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All Journal Majalah Ilmiah Teknologi Elektro Jurnal RESISTOR (Rekayasa Sistem Komputer)
I Made Sukafona
STMIK STIKOM Indonesia
Computer Science & IT Electrical & Electronics Engineering Energy Engineering

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Analisis Coverage Dan Quality Of Service Jaringan WiFi 2,4 GHz Di STMIK STIKOM Indonesia Satwika, I Kadek Susila; Sukafona, I Made
Jurnal RESISTOR (Rekayasa Sistem Komputer) Vol 1 No 1 (2018): Jurnal RESISTOR Edisi April 2018
Publisher : LPPM STMIK STIKOM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (845.716 KB) | DOI: 10.31598/jurnalresistor.v1i1.150

Abstract

The rapid development of technology, especially mobile technology requires a network infrastructure that supports mobile devices. One of them is a wireless device that is WiFi (wireless Fidelity). STMIK STIKOM (STIKI) Indonesia is one of the campuses that have implemented WiFi technology to support teaching and learning activities. STIKI has installed 8 access points that are used to serve the civitas internet users. To know the performance of WiFi network in STIKI Indonesia, it is necessary to analyze the performance of WiFi network by measuring signal coverage and quality of service (QOS) analysis. In this research, coverage measurement is done by using android application WiFi Heat Mapper and QOS measurement is done by using wireshark application. The measured parameters of QOS are throughput, delay, jitter, and packet loss. Based on the measurements made the results obtained for signal coverage there are still some areas covered by a very small signal strength. Then for QOS measurement it is found that performance of WiFi network based on parameter of throughput, delay, jitter, and packet loss are in good category.
CONTENT BASED IMAGE RETRIEVAL DENGAN METODE COLOR MOMENT DAN K-MEANS Sukafona, I Made; Thalib, Emmy Febriani
Jurnal RESISTOR (Rekayasa Sistem Komputer) Vol 1 No 2 (2018): Jurnal RESISTOR Edisi Oktober 2018
Publisher : LPPM STMIK STIKOM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (629.15 KB) | DOI: 10.31598/jurnalresistor.v1i2.322

Abstract

Content Based Image Retrieval (CBIR) is a research cluster that is very important to overcome problems related to the image search process. The development of internet technology and data communication has caused the number of multimedia images currently circulating to be very high. This study took the Color Moment method to carry out the feature extraction process. Before the feature extraction process, a segmentation process was carried out to separate the background image and the foreground image. Next, each background and front image is stored in the database. Method performance measurement is done by calculating the value of precision and recall. The test image used is the Wang dataset consisting of ten image classes. The test results show the level of recall or completeness of the images that were found to have increased significantly after using the K-Means segmentation process. But a high enough recall value decreases the value of precision or the comparison of true images with the image found overall. Precision values ​​decrease when compared to the CBIR method without running the K-Means segmentation.
Rancang Bangun Sistem Informasi Manajemen Customisable Sebagai Alat Analisis Pengelolaan Energi Listrik Di Pt. Indovillas Bali I Made Sukafona; Nyoman S Kumara; I Ketut Gede Dharmaputra
Jurnal Teknologi Elektro Vol 12 No 1 (2013): (January - June) Majalah Ilmiah Teknologi Elektro
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (760.629 KB)

Abstract

Sistem informasi manajemen customizable sebagai alat analisis pengelolaan energi listrik di PT. Indovillas Bali merupakan suatu alat yang digunakan untuk mengelola data penggunaan energi listrik. Sistem customizable yaitu dapat disesuaikan dengan keadaan dimasing-masing vila, alur dan kebutuhan sistem dibuat dinamis agar dapat disesuaikan dengan keadaan. Dalam sistem terdapat sub-sub sistem berdasarkan para pengguna sistem yang memiliki database yang terpisah dengan hak akses sesuai dengan otoritas yang diberikan sistem. Hasil yang diharapkan dari sistem adalah report pengelolaan energi listrik yang terdiri dari  report penggunaan secara keseluruhan yang meliputi besaran konsumsi energi listrik setiap hari. Tingkat hunian kamar, serta batasan-batasan penggunaan energi listrik sebagai indikator perbandingan dengan data konsumsi energi listrik per hari Setiap bulan. Sistem juga diharapkan dapat menghasilkan potensi penghematan dari konsumsi energi listrik. Hasil dari keluaran sistem diharapkan dapat menjadi acuan utama  bagi manajer energi atau engineer dalam menentukan langkah-langkah yang tepat dalam penggunaan energi listrik yang efisien dan efektif. Bagi top manajemen, laporan ini diharapkan dapat menjadi bahan pertimbangan dalam menentukan harga sewa vila, dan memberikan informasi lebih terperinci tentang biaya konsumsi energi dalam pertanggungjawaban kepada pemilik vila.
Analisis Coverage Dan Quality Of Service Jaringan WiFi 2,4 GHz Di STMIK STIKOM Indonesia I Kadek Susila Satwika; I Made Sukafona
Jurnal RESISTOR (Rekayasa Sistem Komputer) Vol. 1 No. 1 (2018): Jurnal RESISTOR Edisi April 2018
Publisher : LPPM STMIK STIKOM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31598/jurnalresistor.v1i1.150

Abstract

The rapid development of technology, especially mobile technology requires a network infrastructure that supports mobile devices. One of them is a wireless device that is WiFi (wireless Fidelity). STMIK STIKOM (STIKI) Indonesia is one of the campuses that have implemented WiFi technology to support teaching and learning activities. STIKI has installed 8 access points that are used to serve the civitas internet users. To know the performance of WiFi network in STIKI Indonesia, it is necessary to analyze the performance of WiFi network by measuring signal coverage and quality of service (QOS) analysis. In this research, coverage measurement is done by using android application WiFi Heat Mapper and QOS measurement is done by using wireshark application. The measured parameters of QOS are throughput, delay, jitter, and packet loss. Based on the measurements made the results obtained for signal coverage there are still some areas covered by a very small signal strength. Then for QOS measurement it is found that performance of WiFi network based on parameter of throughput, delay, jitter, and packet loss are in good category.
CONTENT BASED IMAGE RETRIEVAL DENGAN METODE COLOR MOMENT DAN K-MEANS I Made Sukafona; Emmy Febriani Thalib
Jurnal RESISTOR (Rekayasa Sistem Komputer) Vol. 1 No. 2 (2018): Jurnal RESISTOR Edisi Oktober 2018
Publisher : LPPM STMIK STIKOM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31598/jurnalresistor.v1i2.322

Abstract

Content Based Image Retrieval (CBIR) is a research cluster that is very important to overcome problems related to the image search process. The development of internet technology and data communication has caused the number of multimedia images currently circulating to be very high. This study took the Color Moment method to carry out the feature extraction process. Before the feature extraction process, a segmentation process was carried out to separate the background image and the foreground image. Next, each background and front image is stored in the database. Method performance measurement is done by calculating the value of precision and recall. The test image used is the Wang dataset consisting of ten image classes. The test results show the level of recall or completeness of the images that were found to have increased significantly after using the K-Means segmentation process. But a high enough recall value decreases the value of precision or the comparison of true images with the image found overall. Precision values ​​decrease when compared to the CBIR method without running the K-Means segmentation.
Co-Authors I ketut Gede Darma Putra Nyoman S Kumara Satwika, I Kadek Susila Thalib, Emmy Febriani