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All Journal Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Teknika Jurnal Forum Nuklir TELKOMNIKA (Telecommunication Computing Electronics and Control) Prosiding SNATIF Telematika : Jurnal Informatika dan Teknologi Informasi Seminar Nasional Informatika (SEMNASIF) Indonesian Journal on Computing (Indo-JC) Journal of Applied Electrical Engineering Jurnal Nasional Teknik Elektro dan Teknologi Informasi Teknomatika: Jurnal Informatika dan Komputer

Sujoko Sumaryono

Universitas Gadjah Mada

Author-ID : 2453553

Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology

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Rancang Bangun Identity and Access Management IoT Berbasis KSI dan Permissioned Blockchain Guntur Dharma Putra; Sujoko Sumaryono; Widyawan Widyawan
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 7 No 4: November 2018
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1118.359 KB)

Blockchain offers several technological break-throughs, ranging from monetary solutions to healthcare systems. Some approaches have proposed blockchain implementation in IoT for providing better performance and scalability. However, massive scale implementation of IoT devices suffers from several issues in identity and access managements of interconnected devices. The present study proposes the combination of permissioned blockchain and Keyless Signature Infrastructure (KSI) as a means of governing the identity and access management of IoT devices. KSI is known for its ability to offer digital signature services without the need of public or private key but hash trees updated in a regular basis. With the decentralization fashion of blockchain, KSI can be implemented more efficiently. The results may give an identity and access management with high scalability.

Unjukkerja Standar ZigBee pada WPAN dengan Topologi Mesh Eka Wahyudi; Risanuri Hidayat; Sujoko Sumaryono
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 1 No 2: Mei 2012
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (64.503 KB)

ZigBee standard can be used in wireless sensor networks (WSN) with a mesh topology. WSN which formed WPAN that uses ZigBee standard has the capability to thousands of WSN devices can be combined in a single WPAN. With that ability need to do testing WPAN performance parameters to get the number of WSN devices for the best performance in mesh topology. Using simulation program, the research measure throughput, traffic (sent, receive and drop), delay and hop number parameters. Testing about the influence of the number of WSN devices is done by running a simulation of the 20 kind WPAN where every WPAN has one WSN gateway and the number of WSN devices ranging from 5 and increasingly by 5 to reach the 100 WSN devices in a single WPAN. The results showed that WPAN performance with ZigBee standard in mesh topology has the best conditions when the maximum number WSN devices achieve 20 WSN devices.

Pengujian Jarak dan Waktu Gabung Protokol IEEE 802.15.4 / ZigBee di Lingkungan Indoor Koko Joni; Risanuri Hidayat; Sujoko Sumaryono
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 1 No 2: Mei 2012
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.395 KB)

Protocol IEEE 802.15.4/ZigBee is a standard for low power personal network. This paper discusses about router, end device and coordinator using ZigBee protocol in term of distance and time to join. Testing carried out by pairing and On/Off method that constitute communication model from router or end device to coordinator. The result showed that with pairing methods could far distance until outside building with further distance about 65 meters, while the distance using On/Off method can reach few room in indoor area. Longest time to join need about 1 minute 15 seconds. Compare with pairing method that always connected, On/Off method need more time to connect in ZigBee Network.

Pengembangan Virtual Appliance Server Dengan Metode Virtualisasi Novan Ardianto; Widyawan; Sujoko Sumaryono
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 1 No 1: Februari 2012
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

With the increasing of advanced and sophisticated computer technology currently, especially for PC and server, is marked by the appearance of dual core processor, quad core processor, even hexa core processor. Besides all applications currently, especially not 3D animation and games which utilize the maximum performance of the multicore processor, makes the advanced processor work with a low utilization rate or a little usage of this processor. The advanced processor can be used for running application and services virtually.Virtualization can be seen as a part of whole IT company trend currently. Day by day the virtualization engineering become more popular and widely used because in addition tosaving the power source, it can have a good performance at running various server services in a network. Even nowadays virtualization can run on a cluster infrastructure, which will produce HA (High Availability) server.By using applications, such as VirtualBox and Proxmox, which are very powerful tools, easily-setting and especially free, virtual appliances can be made including functions and services of a server in the real network. It aims to prove how effective and efficient the usage of the multicore processor computer is.

Purwarupa Sistem Peringatan Dini Awan Panas Gunungapi Berbasis Sistem Informasi Geografis (Kasus Gunung Merapi di Perbatasan Jawa Tengah dan Daerah Istimewa Yogyakarta) M. Nur Budiyanto; P. Insap Santosa; Sujoko Sumaryono
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 1 No 1: Februari 2012
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

One of the primary danger that is made by Meraapi mountain volcanic activity is pyroclastic flow which move fast and consists of gas that has a high temperature, volcanic ash and rock. This flow can move quickly down the mountain with a very high temperature. Merapi mountain natural conditions cause difficulties in visual monitoring of pyroclastic flow, whereas the usage of seismic equipment needs experts to analyze the data. This causes difficulties for staffs to warn people early, rapidly and precisely. So that, inspections are needed to plan an early pyroclastic flow warning system and be able to give a danger caution.The research devised an early pyroclastic flow warning based on geographical information system by using thermal sensor as a pyroclastic flow detector,this system is expected to give easiness in monitoring the flow and an early warning to people around Merapi mountain so that it can minimalize victims which is caused by pyroclastic flow. The research was done by surveying, observing and interviewing, whereas designing of the software using waterfall methodology or linear sequence model which consisted of analysis, design, implementation, and testing. Infrared thermal sensor using ATMega8535 microcontroller was used for the testing.The result of the research was a prototype of an early volcano pyroclastic flow warning which is based on geographical information system by utilizing thermal sensor as a pyroclastic flow detector. Thermal sensor used for the system is an infrared thermal sensor using microcontroller as an analog to digital converter. The system has facilities to set the sensor location, read the temperature on each sensor, and give n appropriate condition waning.

Penyisipan Kode Dalam Sinyal Iklan Radio Siaran Niaga Sebagai Penanda Identitas Kepemilikan Wahyu Dewanto; M. Farid Susanto; Sujoko Sumaryono
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 1 No 1: Februari 2012
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

Advertisements broadcasting service on radio is required to report data after performing broadcast correctly and should be accountable to the owners of ads on the date, hours of broadcasting and the number of ads that aired under the contract. Therefore, it is necessary to monitor the ads in accordance with the contract between the ads owner and the radio broadcaster. The monitoring can be done by code marking inside the ads as the identity of the owner. The insertion of the Custom DTMF code through the mixing signal was done using the principle of steganography in the time domain. This research was conducted with a variety of ads audio signal that mixed with noise signal and then analyzed regarding on the placement of the custom DTMF code. For detecting on the receiver side, the DTMF Custom signal must have the magnitude level properly. The results showed that the ads audio signal and the inserted custom DTMF codes can be read well by the detector and it wasn’t interfere the ads signal heard by the audience.

Co-Authors Addin Suwastono, Addin Adhistya Erna Permanasari Agung Priyanto Alif Subardono Anung Asmoro Anung Asmoro Ardianto, Novan Aziz Tariq Fitria Eka Wahyudi Eka Wahyudi Ian Gatra Sandika Ian Gatra Sandika Ikhsan Shobari Koko Joni Lukito Edi Nugroho M. Farid Susanto M. Nur Budiyanto M. Nur Budiyanto Novan Ardianto Nugroho, Nifwan Arbi Paulus Insap Santosa Putra, Guntur Dharma Rian Fahrizal Risanuri Hidayat Soedjatmiko Soedjatmiko Susanto, M. Farid Sutiyo - Wahyu Dewanto Wahyu Sapto Aji Widyawan Zawiyah Saharuna, Zawiyah

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