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All Journal International Journal of Electrical and Computer Engineering Jurnal Elementer (Elektro dan Mesin Terapan) Jambura Journal of Mathematics Budimas : Jurnal Pengabdian Masyarakat Proceeding Applied Business and Engineering Conference eProceedings of Engineering Sewagati Journal of Electronics Technology Exploration (JOeTEx)
Mohammad Yanuar Hariyawan
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Journal : International Journal of Electrical and Computer Engineering

 1 
The Effects of Spread-Spectrum Techniques in Mitigating Conducted EMI to LED Luminance Mohammad Yanuar Hariyawan; Risanuri Hidayat; Eka Firmansyah
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 3: June 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2596.887 KB) | DOI: 10.11591/ijece.v6i3.pp1332-1343

Abstract

Rapid voltage and current changes in recently ubiquitous LED driver have a potency to interfere other devices. Solutions with special converter design, component design, EMI filter, and spread-spectrum techniques have been proposed. Due to cost-size-weight constraints, spread-spectrum technique seems a potential candidate in alleviating EMI problem in LED application. In this paper, the effectiveness of conducted EMI suppression performance of the spread-spectrum technique is evaluated. Spread-spectrum techniques applied by giving disturbance to the system LED driver with 3 profile signals, filtered square, triangular, and sine disturbance signal to the switching pattern of a buck LED driver. From the test results, 472.5 kHz triangular and 525 kHz sine signal can reduce EMI about 42 dBuV whilethe filtered square signal can reduce EMI 40.70 dBuV compare with fundamental constantfrequency reference 669 kHz. The average reduction in the power level of the third signal inthe frequency range of 199 kHz to 925 kHz for 5.154281 dBuV and the filtered square signal can reduce the average power level better than other signal disturbance of 5.852618 dBuV.LED luminance decrease when the spread-spectrum technique is applied to the system about 2814 lux.
Comparison Analysis Of Recovery Mechanism At Mpls Network Mohammad Yanuar Hariyawan
International Journal of Electrical and Computer Engineering (IJECE) Vol 1, No 2: December 2011
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.273 KB)

Abstract

Multi-protocol Label Switching (MPLS) has become an attractive technology of choice for Internet backbone service providers.  MPLS features the ability to perform traffic engineering and provides support for Quality of Service traffic provisioning. To deliver reliable service, MPLS requires a set of procedures to provide protection for the traffic carried on Label Switched Paths (LSP). In this case Lable Switched Routers (LSRS) supports recovery mechanism when failure happened in the network.This paper studied about performance from usage of different techniques that can be used to reroute traffic faster then  the current IP rerouting methods in the case of a failure in a network. Local rerouting, fast reroute one to one backs up, Haskin, PSL oriented path protection and 1+1 path protection recovery mechanism was compared by given of aggregate traffic which has self-similarity character. Packet drop, rejection probability, recovery time, service disruption time and pre-reserved resources backup will be made as comparator parameter with various bitrate and different position of link failure. Packet loss, rejection probability, recovery time and service disruption time at five recovery mechanisms influenced by position of link failure to ingress. 1+1 path protection mechanism has least packet drop, but costliest way to do recovery in the case of usage resources, as traffic is sent simultaneously in two paths which disjoint. Fast reroute one to one backup is quickest way to operate protection switching recovery after 1+1 path protection mechanism. Keywords: MPLS, recovery, rerouting, self-similar traffic, protection switchingDOI:http://dx.doi.org/10.11591/ijece.v1i2.84
Co-Authors Achmad Jauhari, Achmad Ahmad Maulana, Firman Alamsyah, Gempar Amsyari Rustam, Faiz Anang Budikarso, Anang Arifin Aser Elegius Logo, Royzaldo Aufar Zikri Aulia Rahma Annisa Aulia Rahma Annisa Bain Khusnul Khotimah Briantoro, Hendi Cahyana, Amelia Devie Rosa Anamisa Diemas Ibnus Pasedja Eka Firmansyah Eka Sari Oktarina Fally Ahmad Fannush Shofi Akbar Fifin Ayu Mufarroha Firli Irhamni Firmansyah, Muhammad Rizal Ginardi, R.V. Hari Haris Efendi Hendy Briantoro indrawanti, annisaa sri Kusuma, Zulfa Hafizh Luqmanulhakim, Naufan Zaki Maulana, Risyad Mohammad, Iki Adfi Nur Muchammad Husni Noptin Harpawi Noptin Harpawi Noptin Harpawi Harpawi Nuraini, Dinah Oddy Rifandi Pangestu Widodo, Pangestu Raywanda Affandi Harahap Riezkha Salsabilla Risanuri Hidayat Rizadi Sasmita Darwis Rizadi Sasmita Darwis Rizka Wakhidatus Sholikah, Rizka Wakhidatus Sabilla, Irzal Ahmad Santosa, Hafis Akmaldi Siska Novita Posma Siska Novita Posma Suci Ramadona Susijanto Tri Rasmana Syafa, Ilhan Ahmad Trifandi Wibowo Violina, Dina Wahyudi Nasrianza Wicaksono, M. Januar Eko Wicaksono, Rahmad Aji Wijaya, Agas Ananta Wira Indani Wisnu Wibowo, Raynaldi Yoedy Moegiharto, Yoedy Yospet Pradika Zakariya, Naufal