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All Journal POSITRON TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Pekommas ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Elektronika dan Telekomunikasi TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika JMECS (Journal of Measurements, Electronics, Communications, and Systems) Indonesian Journal of Electrical Engineering and Computer Science Prosiding Konferensi Nasional PKM-CSR eProceedings of Engineering Jurnal INFOTEL Buletin Pos dan Telekomunikasi
Nachwan Mufti Adriansyah
Universitas Telkom
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Nursing Physics Public Health Social Sciences

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Performance of Static Power Allocation in Indoor Room on VLC-NOMA System Using Modulation PPM Syifa Hana Afifah; Nachwan Mufti Adriansyah; Brian Pamukti
JMECS (Journal of Measurements, Electronics, Communications, and Systems) Vol 10 No 1 (2023): JMECS
Publisher : Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jmecs.v10i1.5835

Abstract

Visible light communication (VLC) is an emerging and promising technology that exploits the visible light spectrum for data transmission. However, one of the major challenges in VLC is how to efficiently allocate the scarce modulation bandwidth to multiple users while avoiding interference and maintaining signal quality. To tackle this challenge, we propose a novel scheme that combines non-orthogonal multiple access (NOMA) with static power allocation (SPA) and pulse position modulation (PPM) in VLC. We conduct simulations in a realistic indoor scenario with a 9x9x3 m room and a single 12-watt LED at the center, using a line of sight (LOS) channel with a field of view (FOV) of 70o. The results show that our scheme achieves superior performance, with user 1 and user 2 obtaining signal-to-interference noise ratio (SINR) values of 20 dB and 74 dB, respectively. Our scheme can effectively overcome the limitations of VLC, such as low data rate, limited coverage area, and high sensitivity to ambient light noise, and pave the way for future VLC applications.
Performance Analysis of Multiple Input Multiple Output (MIMO) Multi-Carrier Code-Division Multiple Access (MC-CDMA) Combined with Quasi-Orthogonal Space Time Block Coding (QO-STBC) in Rayleigh Fading Channel Kusumawardhani, Eka; Astuti, Rina Pudji; Adriansyah, Nachwan Mufti; Imansyah, Fitri; Putra, Leonardus Sandy Ade
POSITRON Vol 12, No 2 (2022): Vol. 12 No. 2 Edition
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Univetsitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.996 KB) | DOI: 10.26418/positron.v12i2.46613

Abstract

The need for a communication system with a higher data rate and mobility grows along with information and communication technology development. Combining MC-CDMA with the MIMO system and supporting the system with a good transmit diversity technique is a promising idea to provide the needed communication system, especially in high mobility conditions. MC-CDMA can support ubiquitous communications without affecting the achievable BER and is more capable of high-speed mobility. It integrates the benefit of both OFDM and CDMA. On the other hand, QO-STBC increases the bit rate without using additional bandwidth to transmit diversity in the MIMO system. So, this study proposed a system combining the MIMO MC-CDMA system with QO-STBC. The proposed system is investigated under high mobility conditions to see the system's performance. The simulation results show that our system performs better than the MC-CDMA STBC system and the QOSTBC system but not better than the MC-CDMA multilevel coding scheme. To reach the value of BER 10−3, MC-CDMA multilevel Coding requires less power, around 5 dB, than the proposed system.
Perhitungan Jarak Paparan Radiasi Base Transceiver Station pada Frekuensi 900 MHz, 1800 MHz, dan 2100 MHz Berdasarkan Standar World Health Organization Desi Nurqamarina Ramadhani; Ahmad Tri Hanuranto; Agus Dwi Prasetyo; Nachwan Mufti Adriansyah
Buletin Pos dan Telekomunikasi Vol. 17 No. 2 (2019): Desember 2019
Publisher : Centre for Research and Development on Resources, Equipment, and Operations of Posts and I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17933/bpostel.2019.170203

Abstract

Abstrak Teknologi telekomunikasi yang banyak dimanfaatkan untuk berkomunikasi di era internet saat ini adalah teknologi Long Term Evolution (LTE). Dalam menyelenggarakan layanan LTE, diperlukan suatu penghubung antara jaringan akses dengan core yang biasa dikenal dengan istilah backhaul. Salah satu backhaul yang biasa digunakan untuk menyambungkan suatu link komunikasi ini adalah backhaul microwave. Penerapan dari link microwave ini biasa digunakan untuk komunikasi line of sight (LOS). Oleh karena itu, perencanaan link microwave ini tidak mudah karena akan ada banyak faktor yang mempengaruhi link komunikasi ini, diantaranya: penghalang, fading, atenuasi, noise maupun jarak. Pada penelitian ini akan dilakukan perencanaan link microwave antara Kota Semarang dengan Kota Magelang dengan 3 skenario. Skenario pertama dilakukan dengan komunikasi langsung singlehop, skenario kedua dengan memanfaatkan repeater aktif, dan skenario ketiga dilakukan dengan repeater pasif. Hasil akhir menunjukan bahwa skenario yang paling sesuai untuk diimplementasi pada link microwave Semarang-Magelang ini adalah skenario kedua. Penggunaan repeater aktif yang memantulkan dan menguatkan sinyal site Tx menuju site Rx ini mampu menjadi solusi untuk lintasan link yang terdapat obstacle dan berjarak sangat jauh. Penggunaan skenario 2 dalam penelitian ini menunjukan kekuatan signal di site Semarang dan Magelang adalah masing-masing -54,67 dBm dan -48,66 dBm. Kekuatan sinyal ini berada di atas Rx threshold pada kedua site, yaitu -67,50 dBm.  Abstract Exposure to electromagnetic wave radiation from Base Transceiver Station can cause a negative impact on human health, can cause headache, brain tumors, cancer, and fetal disorders in pregnant women. In addition, to minimize the adverse effects of electromagnetic radiation exposure on the human body, the construction of Base Transceiver Station must comply with regulations regarding the safe distance of Base Transceiver Station from residential areas, such as electromagnetic field regulations that have been implemented in South Korea. From the results of mathematical calculations in accordance with World Heatlh Organization standards and electromagnetic field regulations in South Korea, it can be seen that the minimum safe distance of Base Transceiver Station to residential areas is influenced by the frequency, gain, and power of the Base Transceiver Station. This can be seen in the results od the classification of the radiation zone base on electric fields, with the use of 30 dBm power and 20 dBi gain with a frequency of 900 MHz for the Class 2 zone distance, which is 14.317 m from BTS, for 1800 MHz frequency is 7.668 m from BTS, and for 2100 MHz frequency is 2.702 m from BTS. As for the use of 43 dBm power and 20 dBi gain with a frequency of 900 MHz for the Class 2 zone distance, which is 39.86 m from BTS, for the 1800 MHz frequency is 19.939 m from BTS, and for 2100 MHz frequency is 13.638 m from the BTS.
PENGARUH PERBAIKAN FASILITAS SARANA BELAJAR PADA SUASANA BELAJAR DAN PRESTASI MADRASAH DARUL MUTTAQIN AL-INSANI BOJONGSARI BANDUNG Sugesti, Erna Sri; Astuti, Rina Pudji; Pamukti, Brian; Sutari, Wiyono; Herlina, Lisye; Adriansyah, Nachwan Mufti
Prosiding Konferensi Nasional Pengabdian Kepada Masyarakat dan Corporate Social Responsibility (PKM-CSR) Vol 6 (2023): INOVASI PERGURUAN TINGGI & PERAN DUNIA INDUSTRI DALAM PENGUATAN EKOSISTEM DIGITAL & EK
Publisher : Asosiasi Sinergi Pengabdi dan Pemberdaya Indonesia (ASPPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37695/pkmcsr.v6i0.2002

Abstract

Lokasi masyarakat sasar terletak di desa Bojongsari ini hanya berjarak 2,5 km dari kampus Universitas Telkom. Dengan sinergi antara perguruan tinggi dengan perusahaan pemberi dana CSR, banyak solusi yang bisa dilakukan untuk menyelesaikan berbagai masalah yang terjadi di masyarakat. Program Pengabdian kepada Masyarakat (PkM) skema kolaborasi multi-years di Madrasah Darul Muttaqin Al-Insani, telah berhasil mengubah paradigma dari lembaga pendidikan non-formal biasa menjadi luar biasa, yang ditandai dengan banyaknya prestasi yang diraih baik oleh individu siswa maupun oleh lembaganya. Untuk mencapainya, perlu diskusi panjang untuk melahirkan perencanaan yang matang, tahapan solusi yang logis dalam rentang 4 tahun (2019-2022), serta memadukan kemampuan finansial donatur dan kompetensi personil yang dilibatkan sesuai dengan masalah yang disolusikan.
Microwave Link License Fee for 5G Backhaul Connectivity (Study Case: Indonesia) Yusri, Alvin; Adriansyah, Nachwan Mufti; Hanuranto, Ahmad Tri
Buletin Pos dan Telekomunikasi Vol. 21 No. 2 (2023): December 2023
Publisher : Centre for Research and Development on Resources, Equipment, and Operations of Posts and I

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17933/bpostel.v21i2.375

Abstract

Frequency is a limited resource that cannot be made by humans. Therefore, its usage needs to be regulated so new technology like 5G still get frequency allocation. The 28 GHz frequency is an option that can be used in Indonesia for 5G technology, because it gets a large bandwidth allocation, namely 112 MHz. For the frequency to be used efficiently, one of the efforts is using the frequency license fee. In Indonesia, the frequency license fee is regulated in the regulation regarding BHP ISR for microwave link services. However, prices applied in Indonesia for 5G backhaul frequencies are too low compared to other countries such as India and Australia. With the same conditions, India applies Rp. 771,207,014, Australia Rp. 142,318,583, while Indonesia applies Rp. 32,949,287 for the frequency license fee. Based on the results of calculations, simulations, and changes to the components of the BHP ISR formula, it increases the frequency license fee to Rp. 81,320,400 which experienced an increase of 146%. The new price obtained is still below the price of other countries, because other countries have a larger GDP than Indonesia. This new price expected to make frequency usage more efficient and provide an increase in state income.
IEEE 802.11ah Network Planning for IoT Smart Meter Application: Case Study in Bandung Area Adhiatma, Fachri Nugraha; Perdana, Doan; Adriansyah, Nachwan Mufti; Raharjo, Risqi Herlambang
Jurnal Pekommas Vol 5 No 1 (2020): April 2020
Publisher : Sekolah Tinggi Multi Media “MMTC” Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30818/jpkm.2020.2050102

Abstract

The growth of Wireless Fidelity (WiFi) technology is so rapid and popular. The technology most widely used for WiFi services is the IEEE 802.11 family of standards. To support the Internet of Things (IoT) era, 802.11ah standard technology has developed, and the standard is intended to provide a low-cost mode of operation, with a wider coverage area, and can support thousands of devices per cell. This paper discusses IEEE 802.11ah Standard Network Planning for the Internet of Things Application (Case Study: Smart Meter Using WiFi.id Network in Bandung), to improve network quality in terms of coverage and capacity to improve the efficiency of the WiFi network and so that it can supports the Internet of Things (IoT) service. Network planning using 802.11ah for the internet of things application with a smart meter case study using the WiFi.id network has been successfully carried out. To cover the entire area of Bandung, 23 sites are required. In the capacity, the Tx slots needed to cover possible smart meters for each site are only 9 tx slots out of a total of 100 tx slots. 
Evaluasi Coded Random Access untuk Visible Light Communication pada Model Kanal Non-Line Of Sight PAMUKTI, BRIAN; ADRIANSYAH, NACHWAN MUFTI; NILADBRATA, REYVALDO FAHREZY
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 10, No 2: Published April 2022
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v10i2.405

Abstract

ABSTRAKPenggunaan Non-Orthogonal Multiple Access (NOMA) pada sistem komunikasi dapat memberi kebebasan bagi user untuk mengirimkan informasi secara bersamaan tanpa harus memperebutkan timeslot ataupun frekuensi. Coded Random Access (CRA) adalah salah satu bagian dari Coded Comain-NOMA (CDNOMA) yang menggunakan kode tanpa ortogonal untuk komunikasi uplink. Terinspirasi dari Additive Links On Line Hawaii Area (ALOHA), kami menggunakan metode Irregular Repetition Slotted ALOHA (IRSA) dengan tiga jumlah slot node dan sembilan degree distribution pada model kanal Line Of Sight (LOS) dan Non-LOS (NLOS). Kami menggunakan metrik pengukuran berupa throughput dan Packet Loss Ratio (PLR) untuk memperoleh hasil simulasi. Dari simulasi yang ekstensif, kami membuktikan bahwa IRSA stabil pada jumlah slot node yaitu 75, 150 dan 300 yang memperoleh throughput di sekitar 0.75 paket/slot.Kata kunci: Coded Random Access, Non-Orthogonal Multiple Access, Slotted ALOHA, Successive Interference Cancellation ABSTRACTThe use of Non-Orthogonal Multiple Access (NOMA) in communication systems can provide users the freedom to transmit information simultaneously without having to fight over timeslots or frequencies. Coded Random Access (CRA) is a part of Coded Domain-NOMA (CD-NOMA) that uses orthogonal code for uplink communication. Inspired by the Additive Links On Line Hawaii Area (ALOHA), we use the Irregular Repetition Slotted ALOHA (IRSA) method with three number of node slots and nine degree distributions on the Line Of Sight (LOS) and Non-LOS (NLOS) channel models. We use measurements in the form of throughput and Packet Loss Ratio (PLR) to obtain simulation results. From extensive simulations, we prove that IRSA is stable on a wide number of node slots of 75, 150 and 300 that acquire throughput in about 0.75 packets/slot.Keywords: Coded Random Access, Non-Orthogonal Multiple Access, Slotted ALOHA, Successive Interference Cancellation
Analisis Performansi Multi User Detection pada Kanal NLOS untuk Sistem NOMA-VLC PRATAMA, BIMA SURYA; ADRIANSYAH, NACHWAN MUFTI; PAMUKTI, BRIAN
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 2: Published April 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i2.482

Abstract

ABSTRAKNon-orthogonal multiple access (NOMA), mulai diteliti untuk dapat digunakan sebagai teknik multiple access yang efektif pada jaringan 5G karena teknik ini dapat menghemat bandwidth modulasi. Pada penelitian ini, NOMA diterapkan untuk sistem downlink Visible Light Communivation (VLC). Kami telah melakukan analisis performansi Multi-User Detection (MUD) pada kanal propagasi Non-Line of Sight (NLOS) dengan mempertimbangkan efek reflektor dan efek bayangan (shadowing). Kami juga mempertimbangkan teknik MUD yang digunakan pada penelitian ini yaitu Succesive Interference Cancellation (SIC). Setelah simulasi yang ekstensif, kami menemukan bahwa dengan penerapan SIC sebagai MUD pada sistem NOMA-VLC lebih baik dibandingkan dengan tanpa NOMA. Selain itu, kami juga memperoleh peningkatan data rate sebesar 72 %.Kata kunci: VLC, NOMA, NLOS, MUD, Optical Wireless Communication. ABSTRACTNon-orthogonal multiple access (NOMA), began to be studied to be used as an effective multiple access technique on 5G networks because this technique can save modulation bandwidth. In this research, NOMA is applied to the Visible Light Communivation (VLC) downlink system. We have performed a Multi-User Detection (MUD) performance analysis on Non-Line of Sight (NLOS) propagation channels by considering the reflector and shadowing effects. We also consider the MUD technique used in this study, namely Successive Interference Cancellation (SIC). After extensive simulations, we found that the application of SIC as MUD to the NOMA-VLC system is better than without NOMA. In addition, we also achieve an increase in data rate of 72%.Keywords: VLC, NOMA, NLOS, MUD, Optical Wireless Communication.
Frequency recommendation for long term evolution network implementation using simple multi attribute rating technique Angelia, Putri; Munadi, Rendy; Adriansyah, Nachwan Mufti
Indonesian Journal of Electrical Engineering and Computer Science Vol 25, No 3: March 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v25.i3.pp1563-1570

Abstract

The increasing demand for telecommunication services causes data traffic density. Therefore, in this research, the long-term evolution (LTE) network expansion was carried out using a choice of frequency bands of 700 MHz, 2100 MHz, and 2300 MHz. The analysis was carried out from the technical and economic aspects. Frequency band recommendations were obtained using the simple multi-attribute rating technique (SMART) method. This research was conducted using a case study of Semarang City. Based on the simulation results, the average of reference signal receive power (RSRP) values for frequency 700 MHz and 2300 MHz is in the very good range, while the frequency of 2100 MHz is in the good range. The signal to interference noise ratio (SINR) values for the three frequencies are in the normal category and the throughput values are in the very good category. The techno-economic calculations of the three frequencies, namely the value of internal rate of return (IRR), net present value (NPV), and payback period are included in the business category that is feasible to do. Based on the ranking results, the 700 MHz frequency is the most superior, both in terms of technical and economic aspects.
Konfigurasi Localhost pada Jaringan WiFi di Hotel Situmorang, Holan Mikhael S. B.; Adriansyah, Nachwan Mufti; Hantoro, Gunadi Dwi
eProceedings of Engineering Vol. 11 No. 6 (2024): Desember 2024
Publisher : eProceedings of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dalam industri perhotelan, pengelolaan jaringan WiFi menjadi faktor krusial untuk memastikan pengalaman optimal bagi para tamu. Kualitas layanan yang baik, termasuk akses internet yang cepat dan stabil, dapat meningkatkan kepuasan pengunjung. Penelitian ini bertujuan untuk mengoptimalkan pengelolaan jaringan WiFi di Grand Hotel Preanger dengan menggunakan server lokal (localhost). Server lokal yang terprogram pada Mini PC akan dihubungkan ke pusat jaringan nirkabel di hotel. Dengan demikian, pemantauan jaringan WiFi dapat dilakukan secara efisien. Beberapa aspek yang dipantau meliputi kekuatan sinyal, kecepatan transfer data, dan penggunaan bandwidth. Manfaat menggunakan server lokal pada pusat jaringan antara lain kemandirian (tanpa mengandalkan layanan pihak ketiga), efisiensi (pemantauan langsung mengurangi latensi), dan akurasi (data yang ditampilkan berasal dari pusat jaringan hotel sehingga langsung ditampilkan pada website). Dengan menggabungkan teknologi server lokal dan pemantauan realtime, penelitian ini diharapkan dapat meningkatkan kualitas layanan WiFi di Grand Hotel Preanger. Data yang dikirimkan melalui komputer akan tampil pada website, memudahkan pengelolaan dan pengambilan keputusan. Kata kunci — Grand Hotel Preanger, Server Monitoring.
Co-Authors Adhiatma, Fachri Nugraha Aditya , Reza Afifah, Syifa Hana Agus Dwi Prasetyo Ahmad Tri Hanuranto Aisy, Naura Safina Rahadatul Akbar Rozak Akhmad Hambali Andi Fadil Mappareppa Andi Kahfi Basofi Aprian Firlanda Imani Arafah, M. Ilmil Madya Noor Arfianto Fahmi Ariati Diah Wardhany Arum Rachmapramita Arum Rachmapramita, Arum Astri Wulandari Averrous Cendikia Islami Bagio Budiardjo Bambang Setia Nugroho Bayu Ardiansyah Rahmadhani Brian Pamukti Brian Pramukti Budi Syihabuddin Desi Nurqamarina Ramadhani DHONI PUTRA SETIAWAN Doan Perdana Edgar Giovanni Ariestawan EDWAR EDWAR Erna Sri Sugesti Fachri Nugraha Adhiatma Fahrizal Mohamad Fadli Fairuzh Shalma Nabila Farhan, Mhd Althalif Febri Zenti Ramadhani Feralia Fitri Fitri Imansyah Hafidudin . Hanifah, Dyatisa Hantoro, Gunadi Dwi Harfan Hian Ryanu Herlina, Lisye Hibatullah, Helmi Putra Hikmah, Indah Nurul Jangkung Raharjo KHOIRUL ANWAR Kris Sujatmoko Kusumawardhani, Eka Lista Anggayani Martinus Erico Noktafianus Hindarto Maulana, M. Irfan Miftakhul Meiliana Rahmawati Muhamad Asvial Muhammad Dzaky Ivansyah Muhammad Fawwaz Nesta Radha Muhammad Irfan Maulana NILADBRATA, REYVALDO FAHREZY Ningrum, Nadhifah Puspita Nisa Noor Amalia Nur Andini Nur Izza Rahma Nurain Silalahi PRATAMA, BIMA SURYA Pratama, Faris Candra Yoga Putra, Leonardus Sandy Ade putri angelia Putri, Aquila Anandya Putu Riyana Paramita Raga Filydevilia Putra Raharjo, Risqi Herlambang Raihansyah, Muhammad Rafli Rana Ayunda Salsabila Rayhan Nauvaldi Rendy Munadi Rezha Aulia Riyanda Ridha Muldina Negara Rina Pudji Astuti Risqi Herlambang Raharjo Robby Aris Cahyadi Robby Awaludin Rozak, Akbar Salsabila, Siti Marwa Sambono, Oranda Aracelly Sari, Nunung Puspa Shilvy Fatma Fitria Rachmawati Silviana, Rena Situmorang, Holan Mikhael S. B. Sutari, Wiyono Syifa Hana Afifah Uke Kurniawan Usman Vika Oktavia Vinsensius Sigit Widhi Prabowo Yusri, Alvin