathish Hemalatha Mahalingam Kadiri Padmaja Ramesh Makala N. Rama Krishnaiah |
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Affiliation: | 1. Department of Computer Science and Engineering, Tirumala Engineering College, Narasaraopet, Andhra Pradesh, India;2. Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia;3. Department of Artificial Intelligence and Machine Learning, School of Computing, Mohan Babu University, Tirupati, Andhra Pradesh, India;4. Department of Computer Science and Engineering, Hindu College of Engineering, Guntur, Andhra Pradesh, India;5. Department of Computer Science and Engineering, University College of Engineering (A), JNT University Kakinada, Kakinada, Andhra Pradesh, India |
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Abstract: | In the case of future access networks, such as 6G-based applications, the free-space optical communication (FSO) technology is an efficient solution. FSO in 6G is extremely popular because of its unique properties, which include ease of installation, high bandwidth, high security, license-free long range, and interference resistance. However, environmental disturbances have a negative impact on the FSO system's functioning. Because of these atmospheric turbulences, the optical information gets restricted, which in turn reduces the link reliability, power density, and distance. This paper proposes a hybrid FSO strategy for improving system efficiency to address these problems. Signal creation is fundamental to every successful communication system. The FSO system consists of three components: the transmitter, the channel medium, and the receiver. The transmitter section includes a continuous wave laser, a Mach–Zehnder modulator, a nonreturn to zero transpose Walsh code generator, and a nonreturn to zero pulse generator. Wavelength division multiplexing-optical code division multiple access-spectrum slicing (WDM-OCDMA-SS) is used to facilitate efficient data transfer after signals have been generated by alternate mark inversion (AMI). In order to boost a weak signal, fused Raman erbium amplifiers (Fuse-RE) are used. Q factor and log bit error rate (BER) are used to assess the performance of the suggested approach. The proposed model has obtained a log BER of −15.3291 for clear air and a Q factor of 8.2922, whereas the performances are implemented using Python. The proposed approach achieves better performance when compared to the existing methodologies. |
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Keywords: | atmospheric attenuations continuous wave laser integrated AMI-encoded Mach–Zehnder modulator nonreturn to zero pulse generator Raman erbium amplifiers |
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