scholarly journals EVALUASI KINERJA OPERASIONAL JARINGAN KOMUNIKASI SERAT OPTIK LAMPUNG-DUMAI SUMATERA INLAND BACKBONE LINK

Author(s):  
Syamsul El Yumin ◽  
R Hartono

Lampung-Dumai backbone link consisted of 11 sublinks is the optical fiber communication networks(OFCN) system using the technology of Synchronous Digital Hierarchy (SDH) multiplexing with the transmissionspeed of 2,5 Gbps or STM-16 with the bit-error-rate of 10 -11 . Since 2007 the performance network, such as theoperasional bit-error-rate, transmission data capacity, the availability and reliability, has not yet been evaluated.This paper reports the results of the network performance evaluated by recalculating and remeasuring the powerlink budget to know the total losses of system affecting the operational bit-error-rate, and the rise-time budget toknow the transmission data capacity. And also, the the availability and reliability of system was investigated. Theevaluation result shows that there are 4 of 11 sublinks where its measured attenuation values are bigger than thedesigned value, hence increasing the operasional bit-error-rate in those links. However overall, the availabilityand the reliability can still be achieved 99, 5% and 99,99%, respectively, as the ITU-T standards and G.652recommendation.

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Tri Nopiani Damayanti ◽  
Hasanah Putri

Penelitian ini dilakukan untuk menganalisa perbandingan unjuk kerja transmisi teknologi GEPON dan GPON pada jaringan Fiber to the Building (FTTB). Pembahasan perbandingan menggunakan kedua teknologi PON tersebut untuk melihat performansi yang terbaik untuk di aplikasikan pada gedung bertingkat X menggunakan passive splitter dua tingkat dengan rasio perbandingan passive splitter maksimum 1:16. Unjuk kerja transmisi disimulasikan berdasarkan parameter link power budget, rise time budget serta nilai Bit Error Rate (BER) untuk kelayakan sistem jaringan. Perhitungan Unjuk jaringan dibagi menjadi bagian yaitu arah downstream dan arah upstream. Hasil perhitungan didapatkan pada arah downstream jarak terjauh, link GEPON menghasilkan nilai redaman sebesar 22.81 dB, BER sebesar 7x 10-29 dan nilai rise time sebesar 0,2506 ns. Pada link GPON memiliki redaman sebesar 25.94 dB, BER sebesar 3.62955 x 10-12 dan nilai rise time sebesar 0.25 ns. Pada arah upstream jarak terjauh, link GEPON menghasilkan nilai redaman sebesar 4.65 dB, dengan nilai BER ≈ 0 ,dan nilai rise time sebesar,2061 ns. Pada GPON memiliki redaman sebesar 4.65 dB, BER ≈ 0 dan nilai rise time sebesar 0,260 ns. Berdasarkan hasil unjuk kinerja kedua teknologi tersebut dapat disimpulkan bahwa unjuk kinerja teknologi GPON lebih baik dibandingkan teknologi GEPON untuk aplikasikan di jaringan optik gedung bertingkat.


2015 ◽  
Vol 25 (2) ◽  
pp. 147
Author(s):  
Bui Trung Ninh ◽  
Nguyen Quoc Tuan ◽  
Ta Viet Hung ◽  
Nguyen The Anh ◽  
Pham Van Hoi

We present the results of investigation  for  influence of amplified spontaneous emission (ASE) noise, noise figure (NF) and  chromatic dispersion on the performance of middle-distance Dense-wavelength-division-multiplexing (DWDM) networks using low-power pumped distributed Raman amplifiers (DRAs) in two different pump configurations, i.e., forward and backward pumping. We found that the pumping configurations, ASE noise, and dispersion play an important role for improving network performance by decrease of noise figure and bit error rate (BER) of the system. Simulation results show that the lowest bit error rate and low noise figure were obtained, when using forward pumping configuration. Moreover, we have also compared ASE noise powers of the simulation with these of the experiment. These results conclude that DRA with low pump power  ($<1$~W) is the promising key technology for short-- and/or middle-distance DWDM transmission networks.


2018 ◽  
Vol 0 (0) ◽  
Author(s):  
Farman Ali ◽  
Yousaf Khan ◽  
Amjad Ali ◽  
Gulzar Ahmad

AbstractHigh-capacity and long-haul transmission gained great significance in modern communication networks. Optical fiber communication system is good enough to face the high demand of current telecom terrific. This paper will propound the theoretical model showing nonlinear factors which degrade the transmission performances of high-capacity long-haul network. The postulatory model will be validated using simulation of key nonlinear factors such as effective area, launch power, refractive index and fiber length. The transmission performance of the high-capacity long-haul optical network would be analyzed on the basis of some key parameters such as bit error rate and signal-to-noise ratio. Mitigation of nonlinear impairments shows significant impact on transmission performances of high-capacity long-haul optical networks.


2018 ◽  
Vol 5 (2) ◽  
pp. 43
Author(s):  
I Putu Yuda Pramana Putra ◽  
Pande Ketut Sudiarta ◽  
Gede Sukadarmika

The purpose of this study is to compare the existing optical network conditions that use point to point technology with GPON network designed for Udayana University campuses area in Bukit Jimbaran Bali. The Existing optical network is currently able to serve only 14 buildings from 77 existing productive buildings due to the limited number of available optical cores.. It means in order to connect each building at the campuses area, it is required much more optical fiber. Alternatively is using Gigabit Passive Optical Network (GPON) technology. This research was conducted by analyzing the condition of the existing optical network and designing the GPON network. Here are compared some network feasibility parameters ie Link Power Budget, Rise Time Budget and Bit Error Rate. Then compare the use of cores, the number of subscribers as well as device estimation and transmission costs. The study found that to connect all of the buildings are GPON configuration required only 22 optical cores, compared to 154 cores for eksisting network designs. However, the GPON design has lower network quality but is simpler and much more economical if it is implemented for a wide network.


2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Suresh Kumar ◽  
Shiwani Rathee ◽  
Payal Arora ◽  
Deepak Sharma

AbstractThe optical fiber communication offers a huge bandwidth for data transmission at higher data rates but to increase the throughput for long-haul networks, metro data links, and data centers, additional fiber is required which is not economical. For effective reception of signals at the receiver, the photo detector in optical communication requires higher efficiency, lower noise, ultrafast response and optimum received signal strength. The inherent dispersion and nonlinear impairments in optical fiber communication system can be overcome by using the Fiber Bragg Grating (FBG) which is a Dispersion Compensating Module. FBG helps to improve the long-haul transmission by providing an efficient system performance. This paper presents a detailed review of FBG and photo detectors and their use in an Optical communication system. This paper will help the researchers to find useful material at a single platform.


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