Analisis Kinerja Komunikasi FSO Antar-UAV Pada Berbagai Kondisi Atmosfer

Razali, Jorgi Omar (2026) Analisis Kinerja Komunikasi FSO Antar-UAV Pada Berbagai Kondisi Atmosfer. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Integrasi Free Space Optics (FSO) dengan Unmanned Aerial Vehicle (UAV) merupakan solusi menjanjikan untuk tautan nirkabel berkapasitas tinggi pada jaringan generasi keenam (6G), khususnya di wilayah tanpa infrastruktur tetap. Namun, kinerja tautan FSO antar-UAV dipengaruhi oleh redaman atmosfer akibat kabut dan hujan, turbulensi optik, serta pointing error akibat ketidakstabilan platform. Tujuan penelitian ini adalah menganalisis kinerja tautan FSO antar-UAV, membandingkan efektivitas modulasi On-Off Keying (OOK) dan 4-Pulse Position Modulation (4-PPM), serta menentukan jangkauan operasional tautan pada berbagai kondisi atmosfer. Model kanal menggabungkan redaman Beer-Lambert, turbulensi Gamma-Gamma, dan pointing error berdistribusi Rayleigh, kemudian dievaluasi menggunakan MATLAB melalui perhitungan analitik yang divalidasi dengan simulasi Monte Carlo. Hasil penelitian menunjukkan bahwa redaman atmosfer merupakan faktor pembatas dominan, sementara turbulensi kuat semakin menurunkan kinerja. Skema 4-PPM secara konsisten lebih unggul dibanding OOK karena mencapai BER yang sama dengan daya lebih hemat sekitar 1-2 dB. Jangkauan operasional tautan menurun tajam dari lebih dari 5 km pada kondisi cerah menjadi sekitar 1,3 km pada hujan sangat lebat, disertai penurunan kapasitas ergodik yang signifikan. Kontribusi utama penelitian ini adalah kerangka evaluasi terpadu yang menggabungkan pengaruh redaman, turbulensi, dan pointing error, serta pedoman kuantitatif jangkauan operasional FSO antar-UAV sesuai kondisi atmosfer sebagai acuan perancangan tautan pada jaringan 6G non-terestrial.
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The integration of Free Space Optics (FSO) with Unmanned Aerial Vehicles (UAV) is a promising solution for high-capacity wireless links in sixth-generation (6G) networks, particularly in areas without fixed infrastructure. However, the performance of inter-UAV FSO links is affected by atmospheric attenuation due to fog and rain, optical turbulence, and pointing error caused by platform instability. This research aims to analyze the performance of inter-UAV FSO links, compare the effectiveness of On-Off Keying (OOK) and 4-Pulse Position Modulation (4-PPM), and determine the operational range of the link under various atmospheric conditions. The channel model combines Beer-Lambert attenuation, Gamma-Gamma turbulence, and Rayleigh-distributed pointing error, which is then evaluated in MATLAB through analytical calculations validated by Monte Carlo simulation. The results show that atmospheric attenuation is the dominant limiting factor, while strong turbulence further degrades performance. The 4-PPM scheme is consistently superior to OOK, achieving the same BER with approximately 1-2 dB lower power. The operational range decreases sharply from more than 5 km under clear conditions to about 1.3 km under very heavy rain, accompanied by a significant reduction in ergodic capacity. The main contribution of this research is an integrated evaluation framework combining the effects of attenuation, turbulence, and pointing error, as well as a quantitative operational-range guideline for inter-UAV FSO links according to atmospheric conditions, serving as a reference for link design in non-terrestrial 6G networks.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	FSO antar-UAV, OOK, 4-PPM, turbulensi Gamma-Gamma, pointing error, inter-UAV FSO, OOK, 4-PPM, Gamma-Gamma turbulence, pointing error
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions:	Faculty of Intelligent Electrical and Informatics Technology (ELECTICS) > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User:	Jorgi Omar Razali
Date Deposited:	24 Jul 2026 03:38
Last Modified:	24 Jul 2026 03:38
URI:	http://repository.its.ac.id/id/eprint/137028

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