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Analisis Model Propagasi 3GPP TR38.900 Untuk Perencanaan Jaringan 5G New Radio (NR) Pada Frekuensi 2300 MHz di Area Urban Yuliana, Hajiar; Santoso, Fajar Malik; Basuki, Sofyan; Hidayat, Muhammad Reza
Telekontran : Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan Vol. 10 No. 2 (2022): TELEKONTRAN vol 10 no 2 Oktober 2022
Publisher : Program Studi Teknik Elektro, Fakultas Teknik dan Ilmu Komputer, Universitas Komputer Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34010/telekontran.v10i2.8233

Abstract

5G New Radio (NR) services can provide high data rates and low latency. The existence of 5G technology, especially in Indonesia, has been implemented by several cellular operators in the 2300 MHz and 1800 MHz frequencies. Therefore, a more detailed planning analysis is needed, especially in urban areas. In this study, planning for the 5G network needed in one of the urban areas in Cimahi City, West Java. This research was carried out for a frequency of 2300 MHz using the coverage planning analysis method. The propagation model used in this study is 3GPP TR38.900. Based on the analysis and calculations performed, obtained 26 sites for the area of ​​Cimahi City which has an area of ​​about 40.3 km². The location of the site is arranged based on the coverage conditions in the area and also based on the distribution of the 4G network that previously existed in the area, because the 5G planning used is the Non-Standalone 5G type. Based on the results of the coverage analysis carried out, the condition of the Synchronization Signal Reference Signal Received Power (SS-RSRP) signal level above -90 dBm reached 27.3% of the total area. This shows that the 5G network planning in this area can only cover an area of ​​up to a quarter of the total area.
Overcurrent and ground fault relay protection settings at tranformator-1 150kV/20kV Braga substation Rusiana Iskandar, Handoko; Mulyono, Herry; Charisma, Atik; Hidayat, Muhammad Reza
JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Vol. 3 No. 3: September 2023
Publisher : Jurusan Teknik Elektro, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/jitel.v3.i3.2023.181-190

Abstract

The occurrence of a malfunction at the substation results in power outages and losses in the electrical energy distribution system to consumers. Many tests are carried out to see the performance of the protection system, including the parameters of the over current relay (OCR) and ground fault relay (GFR) in the electrical energy distribution system. This research aims to analyze OCR and GFR values, analyze OCR setting, drop-off, and pick-up values, and analyze OCR time characteristics using DigSilent Power Factory 15.1 software based on existing equipment specification data at the Braga substation. The results show an OCR accuracy level of around 94% on the 20 kV and 150 kV sides. Meanwhile, 92.39% on the 20 kV GFR side and 94.87% on the 150 kV side. The setting value for the pick-up current is 0.92 A on the 20 kV side of the GFR and the drop-off current is 0.85 A on the 150 kV side with a pick-up current of 0.39 A and a drop-up current of 0.37 A. Setting a value on the 20kV side is greater than on the 150 kV side due to the difference in current transformer ratio values. The simulation results show that the OCR and GFR characteristic curves on both sides meet the criteria for a protection system with good performance.
Optimasi Jaringan 4G LTE pada Jalur Tol Cikopo Palimanan dengan Menggunakan Metode Physical Tuning Yuliana, Hajiar; Hidayat, Muhammad Reza; Permana, Ade Sena; Somantri, Nivika Tiffany; Dharmi, Ni Ketut Hariyawati
Jurnal Teknologi Informasi dan Ilmu Komputer Vol 11 No 3: Juni 2024
Publisher : Fakultas Ilmu Komputer, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25126/jtiik.937828

Abstract

Kebutuhan para pengguna akan layanan komunikasi maupun informasi yang dibutuhkan meningkat dengan cepat sehingga menyebabkan penyedia jasa pada layanan telekomunikasi seluler dituntu untuk berkembang guna memenuhi kebutuhan pengguna atau konsumennya dan terus mengembangkan kemampuan dan teknologi terkini. Dengan memanfaatkan teknologi komunikasi generasi keempat yaitu tekonologi 4G mengharapkan kecepatan jaringan yang cepat. Namun, teknologi 4G ini memiliki beberapa kendala yang menyebabkan kecepatan jaringan menjadi optimasi jaringan untuk memperbaiki kualitas jaringan agar dapat dipakai dengan optimal. Pada penelitian ini dilakukan proses optimasi untuk memperbaiki kondisi level sinyal Reference Signals Received Power (RSRP) di Jalur Tol Cikopo-Palimanan (Cipali). Proses optimasi dilakukan dengan menganalisis kondisi level sinyal RSRP berdasarkan data yang didapatkan dari operator dan di simulasikan di Atoll Planning Software dengan menggunakan metode physical tuning. Berdasarkan hasil data yang didapatkan dari simulasi menggunakan Atoll Planning Software, terdapat beberapa area yang memiliki coverage yang kurang baik dengan level RSRP dibawah -90 dBm, dan area tersebut merupakan area jalur tol yang rawan kemacetan kendaraan karena arus mudik lebaran atau perbaikan jalan. Optimasi dilakukan di 4 spot yang mempunyai kondisi level sinyal yang buruk dan setelah dilakukan optimasi terdapat perbaikan level sinyal dengan warna ungu (sekitar -100 dBm) berubah menjadi warna kuning (sekitar -90 dBm). Hal ini juga mempengaruhi presentase Coverage sinyal di area jalan tol cipali, yaitu terjadi perbaikan dan kenaikan persentase untuk level sinyal diatas -90 dBm yaitu dari 88,73% menjadi 90,67% dan juga mengalami penurunan persentase untuk level sinyal dibawah -90 dBm yaitu dari 11,27 menjadi 9,33%.
Differences of Serum Progesterone-Induced Blocking Factor (PIBF) Levels in Pregnant Women with Abortus Imminent and Normal Pregnancy (Study on Pregnancy I Trimester) Hidayat, Syarief Thaufik; Hidayat, Muhammad Reza
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i7.60748

Abstract

To determine the difference in serum Progesterone-Induced Blocking Factor (PIBF) levels in first-trimester pregnant women between abortion imminent and normal pregnancy. An analytical observational study with a cross-sectional method involving 54 research subjects consisting of 27 pregnant women with imminent abortion and 27 pregnant women with normal pregnancies. The dependent variable in this study was serum PIBF levels. In the imminent abortion group, PIBF levels had a mean of 59.43 ng/mL with a standard deviation of 9.05 ng/mL, a median value of 58.24 ng/mL with the smallest value of 47.95 ng/mL, and the largest value of 75.82 ng/mL. There was a correlation between gestational age (p<0.001) and PIBF levels with a strong negative correlation level (r= -0.775). In the normal pregnancy group, PIBF levels had a mean of 111.53 ng/mL with a standard deviation of 24.71 ng/mL, a median value of 108.51 ng/mL with the smallest value of 79.88 ng/mL, and the largest value of 191.14 ng/mL. There was a correlation between gestational age (p=0.049) and PIBF levels with a moderately positive correlation level (r=0.361). There was a significant difference in PIBF levels (p<0.001) between the abortion imminent group and the normal pregnancy group. Subjects with PIBF levels <77.85 ng/mL were at risk for imminent abortion than subjects with PIBF levels > 77.85 ng/mL. PIBF levels were significantly lower in the abortion imminent group than in the normal pregnancy group. In the abortion imminent group, an increase in gestational age was moderately correlated with a decrease in PIBF levels.