Bulletin of Electrical Engineering and Informatics
Bulletin of Electrical Engineering and Informatics ISSN: 2302-9285 is open to submission from scholars and experts in the wide areas of electrical, electronics, instrumentation, control, telecommunication, computer engineering, computer science, information technology and informatics from the global world. The journal publishes original papers in the field of electrical (power), electronics, instrumentation & control, telecommunication and computer engineering; computer science; information technology and informatics. Authors must strictly follow the guide for authors. Please read these instructions carefully and follow them strictly. In this way you will help ensure that the review and publication of your paper is as efficient and quick as possible. The editors reserve the right to reject manuscripts that are not in accordance with these instructions.
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539 Documents
<![CDATA[Sub Carrier Analysis for QAM Modulation ]]>
<![CDATA[S. Shanmugasundaram]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 6, No 4: December 2017 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v6i4.866
<![CDATA[Orthogonal Frequency Division Multiplexing (OFDM) based wireless data transmission system is a multi-carrier system in which single higher rate data stream can be divided into multiple lower rate data streams. Modulation and De-Modulation technique play a major role in OFDM based data transmission system. Based on Modulation technique only, the frequency transformation method and encoding and decoding methods are enabled. Effective modulation techniques called as “Quadrature Amplitude Modulation (QAM)” modulation are used to design an OFDM System. Carrier signal is one of the important signals used to modulate the original signal. Analyzing the sub-carrier signal for getting the quality of the modulated signal.]]>
<![CDATA[System on Chip Based RTC in Power Electronics ]]>
<![CDATA[R. Dorothy]]>;
<![CDATA[Sasilatha T.]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 6, No 4: December 2017 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v6i4.867
<![CDATA[Current control systems and emulation systems (Hardware-in-the-Loop, HIL or Processor-in-the-Loop, PIL) for high-end power-electronic applications often consist of numerous components and interlinking busses: a micro controller for communication and high level control, a DSP for real-time control, an FPGA section for fast parallel actions and data acquisition, multiport RAM structures or bus systems as interconnecting structure. System-on-Chip (SoC) combines many of these functions on a single die. This gives the advantage of space reduction combined with cost reduction and very fast internal communication. Such systems become very relevant for research and also for industrial applications. The SoC used here as an example combines a Dual-Core ARM 9 hard processor system (HPS) and an FPGA, including fast interlinks between these components. SoC systems require careful software and firmware concepts to provide real-time control and emulation capability. This paper demonstrates an optimal way to use the resources of the SoC and discusses challenges caused by the internal structure of SoC. The key idea is to use asymmetric multiprocessing: One core uses a bare-metal operating system for hard real time. The other core runs a “real-time” Linux for service functions and communication. The FPGA is used for flexible process-oriented interfaces (A/D, D/A, switching signals), quasi-hard-wired protection and the precise timing of the real-time control cycle. This way of implementation is generally known and sometimes even suggested–but to the knowledge of the author’s seldomly implemented and documented in the context of demanding real-time control or emulation. The paper details the way of implementation, including process interfaces, and discusses the advantages and disadvantages of the chosen concept. Measurement results demonstrate the properties of the solution.]]>
<![CDATA[Vehicle-2-Vehicle Communication Based on Wireless Sensor Network ]]>
<![CDATA[S. Sinthuja]]>;
<![CDATA[S. V. Saravanan]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 6, No 4: December 2017 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v6i4.868
<![CDATA[Truck Platooning is a car innovation that permits gathering various trucks into a single element where one truck intently takes after the other that outcomes in an expanded street limit. This kind of detachment allows to a significant degree tight separations and synchronous driving between the vehicles. Our point is to plan and exhibit a self-ruling truck platooning framework given vehicle-to-vehicle (V2V) correspondence innovation. The structure utilises IEEE 802.15.4 remote convention joined with separation going sensors to enable vehicles inside the company to safely trade data progressively and naturally break and quicken in light of the lead truck. The rapid of remote correspondence permits to a significant degree tight separations and synchronous driving between the platooning vehicles.]]>
<![CDATA[Wireless Network For Strategic Boundary Supervision System ]]>
<![CDATA[Anu Priya]]>;
<![CDATA[Sasilatha T.]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 6, No 4: December 2017 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v6i4.869
<![CDATA[The major trouble with national security is "Terrorism" happening in borders. In border areas, regular forces or even satellites cannot monitor accurately intruding. The wireless sensor network scheme gives a possible way to explain this issue. To outline a wireless remote system of estimated sensor motes that contains various installed sensors and a processor to detect and impart an adversary interruption crosswise over a border and war zones. The idea is to distribute many smartdust motes inside an enormous geological region. Every one of these motes shapes a remote system, and one of them will go about as the system organiser that can control the whole system and furthermore goes about as a passage to the outside world. The preferred standpoint with these little motes is that it can be conveyed in a couple of hours by a pair of men or even dropped from an airborne helicopter. Every mote comprises of an assortment of sensors to distinguish every single potential type of interruption.]]>
<![CDATA[Noise and Bandwidth Consideration in Designing Op-Amp Based Transimpedance Amplifier for VLC ]]>
<![CDATA[Trio Adiono]]>;
<![CDATA[Rachmad Vidya Wicaksana Putra]]>;
<![CDATA[Syifaul Fuada]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 7, No 2: June 2018 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v7i2.870
<![CDATA[In a visible light communication (VLC) system, there are many modules involved. One of the important modules is Transimpedance Amplifier (TIA) that resides in the analog front-end receiver (Rx-AFE). TIA is responsible for performing signal conversion from current signal, which is provided from the photodiode (PD) to voltage signal. It is the reason why the TIA should be operating in low noise condition and wide bandwidth of frequency. These will enable a flexible coverage of the VLC system in performing its signal processing. Hence, in this research, we provide considerations of the noise and frequency bandwidth analysis in designing TIA to cope with the required design specification of a VLC system.]]>
<![CDATA[WiFi-Friendly Building to Enable WiFi Signal Indoor ]]>
<![CDATA[Suherman Suherman]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 7, No 2: June 2018 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v7i2.871
<![CDATA[The 802.11 networks (wireless fidelity (WiFi) networks) have been the main wireless internet access infrastructure within houses and buildings. Besides access point placement, building architectures contribute to the WiFi signal spreading. Even dough WiFi installation in buildings becomes prevalent; the building architectures still do not take WiFi-friendliness into considerations. Current research on building and WiFi are on access point location, location based service and home automation. In fact, the more friendly the building to WiFi signal, the more efficient the 802.11 based wireless infrastructure. This paper introduces the term of WiFi-friendly building by considering signal propagations, the obstacle impact, as well as proposing an ornament-attaced reflector and a hole-in-the-wall structure to improve WiFi signal distribution. Experiment results show that obstacle materials made of concrete reducing WiFi signal the most, followed by metal and wood. Reflecting materials are able to improve the received signal level, for instance, the implemented ornament-attached reflector is able improving the received signal up to 6.56 dBm. Further, the hole-in-the-wall structure is successfully increasing WiFi signal up to 2.3 dBm.]]>
<![CDATA[A Comparative Study on Optical Characteristics of InGaAsP QW Heterostructures of Type-I and Type-II Band Alignments ]]>
<![CDATA[Garima Bhardwaj]]>;
<![CDATA[Sandhya K.]]>;
<![CDATA[Richa Dolia]]>;
<![CDATA[M. Abu-Samak]]>;
<![CDATA[Shalendra Kumar]]>;
<![CDATA[P. A. Alvi]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 7, No 1: March 2018 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v7i1.872
<![CDATA[In this paper, we have configured InGaAsP QW (quantum well) heterostructures of type-I and type-II band alignments and simulated their optical characteristics by solving 6 x 6 Kohn-Luttinger Hamiltonian Matrix. According to the simulation results, the InGaAsP QW heterostructure of type-I band alignment has been found to show peak optical gain (TE mode) of the order of~3600/cm at the transition wavelength~1.40 µm; while of type-II band alignment has achieved the peak gain (TE mode) of the order of~7800/cm at the wavelength of~1.85 µm (eye safe region). Thus, both of the heterostructures can be utilized in designing of opto-or photonic devices for the emission of radiations in NIR (near infrared region) but form the high gain point of view, the InGaAsP of type-II band alignment can be more preferred.]]>
<![CDATA[Quantitative Evaluation for PMPIv6 Multicast Fast Reroute Operations ]]>
<![CDATA[Aisha-Hassan A. Hashim]]>;
<![CDATA[Azana Hafizah Mohd Aman]]>;
<![CDATA[Huda Adibah Mohd Ramli]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 6, No 4: December 2017 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v6i4.875
<![CDATA[This paper evaluates Proxy Mobile Internet Protocol Version 6 (PMIPv6) multicast fast reroute operations using quantitative analysis. The motivation is to cater the fast growth of mobile data traffic consumption and its networking technologies. Hence it is significance to enhancing the present techniques. Multicast enabled PMIPv6 is a mobile multicast networking management protocol that is highly acceptable in handling mobile data traffic. This paper briefly highlights the methodology, architecture and processes involved to produce the quatitative equations for each parameter. The quantitative parameters discussed are packet loss cost and handover latency.]]>
<![CDATA[The Effects of Nitrogen and Oxygen Atmosphere on the Photoconductivity of Trimethyl Phenyl Diamine Thin Films ]]>
<![CDATA[Nazrul Anuar Nayan]]>;
<![CDATA[Khairul Anuar A. Rahman]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 7, No 2: June 2018 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v7i2.950
<![CDATA[Organic materials were previously used as insulators in electrical technology. These materials, however, are currently used as conductors once their photoconductivity is confirmed and studied. From the literature, it has shown that the photoconductivity of trimethyl phenyl diamine (TPD) increases in the air and decreased in the atmosphere of the vacuum. To the best of our knowledge, there is no detailed study of the effects of gas in the air that affect TPD photoconductivity. In this study we investigate the effects of nitrogen (N2) and oxygen (O2) gases on photoconductivity, degradation and residual decay of photoconductivity for thin film TPD. The results of the study show that in the atmosphere of O2, TPD produces about seven times higher photoconductivity compared to N2 conditions. It also shows that, N2 and O2 provide more effective response time during photoconductivity residual decay. Photoconductivity degradation occurs in all conditions and its recovery takes more than 65 hours.]]>
<![CDATA[Detecting and Shadows in the HSV Color Space Using Dynamic Thresholds ]]>
<![CDATA[Boutaina Hdioud]]>;
<![CDATA[Mohammed El Haj Tirari]]>;
<![CDATA[Rachid Oulad Haj Thami]]>;
<![CDATA[Rdouan Faizi]]>
<![CDATA[ Bulletin of Electrical Engineering and Informatics Vol 7, No 1: March 2018 ]]>
Publisher : <![CDATA[Institute of Advanced Engineering and Science ]]>
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DOI: 10.11591/eei.v7i1.893
<![CDATA[The detection of moving objects in a video sequence is an essential step in almost all the systems of vision by computer. However, because of the dynamic change in natural scenes, the detection of movement becomes a more difficult task. In this work, we propose a new method for the detection moving objects that is robust to shadows, noise and illumination changes. For this purpose, the detection phase of the proposed method is an adaptation of the MOG approach where the foreground is extracted by considering the HSV color space. To allow the method not to take shadows into consideration during the detection process, we developed a new shade removal technique based on a dynamic thresholding of detected pixels of the foreground. The calculation model of the threshold is established by two statistical analysis tools that take into account the degree of the shadow in the scene and the robustness to noise. Experiments undertaken on a set of video sequences showed that the method put forward provides better results compared to existing methods that are limited to using static thresholds.]]>
