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All Journal Jurnal Simetris Jurnal Jaringan Telekomunikasi JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) West Science Interdisciplinary Studies
Atmadja, Martono Dwi
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Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Environmental Science

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Design and Build a Motor Vehicle Information System App using Location Based Service in the City of Malang Abror, Muhammad; Aisah, Aisah; Atmadja, Martono Dwi
Jurnal Jaringan Telekomunikasi Vol 13 No 3 (2023): Vol. 13 No. 03 (2023) : September 2023
Publisher : Politeknik Negeri Malang

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

Abstract

The service queue system at motor vehicle repair shops in Malang city is still manual, customers must find the nearest repair shop and visit the repair shop then queue for service without knowing the queue information. With a system like that, it will be difficult and take a long time for customers who want to do service. For this reason, we need an application to search for the nearest motor vehicle repair shop based on maps based on LBS (Location Based Service) and a motor vehicle service queue information system using a web server and applications with the Android operating system. The application of the location-based service concept to the workshop queuing information system application can be used to provide location-based information services. Customers will use an application that displays workshop information and the number of service queues according to what is input by the workshop admin. The result of this research is workshop queue information system application can be used to find out the user's location and the location of the nearest special vehicle repair shop around the user. From the experimental results, it is found that the web and application can work well.
The Effect of Using Environmentally Friendly Materials and Energy Efficiency in the Production Process on Reducing Carbon Emissions in the West Java Automotive Industry Soelistianto, Farida Arinie; Ansori, Tirangga; Haslinah, Andi; Atmadja, Martono Dwi; Utomo, Bekti
West Science Interdisciplinary Studies Vol. 2 No. 05 (2024): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v2i05.934

Abstract

This research quantitatively analyzes the effect of integrating environmentally friendly materials and energy-efficient production processes on reducing carbon emissions in the West Java automotive industry. Through surveys and statistical analysis, the study examines the adoption of sustainable practices among automotive manufacturers and assesses their impact on carbon emissions reduction. Findings indicate that companies actively embracing sustainable practices demonstrate a significant reduction in carbon emissions compared to those with minimal adoption. The results underscore the importance of prioritizing sustainability initiatives within the automotive industry to mitigate environmental impacts and contribute to global efforts to combat climate change.
Leaky Feeder as A VoIP Transmission Medium Atmadja, Martono Dwi; Soelistianto, Farida Arinie; Kristiana, Harrij Mukti; Indrianto, Argo
West Science Interdisciplinary Studies Vol. 2 No. 10 (2024): West Science Interdisciplinary Studies
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsis.v2i10.1339

Abstract

VoIP (Voice over Internet Protocol) is a technology that allows its user to transmit voices using an internet network, although the technology uses the internet as its transmission medium VoIP still uses cable for most of its applications resulting in complicated cable management if not managed properly, this method can be optimized via wireless transmission for more efficient mobility and system configuration. This research aims to find out the capabilities of Leaky Feeder cable as a medium for VoIP transmission. A leaky feeder system consists of a single cable that runs along its designated space. This cable has gaps that allow the radio signal to leak into or out of the cable along its entire length meaning it can cover a larger area than the usual point-to-point transmission using cable. The parameters observed in particular are Signal Strength, Bit Rate, Packet Loss, Delay, and Throughput, the data obtained is taken quantitatively and its average value is calculated to ensure the system efficiency. Signal Strength trial shows an average value of -60.25 dBm, while also having an uplink and downlink of each 14.86 Mbps and 12.79 Mbps, Bit Rate trial shows that the more clients are served the less bandwidth each client will have , The Packet Loss trial shows an outstanding 0.71% loss, the delay trial shows an average of 20.5ms delay with -40dbm signal quality, and finally Throughput trial shows the highest value at 388Kbps when performing one call with -65dbm signal quality . This shows that the application of Leaky Feeder cable use on VoIP transmission is in a good category. Using Leaky Feeders in buildings can also reduce the number of Access Point installations required to cover the same area.
INFORMATION RETRIEVAL TUGAS AKHIR DAN PERHITUNGAN KEMIRIPAN DOKUMEN MENGACU PADA ABSTRAK MENGGUNAKAN VECTOR SPACE MODEL Mas'udia, Putri Elfa; Atmadja, Martono Dwi; Mustafa, Lis Diana
Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol 8, No 1 (2017): JURNAL SIMETRIS VOLUME 8 NO 1 TAHUN 2017
Publisher : Fakultas Teknik Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (893.444 KB) | DOI: 10.24176/simet.v8i1.1016

Abstract

Pencarian pada database yang biasa dilakukan mahasiswa hanya mampu mencari judul yang sesuai berdasarkan kata kunci yang diinputkan, misalnya, jika kata kunci yang dimasukkan adalah “sistem cerdas” maka akan ditampilkan semua dokumen yang mengandung kata “sistem cerdas” namun sistem tidak bisa mengukur mana dokumen yang paling mirip. Untuk dapat melakukan pencarian berdasar substansi  yang  paling  mirip,    terdapat  teknologi  yang  disebut  information  Text  Retrieval.  Dalam penelitian ini akan dikembangkan suatu sistem temu kembali informasi judul tugas akhir dan perhitungan kemiripan dokumen menggunakan vector space model. Sistem secara otomatis akan melakukan indexing secara offline dan temu kembali (retrieval) secara real time. Proses retrieval dimulai dengan mengambil query dari pengguna, menerapkan stop word removal sehingga dihasilkan keyword yang compaq tetapi dapatmewakili query tersebut, kemudian sistem menghitung kemiripan antarakeyword dengan daftar dokumen  yang  diwakili  oleh  term-term  di  dalam  index.  Dokumen  akan  ditampilkan  diurutkan berdasarkan dokumen yang paling mirip.Dari hasil pengujian terlihat ketika keyword “android” dimasukkan maka akan tampil empat dokumen yang diurutkan sesuai tingkat kemiripannya, yaitu docId 3 dengan tingkat kemiripan 0.9512, docId 4 dengan tingkat kemiripan 0.5020, docId 2 dengan tingkat kemiripan 0.2671, docId 8 dengan tingkat kemiripan 0.1522.
Evaluasi unjuk kerja platform srsRAN untuk teknologi 4G LTE berbasis software defined radio Marya, Dianthy; Y, Ahmad Wildan; Zakaria, M. Nanak; Atmadja, Martono Dwi
JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Vol. 5 No. 3: September 2025
Publisher : Jurusan Teknik Elektro, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/jitel.v5.i3.2025.179-188

Abstract

Teknologi OpenRAN memungkinkan fleksibilitas jaringan seluler dengan memisahkan perangkat keras dan lunak, mengurangi ketergantungan pada vendor tunggal. Namun, implementasi OpenRAN berbasis Software Defined Radio (SDR) masih menghadapi tantangan dalam kualitas sinyal dan performa, terutama pada jaringan LTE skala kecil. Penelitian ini mengimplementasikan jaringan LTE menggunakan platform open-source Software Radio Systems Radio Access Network (srsRAN) dan perangkat SDR USRP B210, dengan fokus meningkatkan kualitas layanan melalui fitur seperti dynamic scheduling, dan alokasi Physical Resource Block (PRB). Jaringan dibangun dalam skema non-standalone dengan Evolved Packet Core (EPC) lokal, membentuk koneksi point-to-point antara dua User Equipment (UE) melalui eNodeB. Pengujian dilakukan selama 30 menit dalam lingkungan terkendali, dengan variasi jumlah PRB mulai dari 15 sampai 50. Hasil pengujian menunjukkan kedua UE berhasil terhubung: User 1 mencatat RSRP -83 dBm dan RSRQ -9 dB, sedangkan User 2 mendapat RSRP -82 dBm dan SNR 13 dB—nilai yang tergolong baik menurut standar 3GPP (RSRP > -90 dBm). Pengujian throughput FTP menunjukkan performa lebih tinggi di jaringan lokal (User 1: 2,7 MB/s, User 2: 1,3 MB/s), sementara speedtest HTTP ke cloud server memberikan kecepatan lebih besar, menunjukkan pengaruh backhaul. Analisis QoS dengan Wireshark mencatat throughput User 1 sebesar 21,288 KB/s (packet loss 0,96%) dan User 2 sebesar 13 MB/s (packet loss 0,97%). Peningkatan jumlah PRB meningkatkan bandwidth dan throughput, membuktikan efektivitas optimasi parameter di srsRAN. Penelitian ini mendemonstrasikan bahwa optimasi melalui fitur-fitur srsRAN berpotensi meningkatkan kinerja jaringan LTE berbasis SDR, yang relevan untuk dikembangkan dalam konteks jaringan privat maupun komunitas.
Co-Authors Aisah Aisah Ansori, Tirangga Haslinah, Andi Indrianto, Argo Kristiana, Harrij Mukti M. Nanak Zakaria, M. Nanak Marya, Dianthy Mas'udia, Putri Elfa Muhammad Abror Mustafa, Lis Diana Soelistianto, Farida Arinie Utomo, Bekti Y, Ahmad Wildan