Analisis Parameter Signal to Noise Ratio dan Bit Error Rate dalam Backbone Komunikasi Fiber Optik Segmen Lamongan-Kebalen

Adiati, Rima Fitria (2017) Analisis Parameter Signal to Noise Ratio dan Bit Error Rate dalam Backbone Komunikasi Fiber Optik Segmen Lamongan-Kebalen. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Fiber optik telah menjadi solusi atas meningkatnya kebutuhan transfer data dengan kapasitas dan kecepatan tinggi. Dengan 4.3 juta pelanggan dan proyeksi pertumbuhan sebesar 18.3% pertahun, sektor fixed broadband PT Telkom Indonesia bergantung pada kualitas infrastruktur backbone fiber optik, yang dapat direpresentasikan melalui parameter Signal to Noise Ratio (SNR) dan Bit Error Rate (BER). Oleh karena itu, perlu dilakukan analisis terhadap parameter SNR dan BER pada segmen backbone fiber optik antara STO Lamongan 1 dan STO Kebalen, Surabaya. SNR merupakan perbandingan logaritmik antara daya sinyal dan noise yang diterima receiver, sedangkan BER adalah ukuran intensitas terjadinya error pembacaan bit data. Pengukuran di receiver STO Kebalen dilakukan dengan menyambungkan BER Tester ke salah satu port channel DWDM dalam Optical Transport Network (OTN) platform selama 24 jam dan menghasilkan BER 10^(-23). Pengukuran receiver sensitivity dilakukan dengan menambahkan optical attenuator sehingga diketahui pengaruh atenuasi daya terhadap BER. Untuk menganalisa parameter SNR dan BER secara keseluruhan, perlu dilakukan simulasi dengan software Optisystem. Backbone 100 Gbps sepanjang 84 km dengan sistem DWDM 10 channel ini disimulasikan pada frekuensi 193.1 - 194 THz dengan spacing 100 GHz antar channel. Parameter simulasi dipilih berdasarkan karakteristik backbone dan datasheet komponen, sedangkan WDM analyzer dan BER analyzer digunakan sebagai alat ukur. Hasil simulasi menunjukkan nilai SNR dan BER memenuhi standar dan dipengaruhi frekuensi atau panjang gelombang di setiap channel. SNR maksimum adalah 72.37 pada 193.6 THz dan nilai BER minimum yaitu 2.05×10^(-30) pada 193.5 THz.. Untuk mendapatkan nilai BER optimum yaitu 10^(-12), dilakukan pemasangan dispersion compensating fiber serta penambahan daya transmitter pada channel berfrekuensi 193.1, 193.2, 193.9, dan 194 THz. ================================================================= Optical fiber has been used to fulfil the increasing need of high speed and high capacity data transfer. With 4.3 million users and 18.3% growth projection per year, fixed broadband sector of PT Telkom Indonesia relies on the quality of fiber optic backbone infrastructure, which represented by the Signal to Noise Ratio (SNR) and Bit Error Rate (BER). So, it is necessary to analyze SNR and BER parameters of fiber optic backbone in the segment between STO Lamongan 1 and STO Kebalen, Surabaya. SNR is logarithmic ratio of received signal and noise power, while BER is the measure of incorrect bit identification probability. The measurement process taken in STO Kebalen`s receiver by connecting BER Tester into one of the DWDM ports in Optical Transport Network (OTN) platform for 24 hours. It showed the result of BER 10^(-23). The measurement of receiver sensitivity is done by adding variable optical attenuator so the effect of power attenuation to BER is obtained. To better analyze SNR and BER parameters completely, it needs a simulation brought by Optisystem software. The 100 Gbps, 84 km, 10 channels DWDM backbone is simulated in 193.1-194 THz with 100 GHz of frequency spacing. Parameters of the simulation are following the characteristic of the backbone itself and components datasheets. WDM analyzer and BER analyzer are used as measurement instrument. The simulation shows that SNR and BER of the system is acceptable based on standards and different at each frequency or wavelength channel. Maximum SNR is 72.37 at 193.6 THz, while minimum BER reaches 2.05×10^(-30) at 193.5 THz. To obtain the optimum BER of 10^(-12), two kinds of treatment, dispersion compensating fiber installation and transmitter power addition on 193.1, 193.2, 193.9, and 194 THz are simulated.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: SNR, BER, DWDM, Optisystem
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5105 Data Transmission Systems
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication
Divisions: Faculty of Industrial Technology > Physics Engineering > (S1) Undergraduate Theses
Depositing User: RIMA FITRIA ADIATI
Date Deposited: 07 Dec 2017 07:41
Last Modified: 07 Dec 2017 08:07
URI: http://repository.its.ac.id/id/eprint/47045

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