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All Journal JETT (Jurnal Elektro dan Telekomunikasi Terapan) Journal of Applied Smart Electrical Network and System (JASENS) JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Jurnal ELTEK
Dianthy Marya
Politeknik Negeri Malang
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Antarmuka Mikrokontroller IoT (ESP32) Dengan USB Host max3421e Rieke Adriati Wijayanti; Ahmad Wilda Yulianto; Dianthy Marya; Muhammad Syirajuddin S.; Nurul Hidayati
Journal of Applied Smart Electrical Network and Systems Vol 1 No 02 (2020): Vol 1 No 02 (2020) : December 2020
Publisher : Indonesian Society of Applied Science (ISAS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jasens.v1i02.141

Abstract

Electronic equipment made using old technology or electronic equipment in the entry-level category has not been supported by networking equipment, so for the data communication process, the microcontroller requires interfacing facilities that are in accordance with the electronic equipment used, such as a USB port. With the microcontroller that supports IoT, it allows electronic equipment to communicate over the network. An IoT microcontroller such as the ESP32 is equipped with a WiFi feature but is not equipped with a USB controller feature, while the USB Host max3421e supports the communication process using SPI, so that those two microcontrollers can be used to form an interface using the SPI bus. This interface can be applied to electronic equipment with old technology and entry level electronic equipment for wireless communication. For the needs of making an interface between the ESP32 and max3421e, a software was developed by analyzing the SPI features of the ESP32 and the USB protocol according to the USB device state diagram. The results obtained are the handshake process between systems developed with USB devices in the Low-Speed ​​and Full-Speed ​​categories such as printers, flashdisk, bluetooth mouse and external hard disk, and the device descriptor data of each device tested can be read properly.
ANALISIS PERBANDINGAN PERFORMA PADA PERANCANGAN JARINGAN 5G NEW RADIO MENGGUNAKAN FREKUENSI 3,5 DAN 24 GHz DI KOTA YOGYAKARTA Dianthy Marya
Jurnal Elektro dan Telekomunikasi Terapan (e-Journal) Vol 9 No 1 (2022): JETT Juli 2022
Publisher : Direktorat Penelitian dan Pengabdian Masyarakat, Universitas Telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/jett.v9i1.5052

Abstract

Indonesia is starting to prepare to launch a 5G NR network in the near future to support the implementation of industry 4.0 and the ever-increasing data rate needs. This study will serve as a starting point for planning the deployment of 5G NR technology and as a guide for decision-makers in the Indonesian telecommunications industry. It compares the performance of 5G NR networks based on regional coverage at the 3.5 GHz and 24 GHz frequencies in the City of Yogyakarta. The link budget approach is calculated using the Urban Micro (UMi) and Urban Macro (UMa) propagation models. The calculation results show that the pathloss, cell radius, and number of gNodeB values ??for the 3.5 GHz frequency are 5 sites, while the maximum 24 GHz frequency is 157 sites. The parameter values for coverage, quality, service area, and capacity are then obtained by simulation using the Atoll software. According to the simulation results, the expected PUSCH & PUCCH signal levels and SS-RSRP coverage level achieve satisfactory results with values that are not significantly different in both uplink and downlink circumstances. The quality downlink level prediction simulation in the PDSCH C/(I+N) is rated as very excellent, whereas the quality downlink level prediction is rated as good. While the uplink uses 16 QAM for modulation, the downlink uses 64 QAM for the service area prediction simulation. According to the simulation, the predicted downlink capacity is 180 Mbps, while the predicted uplink speed is 117 Mbps.
Skema network coding dan teknik pemilihan relay pada modul WARP di lingkungan indoor Nurul Hidayati; Rieke Adriati Wijayanti; Ahmad Wilda Yulianto; Dianthy Marya; Muhammad Syirajuddin Suja'i
JURNAL ELTEK Vol 19 No 1 (2021): ELTEK Vol 19 No 1
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (858.222 KB) | DOI: 10.33795/eltek.v19i1.287

Abstract

Abstrak Di penelitian ini telah dilakukan teknik pemilihan relay dengan metode single relay selection dikombinasikan dengan network coding yang diimplementasikan pada kanal real menggunakan modul Wireless Open-Access Research Platform (WARP) di lingkungan indoor. Tujuan penelitian untuk memilih relay terbaik dari beberapa relay sehingga memperpendek waktu pengiriman data dan dapat meningkatkan performansi melalui pengukuran throughput. Metode penelitian digunakan 4 WARP sebagai node, 2 sebagai node source dan destination dan 2 sebagai relay, penelitian dilakukan di lingkungan indoor. Pemilihan relay terbaik dari beberapa relay digunakan metode single relay selection. Pengukuran dilakukan dengan memvariasikan letak relay sehingga didapatkan hasil yang maksimal. Hasil penelitian didapatkan bahwa pemilihan relay terbaik didasarkan pada relay dengan BER terkecil dan jarak terpendek dari node sumber yang dipilih. Proses network coding juga dilakukan di sisi relay dan penerima. Hasil sesuai dengan tujuan penelitian bahwa network coding unggul dalam transmisi data, ditunjukkan dengan cycle time network coding lebih kecil dari pada cycle time tanpa network coding, karena network coding mempunyai 3 timeslot pada proses pengiriman data, sedangkan untuk tanpa network coding membutuhkan 4 timeslot dalam pengiriman data. Hasil penelitian juga didapatkan bahwa pengukuran throughput, network coding mempunyai throughput lebih besar 21.8% dibandingkan tanpa network coding. Abstract In this research, the relay selection technique by applying the single relay selection method is combined with network coding implemented in real channels using the WARP module in an indoor environment. The research objectives are to choose the best relay from several relays and can improve performance through measurement of throughput. The research method used 4 WARPs as nodes, 2 as source and destination and 2 as relays. The process of selecting the best relay from several relays uses the single relay selection method. Measurements are made by varying the location of the relays to get best results. The results show that the relay with the smallest BER and minimum distance will be selected. Network coding is applied in relays and receiver. Network coding cycle time is better than without network coding, because network coding has 3 timeslots in the data transmission, whereas without network coding it requires 4 timeslots in data transmission. The results of the study for measuring throughput that network coding throughput is 21.8% greater than without network coding.
Evaluasi unjuk kerja platform srsRAN untuk teknologi 4G LTE berbasis software defined radio Dianthy Marya; Ahmad Wilda Yulianto; M. Nanak Zakaria; Martono Dwi Atmadja
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 M. Nanak Zakaria Martono Dwi Atmadja Muhammad Syirajuddin S. Nurul Hidayati Rieke Adriati Wijayanti Yulianto Yulianto