Image of Analisis Perbandingan Kinerja Modulasi Optik Langsung Dan Modulasi Optik Eksternal Pada Sistem Radio Over Fiber Dengan Input Sinyal Radio Frekuensi Termodulasi Quadrature Amplitude Modulation
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Analisis Perbandingan Kinerja Modulasi Optik Langsung Dan Modulasi Optik Eksternal Pada Sistem Radio Over Fiber Dengan Input Sinyal Radio Frekuensi Termodulasi Quadrature Amplitude Modulation

Radio Over Fiber technology is a technology that combines fiber access networks with wireless systems where ROF uses fiber optic cables as intermediary media to obtain greater transmission speeds compared to direct transmission. The system of transmitting radio signals through fiber optic channels is carried out by modulating the optical signal using the radio signal to be transmitted.
Optical signal modulation can be performed using direct optical modulation and external optical modulation. This ROF communication system is designed with Quadrature Amplitude Modulation (QAM) modulated RF signals as input. The analysis was carried out by measuring the power, RF signal received, BER and Q-factor by simulation using OptiSystem 7.0 Software. Simulations were carried out for ROF channels with a frequency of 60 GHz with a fiber length of 0 km to 5 km. The simulation results show that there is a very large power decrease in the RF signal that is received repeatedly on fiber lengths at a distance of 1.1 km and 3 km in direct modulation with a Q-factor value of 2.5257 and 2.7926 for a BER value of 0.0056 and 0.0026 while in external modulation at a distance of 1 km and 3.1 km directly with Q-factor values of 1.777 and and 1.68826 for BER values of 0.0332 and 0.0043. Power fluctuations and system performance occur due to chromatic dispersion.
Keywords: Radio Over Fiber (ROF), Quadratur Amplitude Modulation, Intensity Modulatio, Dispersion

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Perpustakaan Universitas Riau 1807124859
1807124859
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No. Panggil
1807124859
Penerbit
Pekanbaru : Universitas Riau – Fakultas Teknik – Teknik Elektro.,
Deskripsi Fisik
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Bahasa
Indonesia
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1807124859
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Tipe Media
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Tipe Pembawa
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TEKNIK ELEKTRO
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