Evaluasi Performansi Model Propagasi LOS dan Non-LOS Pada Sistem Light Fidelity Indoor

Prabawa, Deshan Dinyanovan (2025) Evaluasi Performansi Model Propagasi LOS dan Non-LOS Pada Sistem Light Fidelity Indoor. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Perkembangan teknologi yang pesat, khususnya di bidang telekomunikasi dan transmisi data, menyebabkan kapasitas spektrum radio semakin terbatas akibat meningkatnya jumlah perangkat nirkabel. Light Fidelity (LiFi) hadir sebagai solusi alternatif yang memanfaatkan cahaya tampak untuk mentransmisikan data melalui udara, sehingga sangat sesuai untuk komunikasi di dalam ruangan. Penelitian ini mengevaluasi performansi model propagasi Line-of-Sight (LOS) dan Non-Line-of-Sight (Non-LOS) pada sistem LiFi indoor. Simulasi dilakukan menggunakan MATLAB untuk menganalisis parameter gain dan daya terima pada berbagai jarak, sedangkan pengukuran riil menggunakan sumber cahaya LED dan lampu fluoresen dalam kondisi dengan noise dan tanpa noise. Hasil penelitian menunjukkan bahwa daya terima dan gain menurun seiring bertambahnya jarak, dengan nilai pada model LOS secara signifikan lebih tinggi dibandingkan Non-LOS. Sumber cahaya LED menunjukkan tren performansi yang lebih linear dengan rata-rata penurunan gain sebesar 0.465 dB pada kondisi tanpa noise dan 0.466 dB pada kondisi dengan noise. Koefisien korelasi yang diperoleh berkisar antara -0.95 hingga -1.00, menunjukkan hubungan negatif yang kuat antara jarak dan gain. Temuan ini memberikan pemahaman mendalam mengenai karakteristik propagasi LiFi serta mendukung pengembangan desain sistem yang lebih optimal di lingkungan indoor.
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The rapid development of technology, particularly in telecommunications and data transmission, has led to the limited capacity of the radio spectrum due to the increasing number of wireless devices. Light Fidelity (LiFi) emerges as an alternative solution that utilizes visible light to transmit data through the air, making it highly suitable for indoor communication. This study evaluates the performance of Line-of-Sight (LOS) and Non-Line-of-Sight (Non-LOS) propagation models in indoor LiFi systems. Simulations were conducted using MATLAB to analyze gain and received power parameters at various distances, while real-world measurements employed LED and fluorescent light sources under both noise and no-noise conditions. The results show that received power and gain decrease as distance increases, with LOS models providing significantly higher values than Non-LOS. The LED light source demonstrated a more linear performance trend, with an average gain reduction of 0.465 dB under no-noise conditions and 0.466 dB under noise conditions. The correlation coefficients obtained range from -0.95 to -1.00, indicating a strong negative relationship between distance and gain. This study provides a comprehensive understanding of LiFi propagation characteristics and supports the development of more optimized system designs for indoor environments.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Light Fidelity, Model Propagasi, VLC, Wireless Optic
Subjects:	Q Science > Q Science (General) > Q180.55.M38 Mathematical models T Technology > T Technology (General) > T57.62 Simulation T Technology > TA Engineering (General). Civil engineering (General) > TA1573 Detectors. Sensors T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5103.2 Wireless communication systems. Two way wireless communication 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:	Deshan Dinyanovan Prabawa
Date Deposited:	25 Jul 2025 03:47
Last Modified:	25 Jul 2025 03:47
URI:	http://repository.its.ac.id/id/eprint/121300

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