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All Journal ELKHA : Jurnal Teknik Elektro Semantik CESS (Journal of Computer Engineering, System and Science) ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Edu Elektrika Journal JETT (Jurnal Elektro dan Telekomunikasi Terapan) Journal of Applied Information, Communication and Technology (JAICT) JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING InComTech: Jurnal Telekomunikasi dan Komputer TELEKONTRAN: Jurnal Ilmiah Telekomunikasi, Kendali dan Elektronika Terapan Jurnal Pengabdian Masyarakat Borneo Journal of Applied Engineering and Technological Science (JAETS) Journal of Information Technology and Its Utilization JURPIKAT (Jurnal Pengabdian Kepada Masyarakat) Journal of Telecommunication, Electronics and Control Engineering (JTECE) Jurnal Nasional Teknik Elektro dan Teknologi Informasi eProceedings of Engineering RENATA Jurnal Pengabdian Masyarakat Kita Semua Jurnal INFOTEL Buletin Pos dan Telekomunikasi Jurnal SINTA: Sistem Informasi dan Teknologi Komputasi Jurnal Teknik Elektro
Solichah Larasati
Telkom University
Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Other

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Perbandingan Penggunaan Teknik Diversity pada Jaringan Gelombang Mikro di Lingkungan Danau Syahrul Hidayat Triwibowo; Eka Wahyudi; Solichah Larasati
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 8 No 3: Agustus 2019
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1107.566 KB)

Abstract

Microwave communication system is often implemented as a network cellular backhaul, due to its simplicity of installation and capability to reach remote areas which are difficult to reach using fiber optics. This paper compares themicrowave network with frequency diversity and space diversity technique in the lake area using Pathloss 5.0, using two sites, site Mongal and site Bintang in Aceh. These two sites are located in two cities separated by a Lake, so it doesn’t support wireline communications. Therefore, wireless communication is needed on site Mongal and site Bintang. Availability of the system without diversity optimization is 99.9554%. Using frequency diversity with frequency difference of 460 MHz, 920 MHz, and 1,380 MHz and using space diversity with space of 0.9 meter, 1.7 meter, and 2.6 meter, best availability of 99.9977% is obtained. The best availability is obtained using space diversity withmaximum spacing of 2.6 meter under the main antenna.
Broadband Channel Based on Polar Codes At 2.3 GHz Frequency for 5G Networks in Digitalization Era Khoirun Ni'amah; Reni Dyah Wahyuningrum; Solichah Larasati
JOURNAL OF INFORMATICS AND TELECOMMUNICATION ENGINEERING Vol 6, No 1 (2022): Issues July 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jite.v6i1.7310

Abstract

This research using a polar code and without polar codes -based broadband channel that is affected by human blockage using one of the 5G cellular network frequencies at 2.3 GHz, 99 MHz bandwidth, 128 blocks of Fast Fourier Transform (FFT) with Cyclic prefix-Orthogonal Frequency Division Multiplexing ( CP-OFDM) and Binary Shift Keying (BPSK) modulation. The use of high frequencies causes the technology to be sensitive to the surrounding environment and attenuation such as human blockage. The purpose of this research is to determine the performance results and analyze the BER parameters that use polar codes and without polar codes on 5G network broadband channels that are affected by human blockage. Broadband channel modeling on a 5G network is presented in a representative Power Delay Profile (PDP) with the influence of human blockage, which is obtained as many as 41 paths which have multiple delays of 10 ns on each path. This research also uses the scaling method on representative PDP because the use of FFT will produce 128 blocks, and the results of this scaling show that there are 9 lanes with multiple delays of 50 ns. The results of this study are close to the average Bit Error Rate (BER) of 10-4. BER performance without polar code is affected by human blockage requires Signal to Noise (SNR) of 30 dB, for theory BER on BPSK modulation requires SNR of 34.5 dB and BER performance using polar code only requires SNR of 23 dB. These results indicate that using a polar code can reduce or save power usage by 7 dB without a polar codes. Polar codes can minimize errors in the 5G network system, because polar codes are one of the strong codes and are one of the channel coding recommended by ITU to be applied to 5G network systems
Analisa Performansi Jaringan 5G pada Kondisi Line-of-Sight Menggunakan Frekuensi 3.3 GHz di Sawahan, Surabaya Solichah Larasati Larasati; Khoirun Ni'amah; Zein Hanni Pradana
Journal of Information Technology and Its Utilization Vol 5 No 2 (2022): December 2022
Publisher : Sekolah Tinggi Multi Media "MMTC" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56873/jitu.5.2.4892

Abstract

This research is expected to be the beginning of the initial design for the implementation of 5G technology in Indonesia especially in Area Sawahan, Surabaya based on the coverage area with the frequency of 3.3 GHz. Performance analysis with line-of-sight (LOS) conditions using propagation model urban macro (uMa) according to the recommendation of 3GPP (3rd Generation Partnership Project) TR 38.901. This research based on four scenarios, outdoor-to-outdoor (O2O) for downlink and uplink, and outdoor-to-indoor (O2I) scenario for uplink and downlink. Performance of 5G network simulated using Atoll 3.4 and shown the pathloss values ​​of 105.405 dB for uplink and 101.405 dB for downlink. The performance results in the O2O scenario for the uplink direction require 5 gNodeB and 8 gNodeB in the downlink direction. In the O2I scenario, the uplink direction requires as many as 6 gNodeB and the downlink direction as much as 9 gNodeB. The simulation parameters analyzed in this research are based on the signal strength received by the user (SS-RSRP) and signal quality (SS-SINR). The best result of SS-RSRP in the O2I uplink scenario is -89 dBm and the SS-SINR parameter in the O2O scenario is 0.93 dBm. These results show that in the city of Sawahan a 5G system can be applied.
Channel Coding Polar Codes pada Kanal 5G Dipengaruhi Human Blockage pada Frekuensi 2,3 GHz Arvy Allif Pramudyo Rachman; Reni Dyah Wahyuningrum; Solichah Larasati
InComTech : Jurnal Telekomunikasi dan Komputer Vol 12, No 2 (2022)
Publisher : Department of Electrical Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/incomtech.v12i2.13225

Abstract

Teknologi komunikasi seluler generasi ke-lima (5G) New Radio (NR) menggunakan frekuensi yang tinggi dari 1 – 28 GHz yang mengakibatkan teknologi sensitif terhadap redaman seperti human blockage. Penelitian ini menganalisis channel coding polar codes dengan kanal 5G yang dipengaruhi oleh human blockage pada frekuensi 2,3 GHz, bandwidth 99 MHz, Fast Fourier Transform (FFT) sebesar 128 dengan Cyclic Prefix- Orthogonal Frequency Division Multiplexing (CP-OFDM), dan modulasi Binary Phase Shift Keying (BPSK). Penelitian kanal 5G yang dipresentasikan dalam Representative Power Delay Profile (PDP) dengan pengaruh human blockage yang didapatkan sebanyak 41 path yang memiliki delay berkelipatan 10 ns pada setiap path. Penelitian ini menggunakan metode scalling pada representative PDP karena penggunaan FTT sebesar 128, hasil scalling menunjukan bahwa terdapat 9 path dengan delay berkelipatan 50 ns. Hasil dari penelitian ini dievaluasi pada average Bit Error Rate (BER) 10-4. Kinerja BER uncoded dipengaruhi oleh human blockage membutuhkan Signal to Noise Ratio (SNR) sebesar 30 dB, teori BER BPSK membutuhkan SNR sebesar 34,5 dB. dan kinerja BER polar codes membutuhkan SNR sebesar 23 dB. Hasil ini menunjukkan bahwa channel coding polar codes pada frekuensi 2,3 GHz mampu memperkecil pemakaian daya atau nilai SNR dengan gap SNR sebesar 7 dB.  Penelitian ini diharapkan dapat menjadi reeferensi dalam perkembangan teknologi 5G di Indonesia.
Modernization of Dense Wavelength Division Multiplexing (DWDM) Route Surabaya-Bangil To Increase Optical Network Capacity Imelda Uli Vistalina Simanjuntak; Solichah Larasati; Yosy Rahmawati S; Dina Amalia Santika
ELKHA : Jurnal Teknik Elektro Vol. 14 No. 2 October 2022
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/elkha.v14i2.56003

Abstract

Along with the increasing demand for data networks, on the Java island network traffic, especially the Surabaya - Bangil link, the operator increases the channel capacity by modernizing DWDM (Dense Wavelength Division Multiplexing) technology in its transmission equipment. At that time, the DWDM technology was DWDM 6800 with a maximum capacity of one port that could only accommodate 10 Gbit/s, while using DWDM 9800, the maximum capacity of one port could accommodate up to 100 Gbit/s. Modernization of DWDM 6800 to DWDM 9800 technology uses the cross-connect method so that it does not require many costs and can be done within a short duration of time so that network performance can be adequately maintained. As a result, after modernization, the network has sufficient reserves to cover demand for the next few years.
Analysis on the Impact of Implementing Inter-band Carrier Aggregation (CA) on the 5G-NR Networks Vanessa Agelliza; Solichah Larasati; Alfin Hikmaturokhman
Journal of Information Technology and Its Utilization Vol 6 No 1 (2023): June 2023
Publisher : Sekolah Tinggi Multi Media "MMTC" Yogyakarta

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

Abstract

Currently, cellular technology is advancing into the 5G era, which can support data speeds up to 10 Gbps on the uplink side and 20 Gbps on the downlink side. This study aims to plan a 5G NR network by implementing the inter-band carrier aggregation (CA) method. CA is one of the techniques used to achieve high data speeds and to combine two or more radio frequency bands. The primary cell uses band n40 at 2300 MHz with a 40 MHz bandwidth, while the secondary cell uses band n78 at 3500 MHz with a 100 MHz bandwidth. The area that we used for this network design is Agung Podomoro Land (APL) Tower Central Park area in West Jakarta. The propagation model used Urban Macro. Testing process is carried out by comparing the results between using CA and not using CA on the SSRSRP, SS-SINR, and data rate parameters. Simulation results show an average increase in each parameter after the inter-band carrier aggregation method is applied. The SS-RSRP parameter increased by 0.05% with a value of -82.02dBm, the SS-SINR parameter increased by 0.77% with a value of 15.71dB, and the data rate parameter significantly increased by 241.33% with a value of 803.66 Mbps. This proves that implementing the carrier aggregation method can improve the quality and capacity of the network, particularly the data rate, by maximizing the use of the bandwidth and resource block produced by the combination of component carriers.
Outage Performances of 5G Channel Model Influenced by Barometric Pressure Effects in Yogyakarta Solichah Larasati; Serli Ridho Yuliani; Achmad Rizal Danisya
JURNAL INFOTEL Vol 12 No 1 (2020): February 2020
Publisher : LPPM INSTITUT TEKNOLOGI TELKOM PURWOKERTO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20895/infotel.v12i1.463

Abstract

Abstract — The fifth-generation cellular technology (5G) is predicted to adopt a high-frequency channel, which could lead to a new challenge, namely, wave propagation attenuation. This attenuation is affected by natural conditions, such as barometric pressure, rain rate, humidity, and vegetation density. This paper proposes a 5G channel model under the barometric pressure effect to address the issue. The channel model is obtained from series computer simulations by operating frequency of 28 GHz and real-field parameters of Yogyakarta environments. The 5G channel model frameworks consist of two steps. First, generate the instantaneous Power Delay Profile (PDP) using NYU Wireless Simulator with real-field parameters of the environment. Second, the instantaneous PDP is then used to calculate the representative PDP. PDP differs from one country to another, especially on 5G technology, because of the high-frequency band, which is sensitive to nature. To observe the barometric pressure effect, we need to generate the instantaneous PDP with minimum and maximum barometric effects. PDP value used to calculate the outage probability of channel capacity (C) is smaller than the coding rate (R), indicating a failure of detection at the receiver based on the Shannon theory. Outage probability is obtained by the cumulative distribution function of the capacity evaluated against the coding rate. Outage probability results in both scenarios can reach a point of 10-4, for coding rate ½ needs 17.649883 dB, coding rate ¾ needs 20.020953 dB, and coding rate 1 needs 22 dB. This shows that barometric does not significantly influence the performance of the 5G communication system.
Coded Random Access Technique Based on Repetition Codes for Prioritizing Emergency Communication Khoirun Ni'amah; Solichah Larasati; Alfin Hikmaturokhman; Muntaqo Alfin Amanaf; Achmad Rizal Danisya
Buletin Pos dan Telekomunikasi Vol. 18 No. 2 (2020): December 2020
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.2020.180205

Abstract

This research uses repetition codes based on Coded Random Access (CRA) to support Internet of Things (IoT) to give priority to emergency commutations in super-dense networks. Degree distribution for emergency group and general group are obtained with extrinsic information transfer (EXIT) analysis to achieve small error performance shown by the very small gap between emergency group curve and general group curve. This research also evaluates performance by observing throughput and packet-loss rate (PLR) parameters from every groups. Offered traffic in PLR  for emergency group user is G= 0,7 packet/slot without fading and G= 0,65 packet/slot with fading, while for public group is G=0,699 packet/slot without fading and G=0,42 packet/slot with fading. Peak throughput for emergency group is G= 0,737 packet/slot without fading and G= 0,729 packet/slot with fading. Peak Throughput for public group is G= 0,699 packet/slot without fading and G=0,685 packet/slot with fading. Throughput values of emergency group are higher than those of the general group, indicating successful process of giving priority for emergency group.
Model Kanal 5G dengan Pengaruh Kelembapan pada Frekuensi 3,3 GHz dan Bandwidth 99 MHz Berbasis Convolutional Codes WAHYUNINGRUM, RENI DYAH; NI’AMAH, KHOIRUN; LARASATI, SOLICHAH
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 4: Published October 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i4.878

Abstract

ABSTRAKGenerasi telekomunikasi kelima (5G) diterapkan pada 2021 dengan frekuensi tinggi yang menyebabkan redaman yang besar dibandingkan pita sub-1 GHz. Penelitian ini mengkaji sistem 5G dengan frekuensi operasi 3,3 GHz dan bandwidth 99 MHz berdasarkan spesifikasi 5G dari Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) numerologi μ = 1 menggunakan parameter lingkungan yang diukur secara langsung di kota Bandung. Penelitian ini menemukan bahwa model kanal 5G dengan pengaruh kelembapan maksimum memiliki power delay profile (PDP) 9 path dengan nilai daya yang lebih kecil dan outage performances (𝑅>𝐶) yang lebih buruk dengan gap sebesar 0,3 dB dibandingkan dengan pengaruh kelembapan minimum. Hasil penelitian menunjukkan bahwa penggunaan convolutional codes dapat membantu menghemat Signal to Noise Ratio (SNR) dengan gap sebesar 3 dB. Hasil dari penelitian ini diharapkan dapat memberikan kontribusi bagi perkembangan komunikasi nirkabel 5G di Indonesia.Kata kunci: 5G, model kanal, convolutional codes, PDP, FER, BER. ABSTRACTThe fifth generation of telecommunications (5G) implemented in 2021, where high frequency which causes a large attenuation compared to the sub-1 GHz band. This research examines a 5G system with an operating frequency of 3.3 GHz and a bandwidth of 99 MHz based on the 5G specification of the Cyclic Prefix - Orthogonal Frequency Division Multiplexing (CP-OFDM) numerology μ = 1 using environmental parameters measured directly in Bandung, Indonesia. This research shows that the 5G channel model under maximum humidity has a 9 power delay profile (PDP) with a smaller power value and worse outage performances (𝑅>𝐶) with a gap of 0.3 dB compared to the effect of minimum humidity. The results showed that the use of convolutional codes can save the Signal to Noise Ratio (SNR) with gap of 3 dB. The results of this research are expected to contribute to the development of 5G wireless communications in Indonesia.Keywords: 5G, channel model, convolutional codes, PDP, FER, BER.
Proyeksi EXIT Chart untuk Memprioritaskan Data Komunikasi Manusia pada Jaringan Super Padat NI’AMAH, KHOIRUN; LARASATI, SOLICHAH
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 7, No 3: Published September 2019
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v7i3.508

Abstract

ABSTRAKPenelitian ini dilakukan untuk menguji jaringan masa depan dengan melibatkan ribuan mesin. Teknik Coded Random Access (CRA) akan dijadikan bagian penting pada teknologi komunikasi seluler generasi ke-5 (5G) tahun 2020 yang diprediksi data komunikasi manusia bercampur dengan mesin. CRA pada penelitian ini dipandang sebagai skema multiple access terbaru yang memanfaatkan coding (repetition dan MDS codes), penelitian ini berdasarkan repetition codes untuk mendesain sub-optimal degree distribution pada grup manusia dan mesin. Kinerja sistem dievaluasi menggunakan parameter proyeksi Extrinstric Information Transfer (EXIT) chart, throughput, dan packet-loss rate (PLR). Sub-optimal degree distribusi untuk grup manusia ((3,1),0.3, (8,1),0.7), grup mesin ((2,1),0.6, (4,1),0.4). Throughput grup manusia tanpa fading 0,775 paket/slot dengan fading 0,736 paket/slot dan grup mesin tanpa fading 0,669 paket/slot dengan fading 0,646 paket/slot. Kontribusi penelitian ini sangat signifikan karena data pada komunikasi manusia dapat diprioritaskan yang dilihat dari kinerja deteksi paket yang diterima tanpa error (throughput) pada grup manusia lebih tinggi dibanding mesin.Kata kunci: Repetition codes , EXIT Chart, Degree Distribusi, Manusia, Mesin. ABSTRACTThis research considers future super-dense networks. Coded Random Access (CRA) technique is ecxpected to be important in fifth generation (5G) celullar communication in 2020 predicted that human data communication are mixed with machines. CRA as a new multiple accesss sheme which exploiting coding (repetition and MDS codes), this research is based on repetition codes for design sub-optimal degree distribution for human and machines groups. The performance of prioritized are evaluated based on parameters, e.g., projection Extrinsic Information (EXIT) chart, throughput, and packet-loss rate (PLR). Sub optimal degree distribution human ((3,1),0.3, (8,1),0.7), machines ((2,1),0.6, (4,1),0.4). Throughput human without fading 0,775 packet/slot with fading 0,736 packet/slot and machine without fading 0,669 packet/slot with fading 0,646 packet/slot. The contribution of this research is significant because the data on human communication can be prioritized as seen from the performance of correctly received packets (throughput) in the human group is higger than machines.Keywords: Repetition Codes, EXIT Chart, Degree Distribution, Human, Machines.
Co-Authors Achmad Rizal Danisya Alfin Hikmaturokhman Amelia, Noor Anggun Fitrian Anggun Fitrian Isnawati Ari Endang Jayati Arvy Allif Pramudyo Rachman Br Perangin-angin, Syifa Lestari Darmanto Darmanto Dina Amalia Santika Eka Setia Nugraha Eka Wahyudi Elfira Nureza Ardina Gunawan Wibisono Hendry, Jans Imam Muhammadi Pradono Budi Imelda Uli Vistalina Simanjuntak Indah Permatasari Khoirun Ni'amah KHOIRUN NI’AMAH Lia Hafiza Melinda Br Ginting Mohammad Andri Kurnia Muhammad Panji Kusuma Praja Muntaqo Alfin Amanaf Ni'amah, Khoirun Niamah, Khoirun Ni’amah, Khoirun NI’AMAH, KHOIRUN Ni’amah, Khoirun Pradana, Zein Hanni Raudhatul Jannah Reni Dyah Wahyuningrum Rosyid, Figa Aghani Serli Ridho Yuliani Shinta Romadhona Shinta Romadhona Shinta Romadhona Sinurat, Robin Syahrul Hidayat Triwibowo Triwibowo, Syahrul Hidayat udlhiya, Ida Vanessa Agelliza Wahyu Pamungkas Wahyuningrum, Reni Dyah Wulandari . Yosy Rahmawati Yuliani, Serli Ridho Yusri Dwi Saifullah, Muhammad Yusuf, Miftakhudin Zein Hanni Pradana