Analisis Performansi Wdm Uvlc Menggunakan Laser Dengan Modulasi Ook-rz Dan Ook-nrz
DOI:
https://doi.org/10.34818/eoe.v9i2.17581Abstrak
Kebutuhan akses informasi yang semakin cepat menjadi salah satu tantangan dalam perkembangan teknologi telekomunikasi. Radio Frequency (RF) merupakan salah satu teknologi nirkabel yang paling banyak digunakan, namun teknologi ini memiliki beberapa kekurangan yaitu semakin sedikitnya frekuensi yang tersedia, kecepatan yang terbatas dan masih dapat diretas. Teknologi VLC memiliki tingkat keamanan yang tinggi, kecepatan yang jauh lebih cepat dan lisensi spektrum yang masih bebas. Tugas Akhir ini menggunakan Wavelenght Division Multiplexing (WDM) pada rangkaian UVLC. Berfokus untuk menganalisis nilai BER dan Q-Factor menggunakan rangkaian WDM UVLC dengan penggunaan modulasi OOK-RZ dan OOK-NRZ. Pengujian dilakukan pada jarak yang bervariasi dari 250 meter, 500 meter, 750 meter hingga 1000 meter. Serta dengan yang bervariasi dari 2 Watt, 4 Watt, 6 Watt, 8 Watt dan 10 Watt. Berdasarkan hasil penelitian, dapat dibuat presentase untuk perbandingan BER dan Q-Factor pada rangkaian OOK-RZ tanpa WDM dan OOK-RZ dengan WDM. Presentasi kenaikan BER sebesar 0.025% pada LASER dengan panjang gelombang 514 nm pada rangkaian OOK-RZ dengan WDM. Rangkaian yang menggunakan WDM menghasilkan kenaikan Q-Factor sebesar 100% pada LASER dengan panjang gelombang 488 sebagai sumber pertama, serta kenaikan sebesar 57% pada sumber kedua. Pada hasil Q-Factor, penggunaan WDM dapat menghasilkan penurunan hingga sebesar 210%. Kata Kunci : UVLC, OOK-NRZ, OOK-RZ, SNR, BER, Q-Factor, Wavelengh Division Multiplexing. Abstract The need for faster access to information is one of the challenges in the development of telecommunications technology. Radio Frequency (RF) is one of the most widely used wireless technologies, but this technology has several disadvantage, the fewer available frequencies, limited speed. VLC technology utilizes light as a carrier signal to carry information so that it has a high level of security, much faster speeds and free spectrum licenses. In this final project, Wavelength Division Multiplexing (WDM) is used in the UVLC circuit. Focusing on analyzing BER and Q-Factor values using WDM UVLC circuit with OOK-RZ and OOK-NRZ modulation. Tests are carried out at various distances from 250 meters, 500 meters, 750 meters to 1000 meters. The power is also varies from 2 Watt, 4 Watt, 6 Watt, 8 Watt and 10 Watt. ISSN : 2355-9365 e-Proceeding of Engineering : Vol.9, No.2 April 2022 | Page 369 The percentage increase in BER is 0.025% on a LASER with a wavelength of 514 nm in the OOKRZ circuit with WDM. The circuit using WDM resulted in a 100% Q-Factor increase in the LASER with a wavelength of 488 as the first source, and a 57% increase in the second source. In the QFactor results, the use of WDM resulted in a decrease up to 210%. Keywords : UVLC, OOK-NRZ, OOK-RZ, SNR, BER, Q-Factor, Wavelengh Division Multiplexing.Referensi
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