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All Journal Jurnal Ilmu Komputer dan Informasi Ilmu dan Budaya Bulletin of Electrical Engineering and Informatics CommIT (Communication & Information Technology) Jurnal technoscientia Jurnal Ilmiah Giga Sinkron : Jurnal dan Penelitian Teknik Informatika Jurnal Informatika Journal of Information Technology and Computer Science (JOINTECS) JURNAL MEDIA INFORMATIKA BUDIDARMA JOURNAL OF APPLIED INFORMATICS AND COMPUTING Share : Journal of Service Learning KOMIK (Konferensi Nasional Teknologi Informasi dan Komputer) JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Jurnal Mantik Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Journal of Artificial Intelligence and Innovative Applications (JOAIIA) Scientific Journal of Informatics Indonesian Journal of Electrical Engineering and Computer Science Jurnal Teknik Informatika C.I.T. Medicom JURNAL TEKNOLOGI TECHNOSCIENTIA Jurasik (Jurnal Riset Sistem Informasi dan Teknik Informatika) JUSTIN (Jurnal Sistem dan Teknologi Informasi) International Journal Software Engineering and Computer Science (IJSECS) International Journal of Science and Society (IJSOC) Makara Journal of Technology J-Icon : Jurnal Komputer dan Informatika Jurnal Informatika
Ucuk Darusalam
Universitas Nasional
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences

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Journal : Makara Journal of Technology

 1 
Performances of Free-Space Optical Communication System Over Strong Turbulence Darusalam, Ucuk; Priambodo, Purnomo Sidi; Sudibyo, Harry; Rahardjo, Eko Tjipto
Makara Journal of Technology Vol. 18, No. 1
Publisher : UI Scholars Hub

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Abstract

We report an experimental of free-space optical communication (FSOC) system that use tube propagation simulator (TPS) as the turbulence medium. The FSOC system use wavelength of 1550 nm at the rate transmission of 1000 Mbps and amplified with EDFA at the output of +23 dBm. Index structure of 10-15–10-13 as the representation of atmosphere index turbulences are used for simulation of intensity distribution model or scintillation. The simulation use gammagamma and K model as well. The beam wave propagation models used in simulation are plane wave, spherical wave and Gaussian wave. Spherical wave achieves highest performance via gamma-gamma in strong turbulence. While Gaussian wave achieves highest performance also via K model. We also found, characteristical FSOC system performance is calculated more accurately with gamma-gamma method for strong turbulence than K model. The performances from gamma-gamma for strong turbulence are at 22.55 dB, at 5.33´10-4, and at 9.41 ´10-6.
Wavelet Transform on Digital Rainbow Hologram based on Spectral Compression for Quality Enhancement in 3D Display Media Darusalam, Ucuk; Pamungkasari, Panca Dewi
Makara Journal of Technology Vol. 23, No. 1
Publisher : UI Scholars Hub

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A digital rainbow hologram (DRH) is a potential next-generation three-dimensional display media for the development of modern and smart electronics devices. It is one of the methods that can support the characteristic whereby a realistic display media occupies the space that the real object would have occupied. Since a rainbow hologram records a large amount of spatial or temporal frequency component from the object that represents the rainbow spectrum, a large amount of information needs to be decoded digitally. In this paper, to reconstruct a DRH, we propose a novel method based on the modulation of red, green, and blue spectral components of light by wavelet transform (WT) in the recording and reconstruction processes, which we digitally simulated in a computer using an algorithm. In the simulations, continuous WT (CWT) was based on Haar, Daubechies, Meyer, and Coiflet wavelets with a level set to be two. Based on the results of simulations using CWT, the optimum distance between object and hologram was 30 cm, and the maximum compression was 88.55%, which was achieved with Meyer wavelet. Moreover, optimal de-noising and optimal localization of spatial frequency component based on red, green, and blue spectral components were also achieved using the proposed method.
Performance of Free-space Optical Communication Systems using Optical Amplifiers under Amplify-forward and Amplify-received Configurations Darusalam, Ucuk; Raj, Arockia Bazil; Zulkifli, Fitri Yuli; Priambodo, Purnomo Sidi; Rahardjo, Eko Tjipto
Makara Journal of Technology Vol. 24, No. 3
Publisher : UI Scholars Hub

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Abstract

With the growth of digital technology in the stage of industrial revolution 4.0, the demand for broadcasting large amounts of information to last mile users has increased. Free-space optical (FSO) communication is one of the telecommunication platforms that has shown immense potential in meeting the demand for information broadcasting. In this work, the performance of FSO communication based on wavelength division multiplexing with a data rate of 80 Gbps is investigated through simulations. The configuration of optical amplifiers in the FSO system is set up on the basis of the amplify-forward and amplify-received configurations to expand the network. The investigation is aimed at identifying the best optical signal amplification between an erbium-doped fiber amplifier (EDFA) and a semiconductor optical amplifier (SOA) under an atmospheric channel. Simulation results show that the EDFA performs better than the SOA in terms of the optical signal amplification for eight channels of the C band. The maximum optical propagation path length under the atmospheric channel for the amplify-forward and -received schemes using the EDFA is 1.7 km, with the bit error rate achieved at 10−6.
The Relaying Network in Free-Space Optical Communications using Optical Amplifiers in Cascaded Configuration Darusalam, Ucuk; Raj, Arockia Bazil; Zulkifli, Fitri Yuli; Priambodo, Purnomo Sidi; Rahardjo, Eko Tjipto
Makara Journal of Technology Vol. 27, No. 2
Publisher : UI Scholars Hub

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Abstract

Optical relaying is the best technique to implement free-space optical (FSO) communications as a terrestrial platform. However, atmospheric turbulence (AT) limits the optical-propagation path length. In this study, the implementation of some optical amplifiers (OAs) in cascaded configuration, namely, erbium-doped fiber amplifiers, semiconductor OAs, and Raman amplifiers (RAs), are investigated through simulation. This study aims to search for the maximum link distance of an optical propagation and enhance the FSO performance caused by each configuration of OAs. The optical relaying network consists of three nodes, with each node designed with a space of several kilometers under the influence of AT. At the end of the destination, before the receiver, an optical band-pass filter is applied to perform noise filtering. Among the OAs in the cascaded configuration, the RA can expand the link distance of the optical-propagation path length to a range of 14.7–15.9 Km under the influence of a strong AT. The signal-to-noise ratio and bit error rate of the system are in the ranges of 24.1– 19.08 dB and 7.9 × 10−15–7.4 × 10−6, respectively.
Co-Authors Abdu Rahman Abdul Refli Gunawan Adi Wiyono Agus Diriyana Agus Iskandar Agus Iskandar Ahmad Rivaldi Ajat Sudrajat Aji, Rahmat Widodo Albaar Rubhasy Albaar Rubhasy Andi Hidayat Andri Aningsih Andri Aningsih Andrianingsih Ardi Hidayat Aris Gunaryati Ariyanto, Puji Ary Dwi Pantoro Ben Rahman Benrahman Benrahman Benrahman Catur Nugroho Deny Hidayatullah Dimas Fathulyaqin Dimas Jayadi Eko Tjipto Rahardjo Fachruddin M. Mangunjaya Fauziah Fauziah Fayiz, Muhammad Fikri Syah Putra Muchtar Fitri Rahmah Fitri Rahmah Fitri Yuli Zulkifli Fitria Hidayanti Fitria Hidayanti Freddy Artadima Silaban Gifari, Aqil Naufal Haidar Ali Hakiki, M Irsyad Haq, Fesa Asy Syifa Nurul Harry Sudibyo Hidayanti, Fitria Hilman Hadi Hilmy, Naufal Ilham Indra Saputra Imam Abdurrahman Ina Agustina Ira Diana Sholihati Irawan, Dika Irfan Hadi Putra Irmawati Irmawati Iskandar Fitri Jayawarsa, A.A. Ketut Kiki Rezki Lestari Kukuh Prasetiyo Aji Linda Apriliana Luh Putu Ratna Sundari Lukman Medriavin Silalahi Maraghi Agil Prabowo Mirza Fuadi Mizan Syah Putra Mochamad Akbar Fajar Hidayat Putra Muhammad Fayiz Muhammad Fikri Haikal Husein Muhammad Zarlis Muhammad Zarlis, Muhammad Muliati, Vika Febri Nadhira Trisa Pradipta Naufal Hilmy Nicko Pratama Novi Dian Natasha Novi Dian Natasha Novi Dian Nathasia Novi Dian Nathasia Novi Dian Nathasia Novi Dian Nathasia Nugraha, Yoga Septian Nurhayati Siregar Nurhayati Siregar, Nurhayati Oktianti Dwi Pratiwi Pamungkasari, Panca Dewi Pandu Maulana Prasetyo, Muhamad Yulianto Priambudi, Abiyoga Puji Ariyanto Purnomo Sidi Priambodo Putra, Irfan Hadi Radytia, Sandy RAHAYU, FAJAR Rahman, Abdu Raj, Arockia Bazil Ratih Titi Komalasari Renita Oktaviani Irawan Resiana, Cindy Dinda Rian Harianto Royani Royani Sahrul Rasyid Salomo Hasiolan Sidauruk Sandy Kurniawan Ruhiat Saputra, Rizki Adhi Sari Ningsi Sari Ningsih Selamet Kurniawan Septi Andryana Setiyo Budiyanto Sudetlin Sudetlin Tambunan, William Jeans Vika Febri Muliati Whardana, Adithya Kusuma Wijaya, Yunan Fauzi Wiyono, Adi Yoga Septian Nugraha Yoshua Constantin