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All Journal International Journal of Electrical and Computer Engineering Humaniora Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Jurnal Pendidikan dan Pengajaran Jurnal IKA Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Indonesian Journal of Electrical Engineering and Informatics (IJEEI) POSITIF Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Jurnal Organisasi Dan Manajemen Conference SENATIK STT Adisutjipto Yogyakarta Stabilita : Jurnal Ilmiah Teknik Sipil Fakultas Teknik Universitas Halu Oleo Kendari IJITEE (International Journal of Information Technology and Electrical Engineering) Indonesian Journal of Electrical Engineering and Computer Science Jurnal Gema Keperawatan Jurnal Seni dan Pembelajaran Jurnal Nasional Teknik Elektro dan Teknologi Informasi Gemakes: Jurnal Pengabdian Kepada Masyarakat Pancaran Pendidikan Teknomatika: Jurnal Informatika dan Komputer Journal Center of Excellent : Health Assistive Technology (CoE) Health Dynamics

I Wayan Mustika

Departemen Teknik Elektro Dan Teknologi Informasi Universitas Gadjah Mada

Author-ID : 326438

Aerospace Engineering Arts Humanities Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Feasibility of Power Control for Multi-Channel User in Inter-Femtocell Network Anggun Fitrian Isnawati; Risanuri Hidayat; Selo Sulistyo; I Wayan Mustika
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 4: August 2016
Publisher : Institute of Advanced Engineering and Science

The importance of power control feasibility is closely related to the direct implementation of the system, which is related to interference between users in the femtocell network and also related to the optimal use of power transmit that can create a long-lasting battery. Implementation of the feasibility of power control in this study is focused on the centralized femtocell network with a multi-channel user. The research method in this study is based on the use of feasible solution algorithms in power control by observing the output of power vector that should be valued non-negative, which means that it can be implemented. This result indicates that all of user can reach the specified target SINR. SINR users will increase when there are additional channels for user groups. The average power of user will also decrease while increasing the amount of provided channels. The greater number of users in a user group, the less value SINR can be obtained

Dithering Analysis in an Orthogonal Frequency Division Multiplexing-Radio over Fiber Link Fakhriy Hario P; Adhi Susanto; I Wayan Mustika; Sevia M Idrus; Sholeh Hadi P
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 3: June 2016
Publisher : Institute of Advanced Engineering and Science

Nonlinearity is one major problem broadband communication faced on utilizing the high capacity of optical fibers. That is due to scattering phenomenon, which results in the deviations of wavelengths and energies. The dithering method is applied in the attempt to reduce those scatterings. In this paper, we propose the performance of a dithering technique based new system OFDM-RoF using two modulator scheme and coherent detection to alleviate the characteristics nonlinearity applied on the system. The dithering technique inputs signal externally to the signal processing systems to eliminate the effects of nonlinearity. Here, we report the performance of a dithering technique based on the OFDM-RoF, the results our experiment showed that the applied dithering with 16 QAM modulation can make the system more reliable and increases the power level 1.55% with 193.1 THz, 2% with 100 THz and 1.99% ~ 200 THz, the best condition are with fd < fc. However, all condition close proximity in the parameters OLP (optical launch power), BER and SER measurement. The result demonstrated a high efficiency and good power in which the OLP operated 6.396 dBm / 4.361 E-3 W~fd 200 THz, 3.578 dBm / 2.279 E-3 W~fd 193.1 THz and 6.420 dBm / 4.3384 E-3 W~100 THz. The best BER value is achieved at 0.33 and SER 0.78 at 5 km~fd 100 THz, 0.33 and 0.768 for 10 km~fd 193.1 THz, 0.478 and 0.92 for 50 km~fd 193.1 THz.

CNR and BER Ranges for the DVB-T2 Reception-Success Budi Setiyanto; Risanuri Hidayat; I Wayan Mustika; Sunarno Sunarno
International Journal of Electrical and Computer Engineering (IJECE) Vol 7, No 6: December 2017
Publisher : Institute of Advanced Engineering and Science

DVB-T2 (Digital Video Broadcasting Terrestrial Second Generation) reception requires a sufficient quality of the received signal. CNR (carrier-to-noise ratio) and BER (bit-error-rate) are two of quantities describing the quality. This paper presents the range of each quantity providing a successful reception based on real data obtained by field-measurements. This data was collected from MO (mobile-outdoor) and SI (stationary-indoor) receiving-systems capturing signal sent by some on-air trial transmitters broadcasting services focused on the fixed-receivers. The result indicated that the successful and failed receptions were split into two quite separated (concentrated) ranges of post-decoded BER and therefore a boundary distinguishing them could be prominently defined. In contrast, they were spread in a wide common range of CNR and pre-decoded BER. Furthermore, the boundary that corresponded to this last quantity was ambiguous. In the case of MO reception as numerical examples, the two split ranges of post-decoded BER were less than about 10-5 and more than about 2.7 × 10-4 for the successful and failed receptions, respectively, whereas CNR as high as about 14 dB could be viewed as a soft boundary distinguishing these both reception-success conditions.

Performance Analysis of Digital Modulation for Coherent Detection of OFDM Scheme on Radio over Fiber System Fauza Khair; Fakhriy Hario P; I Wayan Mustika; Budi Setiyanto
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 3: June 2016
Publisher : Institute of Advanced Engineering and Science

Radio over fiber (RoF) system with the coherent detection offers high linearity for the transparent transport of high-frequency microwave signals, and better receiver sensitivity compared with intensity-modulated direct detection systems. The purpose of this paper is to analyze the performance of digital modulation for coherent detection of orthogonal frequency division multiplexing (OFDM) scheme on RoF system at 10 Gbps up to 100 km fiber length. The results show that coherent detection of OFDM-RoF system with 16 quadrature amplitude modulation (16-QAM) has the value of bit error rate (BER) and the symbol error rate (SER) is very low and its constellation is better compared with other modulation formats (4-QAM, quadrature phase shift keying (QPSK), 8-PSK and 16-PSK), which BER 16-QAM is 0.053 and SER is 15.7%. The results also show that BER value of 4-QAM and QPSK relatively similar to fiber length variations. In general, an increasing value of the BER and SER for each modulation format are almost equal to the fiber length of 60-70 km (Region I and II). However, there is a significant increase in the value of BER in fiber length of 80-100 km (Region III. A and III. B) for the modulation of 4-QAM, QPSK, 8-PSK, and 16-PSK.

Channel sharing utility function of power control game in cognitive femtocell network Anggun Fitrian Isnawati; Risanuri Hidayat; Selo Sulistyo; I Wayan Mustika
Indonesian Journal of Electrical Engineering and Informatics (IJEEI) Vol 7, No 2: June 2019
Publisher : IAES Indonesian Section

The use of sharing channel simultaneously has become the trend in telecommunication technology particularly in network with distributed users as the allocation of frequency spectrum becomes more crowded. The proposed power control method in cognitive femtocell network is based on game theory (commonly known as power control game, PCG). This method uses utility function formula as the goal of game theory for power strategy in power update process. Utility function formula of Proposed PCG includes channel sharing factor that aimed to accommodate the system requirement of channel sharing. The result showed that the implementation of channel factor is inversely proportional to the signal to noise and interference ratio (SINR) and transmit power, but proportional to utility function. In comparison of user transmit power and SINR with two other methods, can also be conclude that Proposed PCG was able to achieve SINR of 5.49 dB and above the SINR target 5 dB, while the Thalabani (TB) and Koskie-Gajic (KG) were only able to achieve respective SINR of 4.87 dB and 4.98 dB. It can be concluded that the Proposed PCG was better in achieving the SINR target. It means that the quality of service in this system can be fulfilled properly.

Perancangan Aturan Kebijakan Ruangan Berdasarkan Konteks Aktivitas Dan Jumlah Orang Menggunakan Rule-Based Untuk Pengendalian Perangkat Listrik Mokhammad Nurkholis Abdillah; I Wayan Mustika; Bimo Sunarfri Hantono
Seminar Nasional Aplikasi Teknologi Informasi (SNATI) 2016
Publisher : Jurusan Teknik Informatika, Fakultas Teknologi Industri, Universitas Islam Indonesia

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Gedung universitas memiliki berbagai ruangan dengan fungsi yang berbeda-beda. Pengoperasian perangkat listrik suatu ruangan pada gedung tersebut umumnya mengikuti jadwal penggunaan ruangan. Namun pengoperasiannya terkadang tidak sesuai dengan kebutuhan, seperti jumlah lampu yang dihidupkan tidak memperhitungkan jumlah orang didalam ruangan. Pada penelitian ini dilakukan perancangan aturan kebijakan (policy) untuk mengatur operasional perangkat listrik dengan memper-timbangkan karakteristik ruangan dan jumlah orang. Karak-teristik ruangan mengacu pada fungsi ruangan, kapasitas ruangan, dan perangkat listrik yang terpasang di dalam ruang-an. Aturan tersebut dikembangkan dengan metode rule-based dan diimplementasikan ke dalam sistem penjadwalan yang terintegrasi dengan Google Calendar. Hasil dari pengujian fungsionalitas menunjukkan bahwa aturan yang dikembangkan berhasil menentukan policy yang akan diterapkan untuk mengendalikan perangkat listrik sesuai dengan jenis aktivitas dan jumlah orang.

MEMBANGKITKAN KEMBALI TARI BEDAYO TULANG BAWANG DI KOTA MENGGALA LAMPUNG I Wayan Mustika
Humaniora Vol 19, No 2 (2007)
Publisher : Faculty of Cultural Sciences, Universitas Gadjah Mada

This study aims at reviving the dance of Bedayo Tulang Bawang and exploring the deep elements of the dance. Another objective is to comprehend the implied meaning of the neglected dance through the historical texts and contexts as well as the Menggala’s relevant culture. In the resurgence of the dance, there were obstacles such as the limited data and manuscripts on the dance of Bedayo Tulang Bawang. The only available sources are the dressmakers, the learners, and the people who happen to know the choreography. It is important and necessary to understand the dance because the dance has a deep sense and history in conjunction with the life of the people in Bujung Menggala Kampung, Tulang Bawang Regency.

IMPLEMENTASI ENCODER SANDI REED SOLOMON PADA CONTROLLER AREA NETWORK Wisnu Kartika; I Wayan Mustika; Agus Bejo
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2015): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 6 2015
Publisher : Prosiding SNST Fakultas Teknik

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EMI (Electromagnetic Interference) banyak ditemui pada sistem otomotif dan industri yang menggunakan kabel untuk menghubungkan antar device. Masalah utama saat ini ialah rentan terjadinya interferensi pada komunikasi antar device pada Controller Area Network (CAN). Maka akan diusulkan suatu skema rancangan untuk mengatasi burst error. Akan digunakan metode Reed Solomon Code dengan panjang kode (31, 27). Penelitian ini dapat membantu untuk mengurangi electromagnetic interference yang sering terjadi pada industri dan otomotif. Hasil dari penelitian ini ialah perhitungan bit paritas dan informasi yang akan dikirim melalui encoder sandi Reed Solomon. Kata kunci- ARQ, Controller Area Network, CRC, Reed Solomon codes.

Analisis Kinerja IP PBX Server Pada Single Board Circuit Raspberry PI Aidin Najihi; I Wayan Mustika; Widyawan Widyawan; Effan Najwaini
POSITIF : Jurnal Sistem dan Teknologi Informasi Vol 1 No 2 (2016): POSITIF - Jurnal Sistem dan Teknologi Informasi
Publisher : P3M Politeknik Negeri Banjarmasin

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Raspberry PI merupakan sebuah komputer mini berukuran kartu kredit yang memiliki kemampuan komputasi yang sangat bagus. Komputer dengan ukuran yang sangat kecil memiliki keunggulan dalam flexibilitas serta penggunaan energi. Raspberry dapat dikembangkan menjadi banyak kegunaan dalam dunia komputer. Konsumsi daya Raspberry sangat rendah yang sangat berguna untuk membuat aplikasi mobile yang hemat energi. Pada penelitian ini akan dibuat sebuah server IP PBX menggunakan Asterisk yang di-install pada single board circuit Raspberry PI. Pengujian dilakukan untuk untuk mengetahui kinerja Raspberry PI sebagai server IP PBX yang meliputi jumlah panggilan yang mampu dilayani serta banyaknya panggilan bersamaan yang mampu dilayani dengan menggunakan codec yang berbeda. Sebagai perbandingan, akan dilakukan juga pengujian terhadap IPPBX server Asterisk menggunakan PC. Berdasarkan hasil pengujian yang dilakukan, Raspberry PI sebagai IP PBX server mampu menangani 60 kedatangan panggilan perdetik tanpa adanya panggilan yang gagal diproses. Raspberry PI juga mampu menangani 110 panggilan bersamaan untuk codec GSM-GSM, 100 panggilan bersamaan untuk codec G711-G711 dan 70 panggilan bersamaan untuk transcoding GSM-G711.

Identifikasi Pengaruh Lintasan-Jamak pada DVB-T2 Berdasar Uji Penerimaan Siaran Budi Setiyanto; Risanuri Hidayat; I Wayan Mustika; Sunarno
Jurnal Nasional Teknik Elektro dan Teknologi Informasi Vol 5 No 2: Mei 2016
Publisher : Departemen Teknik Elektro dan Teknologi Informasi, Fakultas Teknik, Universitas Gadjah Mada

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In many countries, migration from analog to digital in television (TV) broadcasting technology is being in progress. Indonesia has adopted DVB-T2 (Digital Video Broadcasting-Terrestrial Second Generation) as the standard of free-to-air digital TV (DTV) broadcasting system. Frequency selective fading due to multipath propagation affects the reception of this terrestrial radio communication system. This paper presents those effects on reception of DVB-T2 signal from the Yogyakarta transmitting stations. The presence of these effects were identified experimentally, based on several received-signal describing quantities obtained from some field-observations on indoor/outdoor stationary/mobile receptions. Examples of these quantities are spectrum flatness measurement (SFM), signal quality (SQ) versus signal intensity (SI), power level (P) versus carrier-to-noise ratio (CNR), CNR versus modulation error ratio (MER), local variation of reception-success, and received data packet. Several numerical examples are: (1) SFM achieved as high as about 0.7 and 0.9 for indoor and outdoor, respectively, and (2) spatial-probability of reception-success at an indoor receiver location varied from 40,06 % to 81,85 %, approximately.

Co-Authors Abdul Kadir Achjar, Komang Ayu Henny Adhi Susanto Agus Bejo, Agus Agus Sri Lestari Aidin Najihi Ajib Setyo Arifin Alifia Fitri Utami Anggun Fitrian Isnawati Aswad, Nini H Bagus Made Sabda Nirmala Bimo Sunarfri Hantono Budi Setiyanto Budi Setiyanto Budi Setiyanto Budi Setiyanto Dewi, Ni Nyoman Astika Dewi, Ni Putu Diah Trisna Dewintasari, Ni Nyoman Paramitha Effan Najwaini Eliada Herwiyanti Fakhriy Hario P Fauza Khair Fitri Yuli Zulkifli Fitriah Fitriah Gama, I Ketut Gama, Ketut Gusti Ayu Harini, Gusti Ayu Harini, I Gusti Ayu Hasimkan Hasimkan, Hasimkan Henny Achjar, Komang Ayu I Gede Astawan I Ketut Suastika I Putu Gede Adiatmika I Wayan Candra I Wayan Suardana Iswandi Iswara, Ni Putu Ayu Astri Prana Kasih, Tota Pirdo Kumalasari, Ni Putu Putri M. B. Fathinah Hanun Masdiana Masdiana Maulana, Eka Mokhammad Nurkholis Abdillah Muhammad Sonnie Bestian Ngurah, I Gusti Ketut Gede Ngurah, IGK Gede Nini Hasriyani Aswad NLP Yunianti SC, NLP Yunianti Nur Azizah Padmi, Luh Sri Anggayoni Julia Paramita, Diah Pradnya Permana, Ody Tegar Permana, Ody Tegar Pramesti, Kadek Diah Purnama, Tedi R. A.T. Kuswardhani Risanuri Hidayat Sari, Eni Sevia Satriawati, Ni Nyoman Ayu Selo Sulistyo, Selo Sevia M Idrus Sholeh Hadi P Sigit Pambudi Sudiantara, I Ketut Sudiantara, Ketut sumirta, I Nengah Sunarno Sunarno Sunarno Sunarno Sunarno Susi Wendhaningsih Tahta Dwi Putra Umran Sarita, Umran Wardani, Duati Wardani, Duati Widyawan Wisnu Kartika

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