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Aiti: Jurnal Teknologi Informasi
Published by Universitas Kristen Satya Wacana
ISSN : 16938348     EISSN : 26157128     DOI : https://doi.org/10.24246/aiti
Core Subject : Science,
Computer Science & IT
AITI: Jurnal Teknologi Informasi is a peer-review journal focusing on information system and technology issues. AITI invites academics and researchers who do original research in information system and technology, including but not limited to: Cryptography Networking Internet of Things Big Data Data Science Software Engineering Information System Web Programming Mobile Application Service System Artificial Intelligence Digital Image Processing Machine Learning Deep Learning Geographic Information System Context Aware System Management Information System Software-defined Network
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol 16 No 2 (2019)" : 6 Documents clear
Analisis Unjuk kerja Jaringan Microcell LTE Berdasarkan Variasi Level Modulasi Shafira Fajrin Arumsidi; Anggun Fitrian Isnawati; Ade Wahyudin
AITI Vol 16 No 2 (2019)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (297.812 KB) | DOI: 10.24246/aiti.v16i2.99-114

Abstract

The development of telecommunications technology continues to increase, especially in the use of cellular communication networks. Users of cellular networks today need high-speed communication to be able to enjoy the facilities offered such as streaming video, web browsing, e-mail and others. With the current increase in user capacity, it causes a lot of interference. Therefore, the use of modulation techniques needs to be considered. To find out the proper use of modulation, in accordance with the conditions of the region and the network used, this study examines the performance of variations in modulation levels, namely QPSK, 16QAM, 64QAM and 256QAM. The parameters measured in this study include RSRP, CINR, BER, user connected and throughput. Based on the coverage by RSRP simulation results, it was found that the RSRP did not change because the power signal will always adjust to any use of the modulation level. For coverage by CINR obtained to obtain a higher rate value, a higher CINR value is needed and for coverage by BER parameters, BER does not affect the bit per symbol carried by each modulation, only affects the different types of modulation. Meanwhile, in the capacity by Throughput parameter, QPSK modulation produces the lowest average throughput value of 14.01 Mbps followed by 16QAM 21.58 Mbps 64QAM 28.6 Mbps and 256QAM 33.87 Mbps. In addition, for the capacity by user connected parameters all connected users on all modulation used will produce 100% for capacity by user connected.
Analisis Hasil Pengukuran Performansi Jaringan 4G LTE 1800 MHz di Area Sokaraja Tengah Kota Purwokerto Menggunakan Genex Asistant Versi 3.18 Ferdinanta Karo Karo; Eka Setia Nugraha; Fikri Nizar Gustiyana
AITI Vol 16 No 2 (2019)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (468.184 KB) | DOI: 10.24246/aiti.v16i2.115-124

Abstract

The implementation of 4G LTE network and its advantages gave us faster speed of mobile network. We need to know the performance of LTE mobile network in Sokaraja Tengah – Indonesia, which deployed by Telkomsel network provider by comparing its RSRP, SINR, RSRQ, and throughput using drive test method of Genex Probe. Signal performance was measured by drive test dedicated mode on the streamed videos and analyzed with Genex Assistant. The result shows that generally Telkomsel’s 4G LTE network in Sokaraja Tengah has 99.7% of (-70) – (-90) dBm RSRP value, 85.09% of 1-15 SINR value, 99.23% of (-15)-0 dBm RSRQ value, average uplink 2575 kbps and downlink 1530 kbps of throughput.
Regenerasi Fungsi x2-9x-99 Dalam Pembangkit Bilangan Acak Berbasis CSRPNG Chaos David Lihananto; Alz Danny Wowor
AITI Vol 16 No 2 (2019)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (459.151 KB) | DOI: 10.24246/aiti.v16i2.125-134

Abstract

Penelitian ini menguji apakah fungsi f(x)=x2-9x-99 dapat digunakan sebagai pembangkit kunci dalam kriptografi. Fungsi kuadrat diregenerasi menggunakan metode iterasi titik tetap menjadi fungsi iterasi. Dilakukan pembagian digit angka untuk hasil keluaran fungsi iterasi untuk menghasilkan bilangan chaos. Pengujian pengacakan menggunakan pengujian run test dan monobit. Dilanjutan dengan pengujian kriptografi untuk dapatkan hasil korelasi antara chiperteks dan kunci yang akan dijadikan sebagai keputusan apakah kunci yang dihasilkan sudah acak atau tidak. Berdasarkan penelitian yang telah dilakukan fungsi iterasi xi = (xi-12-9xi-1-99)/9 dapat menghasilkan bilangan acak CSRPNG Chaos dengan tingkat korelasi yang paling mendekati nilai 0.
Simulasi Sistem Keamanan Jaringan Komputer Berbasis IPS Snort dan Honeypot Artilery Alja Aminanto; Wiwin Sulistyo
AITI Vol 16 No 2 (2019)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1000.769 KB) | DOI: 10.24246/aiti.v16i2.135-150

Abstract

The Intrusion Prevention System (IPS) Snort is a server security System that can prevent attacks by examining and recording all data packets as well as recognizing packets with sensors, when the attack has been identified, IPS Snort will deny the access (block) and log of all data packets identified. However by using only IPS Snort which can only check and note the Allert attacks that are incoming in less sense to secure a server by collaborating with the other server's secure system in the sense of being able to make the network security of the server better. Honeypot Artillery chosen which works when there is a Hacker trying to penetrate through open ports can be detected as if hackers can break through the system, then Honeypot Artillery will provide information about who attackers and how the attacker could enter the Snort IPS system for later record in the database that can be viewed on the Web interface, Allert recorded on the experiment that has been done in the database as much as 9453 on TCP protocol as much as 9%, UDP as much as < 1%, and ICMP As much as 91%.
Analisis Routing Protokol Optimized Link State Routing (OLSR) Pada Raspberry Pi Ulfa Septilia Permatasari; Indrastanti Ratna Widiasari
AITI Vol 16 No 2 (2019)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.866 KB) | DOI: 10.24246/aiti.v16i2.151-164

Abstract

Optimized Link State Routing (OLSR)is one of the two standard for mesh networks. OLSR is a link state routing protocol, which use hallo message and topology control (TC) to determine the link state information across the mobile ad-hoc network. OLSR is widely used in the wireless mesh network. Raspberry Pi is a mini computer which can be used as a node router to replace the function of a router in a wireless mesh network. In this research, Raspberry Pi is used as a router nodes to determine the performance of routing protocol OLSR. The parameters used to measure its performance is self-configure time, self-healing and bandwidth usage. The test results showed that the use of routing protocols OLSR on the Raspberry Pi in a wireless mesh network proved able to repair itself if there is a problem on the network since it has ability to self-configure and self-healing.
Perancangan Notifikasi Pesan Disposisi Pada Sistem Pengelolaan Surat Dinas Menggunakan Layanan API Media Social Billy Gerardhy Lainsamputty; Suprihadi Suprihadi
AITI Vol 16 No 2 (2019)
Publisher : Fakultas Teknologi Informasi Universitas Kristen Satya Wacana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (899.058 KB) | DOI: 10.24246/aiti.v16i2.165-186

Abstract

Based on the Department of Agriculture which still does not have the tools or media to manage the letter of service, both the incoming and outgoing mail which impact on the weak supervision follow-up of the service letter due to ignorance that the letter should be processed. This study was made as a visual and text notification of incoming and outgoing mail data with more detailed archive storage. This website application is supported by using social media telegram API service that is used as notification in the form of notification to the employee so that the Service Letter can be followed up immediately.

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