Article Per Year (5 Year)
p-Index From 2020 - 2025
1.829
P-Index
This Author published in this journals
All Journal Jurnal Pendidikan Vokasi Jurnal Penelitian Saintek INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni Jurnal Nalar Pendidikan TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal technoscientia Jurnal Inovasi Teknologi Pendidikan Journal of ICT Research and Applications ELINVO (Electronics, Informatics, and Vocational Education) Proceeding of the Electrical Engineering Computer Science and Informatics JURNAL TEKNOLOGI TECHNOSCIENTIA Jurnal Penelitian Pendidikan Indonesia Journal of Information Engineering and Technology Journal of Information Technology and Education (JITED)
Eko Marpanaji
Universitas Negeri Yogyakarta
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

Published : 30 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 30 Documents
Search

 1   2   3 
DEKOMPOSISI TUGAS-TUGAS SOFTWARE-DEFINED RADIO (SDR) Marpanaji, Eko
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 2 No 1 Agustus 2009
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v2i1.412

Abstract

This paper addresses decomposition of the tasks of Software-Defined Radio (SDR) computation by taking Gaussian Minimum Shift Keying (GMSK) as a case study. The aim of this research was to produce a task graph of the SDR that was needed in scheduling of distributed computing with task parallelism using genetics algorithm. Based on the tasks decomposition and the evaluation of execution time of each task, we obtained a task graph of SDR computation. We conclude that there are eleven tasks for the modulator and fifteen for the demodulator.
Studi Eksperimen Unjuk-Kerja Modulasi DBPSK pada Platform Software-Defined Radio (SDR) Marpanaji, Eko; Trilaksono, Bambang Riyanto; Langi, Armein ZR; Kurniawan, Adit
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscentia Vol 1 No 1 Agustus 2008
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.557 KB) | DOI: 10.34151/technoscientia.v1i1.373

Abstract

This paper addresses Differential Binary Phase Shift Keying (DBPSK) modulation implemented on SDR platform for the development of digital data communications based on SDR. DBPSK modulation performance perceived at Packet Error Rate (PER) is evaluated in terms of Eb/No or S/N ratio, carrier frequency, bit rate, gain, roll-off factor of root Nyquist filter or root raised cosine filter, and of size of payload from delivered data. Based on this results, the smallest PER could be obtained by setting Eb/No value which is greater than 13 dB, carrier frequency of at least 0,3 MHz, optimum bit rate of 256 kbps, optimum range payload size of 2000 up to 4000 bytes, and roll-off factor of Nyquist or root-raised cosine filter of 0.1<alfa<0.9.
PENERAPAN PROBLEM BASED LEARNING UNTUK HIGHER ORDER THINKING SKILLS PADA SISWA PENDIDIKAN TEKNIK INFORMATIKA Dewanto, Satriyo Agung; Marpanaji, Eko; Mahali, Muh. Izzudin; Hasanah, Nur; Wulandari, Bekti
Elinvo (Electronics, Informatics, and Vocational Education) Vol 3, No 1 (2018): May 2018
Publisher : Department of Electronic and Informatic Engineering Education, Faculty of Engineering, UNY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (77.753 KB) | DOI: 10.21831/elinvo.v3i1.19779

Abstract

This research has purpose to know the difference between student learning result with computer network practice course and higher order thinking skill (HOTS) given by demonstration method with problem based learning (PBL) method. This research is a research using quasi experiment consisting of two classes as sample. The one class uses the demonstration learning method, while the other class uses the PBL method. This study has an analysis using t-test. the result of this research is able to show there is difference between student learning outcomes with high thinking ability in computer network practice class among students given demonstration method with students given PBL method. Students who were given demonstration learning methods resulted less than students who had been provided with PBL methods in order to improve learning outcomes.
Studi Eksperimen Unjuk-Kerja Modulasi DBPSK pada Platform Software-Defined Radio (SDR) Marpanaji, Eko; Trilaksono, Bambang Riyanto; Langi, Armein ZR; Kurniawan, Adit
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscentia Vol 1 No 1 Agustus 2008
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v1i1.373

Abstract

This paper addresses Differential Binary Phase Shift Keying (DBPSK) modulation implemented on SDR platform for the development of digital data communications based on SDR. DBPSK modulation performance perceived at Packet Error Rate (PER) is evaluated in terms of Eb/No or S/N ratio, carrier frequency, bit rate, gain, roll-off factor of root Nyquist filter or root raised cosine filter, and of size of payload from delivered data. Based on this results, the smallest PER could be obtained by setting Eb/No value which is greater than 13 dB, carrier frequency of at least 0,3 MHz, optimum bit rate of 256 kbps, optimum range payload size of 2000 up to 4000 bytes, and roll-off factor of Nyquist or root-raised cosine filter of 0.1<alfa<0.9.
DEKOMPOSISI TUGAS-TUGAS SOFTWARE-DEFINED RADIO (SDR) Marpanaji, Eko
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 2 No 1 Agustus 2009
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v2i1.412

Abstract

This paper addresses decomposition of the tasks of Software-Defined Radio (SDR) computation by taking Gaussian Minimum Shift Keying (GMSK) as a case study. The aim of this research was to produce a task graph of the SDR that was needed in scheduling of distributed computing with task parallelism using genetics algorithm. Based on the tasks decomposition and the evaluation of execution time of each task, we obtained a task graph of SDR computation. We conclude that there are eleven tasks for the modulator and fifteen for the demodulator.
PENGUKURAN UNJUK KERJA MODULASI GMSK PADA SOFTWARE-DEFINED RADIO PLATFORM Eko Marpanaji; Bambang Riyanto; Armein Z.R. Langi; Adit Kurniawan
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 5, No 2: August 2007
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v5i2.1344

Abstract

This paper addresses performance measurement of Gaussian Minimum Shift Keying (GMSK) modulation which is implemented on Software-Defined Radio (SDR) platform using Universal Software Radio Peripheral (USRP) from GNU Radio. GMSK modulation is very popular and is adopted as GSM cellular phone modulation standard.  The results of this research can be used as basic concept in developing wireless communication system based on SDR technology which is needed in Next-Generation Networks (NGN). The GMSK performance is measured in terms of Packet Error Rate (PER) with several of Eb/No, bit rate, modulation frequency, payload size, and gain values. Based on this research, the lowest PER can be achieved by setting Eb/No value equal to 20 dB, optimum bit rate = 256 kbps, BT 0.25, optimum payload size = 4092 bytes, and optimum gain equal to 100.
Designing and quality testing of “Digichip” virtual simulation software of Android platform for mobile-virtual learning supporting vocational mechatronics engineering Titih Rejyasmito Hadi; Eko Marpanaji
Jurnal Pendidikan Vokasi Vol 9, No 2 (2019): June
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1464.322 KB) | DOI: 10.21831/jpv.v9i2.23570

Abstract

Technology enhancement in any life aspects is undeniably crucial to face the globalization era. A strategic approach to touch any life aspect is gained through education. Supporting this educational long-term goal, this study aims to: (1) produce learning media in the form of a virtual-learning simulation software, which is capable of operation on mobile devices to facilitate mobile, portable, effective, economical, and operationally-safe learning; (2) test the developed software quality in terms of the functional aspects of suitability, maintainability, portability, and usability (ISO/IEC 25010). The subjects of this Research and Development (RD) study were class XI students of Mechatronics Engineering at SMTI Yogyakarta. The process of designing and testing software uses the V-model type Software Development Life Cycle (SDLC). Unit testing was done through the white-box technique with the base-path test, flowgraph, and independent path. The testing for integration, system, and acceptance used Black-box techniques. The study shows that: (1) V-models were used to design the "DigiChip" virtual simulation software to support virtual learning and mobile learning through the software development stage; (2) The software quality testing based on ISO/IEC 25010 shows that in the functional aspects suitability, all features function properly (very decent), its maintainability is of MI 84 (easy maintenance), it gains 100% portability, or can be operated on all Android OS kernels (very feasible), and its usability is 86.18% (very feasible) with Cronbach's Alpha 0.841 (good). Ninety percent of media experts and 100% of material experts consider that the developed software is very feasible.
The decision-making empirical model in vocational high school Masduki Zakarijah; S. Soenarto; Eko Marpanaji
Jurnal Pendidikan Vokasi Vol 8, No 2 (2018): June
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (114.008 KB) | DOI: 10.21831/jpv.v8i2.14787

Abstract

The objectives of this research is to know the pattern of causal relationships inter-variables on the decision-making empirical model in Vocational High School (SMK). The decision-making empirical model in Vocational High School, consisting of variables: (a) the adequacy of Information and Communication Technology (ICT), (b) the benefits of using information systems, (c) the ethics in decision making, (d) the contribution of school and social environments, (e) the intentions of behaviour, and (f) the patterns of decision-making. Relation between variables was tested statistically using path analysis. The results of the research are as follows. The varian explained by each variable is mathematically formulated in: ZY = 0.134 A + 0.141 B + 0.102 C + 0.486 D + 0.193 E. The most dominant effect for direct effect is D to E has ρDE = 0,47 and the correlation coefficient = 0,709.
Faktor-faktor eksternal yang memengaruhi hasil belajar pemrograman komputer mahasiswa PTIK STKIP PGRI PONTIANAK Muhamad Arpan; Eko Marpanaji
Jurnal Pendidikan Vokasi Vol 5, No 2 (2015): Juni
Publisher : ADGVI & Graduate School of Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpv.v5i2.6392

Abstract

Penelitian ini bertujuan untuk mengetahui: (1) gambaran tentang dosen, mahasiswa, dan fasilitas laboratorium komputer di STKIP PGRI Pontianak; (2) pengaruh motivasi mengajar dosen terhadap hasil belajar pemrograman komputer mahasiswa; (3) pengaruh kreativitas dosen terhadap hasil belajar pemrograman komputer mahasiswa; (4) pengaruh kompetensi dosen terhadap hasil belajar pemrograman komputer mahasiswa; (5) pengaruh fasilitas laboratorium komputer terhadap hasil belajar pemrograman komputer mahasiswa; (6) pengaruh motivasi mengajar dosen, kreativitas dosen, kompetensi dosen, dan fasilitas laboratorium komputer terhadap hasil belajar pemrograman komputer mahasiswa secara bersama-sama. Hasil penelitian ini menunjukan bahwa: (1) motivasi mengajar dosen, kreativitas dosen, kompetensi dosen, dan fasilitas laboratorium komputer termasuk dalam kategori baik; (2) motivasi mengajar dosen berpengaruh terhadap hasil belajar pemrograman komputer mahasiswa dengan nilai p=0,000 dan r2 =0,136; (3) kreativitas dosen berpengaruh terhadap hasil belajar pemrograman komputer mahasiswa dengan nilai p=0,000 dan r2=0,343; (4) kompetensi dosen berpengaruh terhadap hasil belajar pemrograman komputer mahasiswa dengan nilai p=0,000 dan r2 =0,258; (5) fasilitas laboratorium komputer berpengaruh terhadap hasil belajar pemrograman komputer mahasiswa dengan nilai p=0,000 dan r2=0,179; dan (6) motivasi mengajardosen, kreativitas dosen, kompetensi dosen, dan fasilitas laboratorium komputer secara bersamasama berpengaruh terhadap hasil belajar pemrograman komputer mahasiswa dengan nilai p=0,000 dan R2=0,564.
MOBILE INTERNETBERBASIS A MULTICONALLY MOBILE PHONE FOR SUPPORTING E-LEARNING Herman Dwi Surjono; Eko Marpanaji; Suprapto Suprapto; Kadarisman Tejo Yuwono
Jurnal Penelitian Saintek Vol 16, No 1: April 2011
Publisher : Institute of Research and Community Services, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (5928.707 KB) | DOI: 10.21831/jps.v16i1.1734

Abstract

Penelitian ini bertujuan untuk mengkaji teknologi alternatif dalam mengembangkan sistem layanan akses Internet bergerak (mobile internet). Sistem yang diteliti adalah Mobile   Internet Berbasis Telepon Seluler Multikoneksi (MIBTSM). MIBTSM menggunakan modem  GSM/CDMA, dengan mengimplementasikan penyeimbangan beban sehingga menghasilkan    Quality of Service (QoS) khususnya laju bit yang tinggi. Hasil penelitian berupa prototipe MIBTSM menggunakan Zeroshell dengan eksperimen konfigurasi dan implementasi penyeimbangan beban roundrobin atau failover. Hasil pengujian menunjukkan bahwa  sistem dapat bekerja dengan baik. Koneksi Internet menggunakan 2 modem telepon  seluler GSM dengan layanan Tsel Flash Corporate dimana laju bit masing-masing saat melakukan  unduhan adalah 500 Kbps s.d. 700 Kbps. Sistem multikoneksi dengan penyeimbangan   beban 2 modem tersebut menghasilkan laju bit saat melakukan unduhan sebesar 1 Mbps s.d. 1,5 Mbps. Kata  kunci:  mobile   internet, modem  GSM/CDMA, e-learning, penyeimbangan beban (load  balancing).
Co-Authors Achmad Fatchi, Achmad Adit Kurniawan Adit Kurniawan Adit Kurniawan Admadja, Ismalik Perwira Andri Mahendra Armein Z. R. Langi Armein Z.R. Langi Bamba Riyanto Trilaksono Bambang Riyanto Bambang Riyanto Trilaksono Bayu Nugraha, Nikko Aji Bekti Wulandari Dewanto, Satriyo Dewanto, Satriyo Agung Dyah Ayu Kusumaningrum Handaru Jati Hasanah, Nur Herman Dwi Surjono Ibnu Haldun Kadarisman Tejo Yuwono Langi, Armein ZR Masduki Zakarijah, Masduki Muhamad Arpan Muhammad Fauzan Rafi Muhammad Ihsaan Fathoni Muhammad Izzuddin Mahali Mus, Taufik Muslikhin Nur Hasanah Nur Hasanah Putra, Fatrah Ahmad Qotrunnada, Dafa Zenita Rizqi Aji Surya Putra Salma Kusumawardhani Satriyo Dewanto Setiawan, Muhammad Adi Febri Slamet Pujiono Soenarto Soenarto Sukardi, Suriany Suparman Suparman Suprapto Suprapto Thay Liung Titih Rejyasmito Hadi Totok Sukardiyo, Totok Umi Rochayati Umi Rochyati, Umi Viendy Nurul Kusumawan Zyainuri Zyainuri