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27,404 Article Results

Implementation of Low Power Pipelined 64-bit RISC Processor with Unbiased FPU on CPLD

10.11591/ijres.v5.i2.pp115-120
J. Vijay Kumar , B. Naga Raju , M. Vasu Babu , T. Ramanjappa
This article represents the implementation of low power pipelined 64-bit RISC processor on Altera MAXV CPLD device.  The design is verified for arithmetic operations of both fixed and floating point numbers, branch and logical function of RISC processor. For all the jump instruction, the processor architecture will automatically flush the data in the pipeline, so as to avoid any misbehavior. This processor contains FPU unit, which supports double precision IEEE-754 format operations very accurately. The simulation results have been verified by using ModelSim software. The ALU operations and double precision floating point arithmetic operation results are displayed on 7-Segments. The necessary code is written in Verilog HDL.
Volume: 5
Issue: 2
Page: 115-120
Publish at: 2016-07-01

VLSI Design and Comparison of DA and LMS Based Reconfigurable FIR Filter

10.11591/ijres.v5.i2.pp121-126
P. Hemanthkumar , Y. Sai Kiran , V. Nava Teja
Here, we exhibit the design optimization of one- and two-dimensional fully-pipelined computing structures for area-delay-power-efficient implementation of finite impulse response (FIR) filter by systolic decomposition of distributed arithmetic (DA)-based inner-product computation. This plan is found to offer a flexible choice of the address length of the look-up-tables (LUT) for DA-based computation to determine suitable area-time trade-off. It is seen that by using smaller address-lengths for DA-based computing units, it is possible to decrease the memory-size but on the other side that leads to increase of adder complexity and the latency. For efficient DA-based realization of FIR filters of different orders, the flexible linear systolic design is implemented on a Xilinx Virtex-E XCV2000E FPGA using a hybrid combination of Handel-C and parameterizable VHDL cores. Various key performance metrics such as number of slices, maximum usable frequency, dynamic power consumption, energy density and energy throughput are estimated for different filter orders and address-lengths. Obtained results on analysis shows that performance metrics of the proposed implementation is broadly in line with theoretical expectations. We have seen that the choice of address-length M=4 gives the best of area-delay power-efficient realizations of the FIR filter for different filter orders. Moreover, the proposed FPGA implementation is found to involve significantly less area-delay complexity compared with the existing DA-based implementations of FIR filter.
Volume: 5
Issue: 2
Page: 121-126
Publish at: 2016-07-01

Variable Speed Control Using Fuzzy-PID Controller for Two-phase Hybrid Stepping Motor in Robotic Grinding

10.11591/ijeecs.v3.i1.pp102-118
Adnan Jabbar Attiya , Salam Waley Shneen , Basma Abdullah Abbas , Yang Wenyu
In a robotic grinding process, a light-weight grinder is held by an intelligible robot arm. Material removal is carried out by the rotating grinding tool while the end effector of robot guarantees that the tool follows a programmed path in order to work on complex curved surfaces. Grinding tool is driven by Two-Phase Hybrid Stepping motor derive. This work aims to develop a controller based on fuzzy logic to improve the speed control performance of Two-Phase Hybrid Stepping motor derive in order to achieve a controller that provides grinding with higher quality. The analysis and design of PID-Fuzzy controller to improve the response of the motor speed were studied. This paper simulates six motor speed input conditions. The simullink package of the MATLAB. Comparison between the conventional PID controller and Fuzzy-PID output was done on the basis of the simulation result obtained by MATLAB. The simulation results demonstrate that the designed Fuzzy-PID controller realize a good dynamic behavior of the Two-Phase Hybrid Stepping motor, a perfect speed tracking with less rise and settling time, minimum overshoot, minimum steady state error and give better performance compared to conventional PID controller.
Volume: 3
Issue: 1
Page: 102-118
Publish at: 2016-07-01

Study on Characteristics of SAR Data in Ravine Reservoir Area

10.11591/ijeecs.v3.i1.pp215-225
Mowen Xie , Jiaxuan Huang , Jiehui Huang
Landslide monitoring is one of the most important methods in landslide prevention. Landslide early identifying that based on D-InSAR technique is one of the effective means in landslide monitoring in ravine reservoir area. On the basis of D-InSAR technique analysis in ravine reservoir, how to eliminate the error and find the real moving area caused by rock and soil is the key problem. Considering the fact, an experiment region in reservoir of Wudongde hydropower station, Jinsha River has been studied. Based on D-InSAR analysis method and the characteristics of radar data, an analysis method of the SAR data trusted zone, the detectable landsliding displacement and error estimation has been established, extracting the effective range in the result of SAR data analysis.
Volume: 3
Issue: 1
Page: 215-225
Publish at: 2016-07-01

A New Structure for Sen Transformer Using Three Winding Linear Transformer

10.11591/ijpeds.v7.i2.pp440-449
Chia Lailypour , Murteza Farsadi
In this paper a new structure for "Sen" transformer is introduced, by using three winding transformers with neutral point in order to use negative value of compensating voltage. Combination of taps will be adjusted by a novel algorithm, to control the required active and reactive powers, separately. This paper tries to focus on three parts. First of all there is an introduction on the concept of ST structure what comes next is a try to work on power flow control by using PI controllers and an algorithm to find the best and efficient combination of taps, finally proposed idea and algorithm will be implement on a practical system. Implementation of the system consist of two separated and related parts. The first one is about transmission line and Sen Transformer and the interaction between them. The second part is programing codes that adjust taps for required active and reactive powers.
Volume: 7
Issue: 2
Page: 440-449
Publish at: 2016-06-06

An Algorithm for Continuous Optimization Problems using Hybrid Particle Updating Method

10.11591/ijeecs.v3.i1.pp164-173
Peter Bamidele Shola , L B Asaju
Optimization problem is one such problem commonly encountered in many area of endeavor, obviously due to the need to economize the use of the available resources in many problems. This paper presents a population-based meta-heuristic algorithm   for solving optimization problems in a continous space. The algorithm, combines a form of cross-over technique with a position updating formula based on the instantaneous global best position to update each particle position .The algorithm was tested and compared with the standard particle swarm optimization (PSO)  on many benchmark functions. The result suggests a better performance of the algorithm over the later in terms of reaching (attaining) the global optimum value (at least for those benchmark functions considered) and the rate of convergence in terms of the number of iterations required reaching the optimum values.
Volume: 3
Issue: 1
Page: 164-173
Publish at: 2016-06-04

Path Loss Models Optimization for Mobile Communication in Different Areas

10.11591/ijeecs.v3.i1.pp126-135
Messaoud Gareh , Lotfi Djouane , Houcine Oudira , Nazih Hamdiken
In mobile radio systems, path loss models are necessary for proper planning, interference estimations, frequencies assignments and cell parameters which are basic for network planning process. Empirical models are the most adjustable models that can be suited to different types of environments. In this paper, data collected in Batna, Algeria is used to calculate the path loss for GSM (908-957 MHz). The measured path loss is compared with theoretical path loss estimated by the most widely empirical models «Cost123»,  «Hata», «SUI» and «Egli». The best model to estimate the measured path loss is optimized using genetic algorithm to predict path loss for suburban and rural area. The RMSE and the other test criteria between the actual and predicted data are calculated for various path loss models. It turned out that the adjusted COST 231 model outperforms the other studied models. The investigated results can help telecommunication engineers improve their planning and design of microcellular system.
Volume: 3
Issue: 1
Page: 126-135
Publish at: 2016-06-04

Technology Map: A Text Mining and Network Analysis Approach

10.11591/ijeecs.v3.i1.pp200-208
Arif Rakhman Hakim , Taufik Djatna , Ade Febransyah
Information of technology development is indispensable for research planning. This information is needed by researcher to determine research topics which he will contribute. For journal editor, this information is needed to evaluate research paper draft. Unfortunately, technology development is unable to be measured directly. To measure the development, several methods have been developed using patent and journal as its data. In this work we focused on development of technology map and its measurement in a method to provide information of technology development from Indonesian research journals using text mining and network analysis. The map helps stakeholders to plan their researches. Using journal data from agro-industrial technology, the method is able to identify relation between researches, thus we can develop the time line of the research area. The method can also cluster the researches into nineteen research areas and measure its popularity, importance, affinity to particular group, research type whether breakthrough or incremental, research group retention time, and its saturation.
Volume: 3
Issue: 1
Page: 200-208
Publish at: 2016-06-04

Cyber informatics and Contrasting Extreme Programming with Boolean Logic

10.11591/ijeecs.v3.i1.pp157-163
Erick Fernando , Derist Touriano
Cyber information is the solution for e-commerce, in this study we investigated the LAN is needed and seek confirmation of the decision to use the method Red-Black Tree in forming binary search tree. Given the status of the wireless modalities and development of RAID, this study used a Bayesian tool in controlling identifier-locator split (palmate). In addition, to verify that Boolean logic and the model checking can collude to address this problem. In this paper, we verify that rasterization can be made strong, cooperative, and adaptive. Furthermore, we concentrated this study can be made so that IPv6 embedded, scalable, and highly-available. Our design for investigating encrypted algorithms is dubiously promising. Finally, we introduced an analysis of journaling file systems (Palmate), which we used to validate that local-area networks and replication are often incompatible.
Volume: 3
Issue: 1
Page: 157-163
Publish at: 2016-06-04

Helmet Charger Based Solar Power: A Review of Business Prospect

10.11591/ijeecs.v3.i1.pp17-25
Syifaul Fuada
Solar power based helmet charger is a product developed by the author and his team that was funded twice by the Ministry of Research and Technology of Higher Education in 2013 and 2014 for ‘Karsa Cipta’ (creative plan) program and ‘Kewirausahaan’ (enterpreneurship) program, respectively. This product has participated in several scientific agendas such as conferences or contests from 2013 to 2015, and is processing the proposal for patent with several claims distinguishing it from other similar innovations. This paper is contained with invention profile and achievement of qualification fulfillment of a superior innovation as well as several considerations of technopreneurship based opportunities or business prospects as a follow up research and development.
Volume: 3
Issue: 1
Page: 17-25
Publish at: 2016-06-04

Investigating the Ethernet and Boolean Logic

10.11591/ijeecs.v3.i1.pp194-199
Hetty Rohayani , Erick Fernando , Derist Touriano
Write-ahead logging to work. After years of research that are typical in Moore's Law, validate multi-processor investigation, which embodies the principles of intuitive machine learning. Our focus in this paper is not on whether a symmetric encryption can be made metamorphic, probabilistic, adaptive, efficient wearable, and interposable, but rather the introduction of new wireless communication (SCHAH). The properties SCHAH highly dependent on the assumptions inherent in our framework; in this section, we consider the methodology which consists of n access point. Implementation of our applications are replicated, symbiosis, and with large scale yangmemiliki full control over homegrown database, as may be necessary in order to control and access points are not compatible. A collection of shell scripts contains about 85 x86 assembly instructions. Where the engine and is fully compliant courseware follows the sensor network evaluation, although SCHAH not able to give a lot of kernel at a time. 
Volume: 3
Issue: 1
Page: 194-199
Publish at: 2016-06-04

Information Required for Estimating The Indicator of Forest Reclamation Success in Ex Coal-Mining Area

10.11591/ijeecs.v3.i1.pp182-193
Hasriani Muis , I Nengah Surati Jaya , Muhammad Buce Saleh , Kukuh Murtilakono
This paper describes how the information of the key indicators for assessing the degree of forest reclamation success in ex coal-mining area was identified. Those indicators were analyzed using the descriptive statistic as well as the discriminant analysis on the basis of biophysical data representing age class of vegetation after reclamation. The main objective of the study was to find out the predominant key indicator that determines the success of forest reclamation in ex coal-mining areas. This study found that the variance of basal area, green biomass and increment was relatively high between young plantation and old plantation. The study confirmed that the variation of the success of reclamation was strongly influenced by site quality. . The study concluded that the best indicators to be used for assessing the success of forest reclamation was the increment providing accuracy more than 79.6% either for indicator five or three classes.
Volume: 3
Issue: 1
Page: 182-193
Publish at: 2016-06-04

Multi Dimension of Coarse to Fine Search Method Development for Solving Economic Dispatch

10.11591/ijeecs.v3.i1.pp1-9
Jangkung Raharjo , Adi Soeprijanto , Hermagasantos Zein
Economic dispatch problem has grown along with the development of electric power business, for example in a competitive electric power business that offers electrical energy in the form of the step function, non-differentiable function. This is not a continuous function so there is no guarantee that those methods can execute the optimization problem well, especially the Lagrange and Direct methods. There are the non-differentiable functions within the optimization will become a challenge that should be solved. This paper proposes Coarse to Fine Search method development to solve the problem. The Coarse to Fine Search is able to work for differentiable or non-differentiable functions, but is only limited maximum three dimensions. The development is done to multi dimension so that it can solve the economic dispatch problem. We named it Multi Dimension of Coarse to Fine Search. The simulation results of eight power plants show the developed method can work well, it is always convergent and fast with the execution time of 2.63 - 38.30 seconds for 25 - 200 population and 50 - 200 delta search.
Volume: 3
Issue: 1
Page: 1-9
Publish at: 2016-06-04

A Novel High Gain SEPIC Converter with the Tapped Inductor Model Operating in Discontinuous Conduction Mode for Power Factor Correction

10.11591/ijpeds.v7.i2.pp450-459
Sathiyamoorthy S , Gopinath M
Power Factor Correction (PFC) has become one of the most active research areas in the field of power electronics due to the surplus power required for various industrial applications around the world. In this work, a novel SEPIC converter with the Tapped Inductor model operating in Discontinuous Conduction Mode (TI-SEPIC- DCM) is proposed for PFC. The proposed TI-SEPIC-DCM improves the voltage gain through voltage multiplier cell and charge pump circuit. The voltage multiplier cell also helps in attaining the Zero-Voltage Switching (ZVS) and Zero-Current Switching (ZCS), which results in higher switching frequency and size reduction. Moreover, a third order harmonic reduction control loop has been proposed for better harmonic mitigation. The proposed work has been simulated in MATLAB and the results are obtained to validate the significance of the proposed TI-SEPIC- DCM with near unity power factor and reduced harmonics.
Volume: 7
Issue: 2
Page: 450-459
Publish at: 2016-06-01

Review of Software Fault-Tolerance Methods for Reliability Enhancement of Real-Time Software Systems

10.11591/ijece.v6i3.pp1031-1037
Anjushi Verma , Ankur Ghartaan , Tirthankar Gayen
Real time systems are those systems which must guarantee to response correctly within strict time constraint or within deadline. Failures can arise from both functional errors as well as timing bugs. Hence, it is necessary to provide temporal correctness of programs used in real time applications in addition to providing functional correctness. Although, there are several researches concerned with achieving fault tolerance in the presence of various functional and operational errors but many of them did not address the problem concerned with the timing bugs which is an important issue in real time systems. As for real time systems, many times it becomes a necessity for a given service to be delivered within the specified time deadline. Therefore, this paper reviews the existing approaches from the perspective of  real time systems to analyse the shortcomings of these approaches to  present a versatile and cost effective approach in the presence of timing bugs for providing fault tolerance to enhance the reliability of the real time software applications.
Volume: 6
Issue: 3
Page: 1031-1037
Publish at: 2016-06-01
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