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28,593 Article Results

Wireless Indoor Localization Systems and Techniques: Survey and Comparative Study

10.11591/ijeecs.v3.i2.pp392-409
Ahmed Azeez Khudhair , Saba Qasim Jabbar , Mohammed Qasim Sulttan , Desheng Wang
The popularity, great influence and huge importance made wireless indoor localization has a unique touch, as well its wide successful on positioning and tracking systems for both human and assists also contributing to take the lead from outdoor systems in the scope of the recent research works. In this work, we will attempt to provide a survey of the existing indoor positioning solutions and attempt to classify different its techniques and systems. Five typical location predication approaches (triangulation, fingerprinting, proximity, vision analysis and trilateration) are considered here in order to analysis and provide the reader a review of the recent advances in wireless indoor localization techniques and systems to have a good understanding of state of the art technologies and motivate new research efforts in this promising direction. For these reasons, existing wireless localization position systems and location estimation schemes are reviewed. We also made a comparison among the related techniques and systems along with conclusions and future trends to identify some possible areas of enhancements. 
Volume: 3
Issue: 2
Page: 392-409
Publish at: 2016-08-01

Performance Measurement ERP System Module Purchase and Sale Cooperation on Consumption in Tangerang District

10.11591/ijict.v5i2.pp60-67
Hendra Alianto
ERP system is an integrated information system to support the core business activities of an organization, helping the business unit related to data and information sharing, cost reduction, and improvement of business processes, which will have an impact on the increase in the work to become more efficient and effective. Organizations that implement ERP system can take the form of cooperative consumption. Purpose cooperative consumption implement an ERP system is to achieve improved productivity and operational effectiveness of the cooperative. Standard Operating Procedures can help the user can use the ERP system, but required knowledge management. This rapid business development prosecute organizations innovate to maintain and grow the business. One such effort is the one measuring the performance achieved are supported by the implementation of the Knowledge Management. In this information age, where information must be obtained relatively quickly, accurately and easily without being limited by space, time, location.The important thing is how to measure the performance of the ERP system once implemented. Performance measurement module ERP system purchases and sales on consumer cooperatives, will give inputandan innovation for consumer cooperatives in developing the organization towards a more structured, competitive and advanced, and improve decision making, increase the efficiency of operations and business processes.Keywords:  ERP Systems, Knowledge Management, Purchase and Sales Modules
Volume: 5
Issue: 2
Page: 60-67
Publish at: 2016-08-01

An Image Processing Method to Convert RGB Image into Binary

10.11591/ijeecs.v3.i2.pp377-382
Ratri Dwi Atmaja , Muhammad Ary Murti , Junartho Halomoan , Fiky Yosef Suratman
It is important in image processing to extract objects from their background into binary image. Binary image is used as input to feature extraction process and have an important role in generating unique feature to distinguish several classes in pattern recognition. This paper propose an image processing algorithm to obtain a binary image from RGB. The results showed that the binary image of the proposed algorithm contained the desired object.
Volume: 3
Issue: 2
Page: 377-382
Publish at: 2016-08-01

A Novel Technique of Power Flow Control in Transmission Lines Using Interline Power Flow Control

10.11591/ijeecs.v3.i2.pp296-304
Pankaj Aswal , Suyash Kumar Singh , Apurv Thakur , Kshitij Gaur
The interline power flow control (IPFC) is the flexible AC transmission system controller (FACTS) came into accountability to control the flow of power in multiple line transmission system. The following paper demonstrates the IPFC modelling using Matlab Simulink. Power flow calculations has been made using Gauss-Seidel Method. Optimization of power in terms of real and reactive power flow is achieved by comparing the actual calculated term and the predicted value.
Volume: 3
Issue: 2
Page: 296-304
Publish at: 2016-08-01

VLSI Architectures for Lifting Based Discrete Wavelet Transform – A Survey

10.11591/ijeecs.v3.i2.pp323-330
M. Kalaiarasi , T. Vigneswaran
Image compression is a key technology in the development of various multimedia and communication applications. Perfect reconstruction of the image without any loss in picture quality and data is very important. This can be achieved with the Discrete Wavelet Transform (DWT), which is an efficient tool for image compression and video compression. The lifting based DWT architecture has the advantage of lower computational complexities and also requires less memory compared to the conventional convolution method. The existing DWT architectures are represented in terms of folded, flipping and recursive structures. The various architectures are discussed in terms of memory, power consumption and operating frequency involved with the given size of image and required levels of decomposition. This paper presents a survey of these architectures for 2-dimensional and 3-dimensional Discrete Wavelet Transform. This study is useful for deriving an efficient method for improving the speed and hardware complexities of existing architectures.
Volume: 3
Issue: 2
Page: 323-330
Publish at: 2016-08-01

Study of stabilty analysis of a grid connected Doubly fed induction generator based on wind energy Application

10.11591/ijeecs.v3.i2.pp305-313
Ghulam sarwar Kaloi , Jie Wang , Mazhar H Baloch
      The present paper formulates the state space modeling of doubly fed induction generator (DFIG) based wind turbine system for the purpose of the stability analysis. The objective of this study is to discuss the various modes of operation of the DFIG system under different operating conditions such as voltage sags with reference to variable wind speed and grid connection. The proposed control methodology exploits the potential of the DFIG scheme to avoid that grid voltage unbalances compromise the machine operation, and to compensate voltage unbalances at the point of common coupling (PCC), preventing adverse effects on loads connected next to the PCC. This methodology uses the rotor side converter (RSC) to control the stator current injected through the machine and the GSC to control the stator voltage to minimize the electromagnetic torque oscillations. Extensive simulation results on a 2MW DFIG wind turbine system illustrate the enhanced system performance and verify the effectiveness of the controller.
Volume: 3
Issue: 2
Page: 305-313
Publish at: 2016-08-01

Optimal Tuning and Placement of Power System Stabilizers Based Eigenvalue

10.11591/ijeecs.v3.i2.pp273-281
Lawrence Bibaya , Chongru Liu
In this paper, an eigenvalue assignment based Particle Swarm Optimization and Participation Factor for Optimal tuning and placement of power system stabilizers is proposed. The proposed approach presents a two-step methodology to find optimal location and parameters of PSS. The Participation Factor method is computed using the modal analysis toolbox from DIgSILENT, and used to determine the power system stabilizers optimal location. A Particle Swarm Optimization algorithm is written in MATLAB to search the power system stabilizers optimal parameters. Two eigenvalue-based objective functions to ensure a maximum damping of the inter-area modes as well as of the local modes by assigning them in a robust stability area are considered. The performance of the proposed approach is tested and examined on the four-machine two-area power system. Linear modal analysis and non-linear time domain simulations show the robustness of the proposed approach.
Volume: 3
Issue: 2
Page: 273-281
Publish at: 2016-08-01

TreeNet Analysis of Human Stress Behavior using Socio-Mobile Data

10.11591/ijeecs.v3.i2.pp446-452
B Padmaja , V V Rama Prasad , K V N Sunitha
Human behavior is essentially social and humans start their daily routines by interacting with others. There are many forms of social interactions and we have used mobile phone based social interaction features and social surveys for finding human stress behavior. For this, we gathered mobile phone call logs data set containing 111444 voice calls of 131 adult members of a living community for a period of more than 5 months. And we identified that top 5 social network measures like hierarchy, density, farness, reachability and eigenvector of individuals have profound influence on individuals stress levels in a social network. If an ego lies in the shortest path of all other alters then the ego receives more information and hence is more stressed. In this paper, we have used TreeNet machine learning algorithm for its speed and immune to outliers. We have tested our results with another Random Forest classifier as well and yet, we found TreeNet to be more efficient. This research can be of vital importance to economists, professionals, analysts, and policy makers.
Volume: 3
Issue: 2
Page: 446-452
Publish at: 2016-08-01

Testing MANET Protocol using Zigbee based Xbee Modules

10.11591/ijeecs.v3.i2.pp441-445
S. Sundar , Piyush Arora , Sarthak Agrawal , R. Kumar , Harish M. Kittur
In the last few years,there has been big interest in adhoc wireless network as they have tremendous military and commercial potential[1].Traditionally to test various parameters in the MANET , the most popular approach is to use mobile phone and Laptops and use the popular WIFI based protocol . But in the recent years there is a huge attraction towards the Internet Of things and specifically wireless sensor network. In this paper we are going to test the MANET protocol using zigbee based XBee modules specifally to determine the Range and Throughput of the Xbee netowork using XCTU Software . The sensor network will be deployed in the car parking application to see the parameters in the real time and dynamically see the sustainability of the network .The network is being designed keeping in mind that the nodes are mobile and at the same time the network does not require a standard infrastructure.
Volume: 3
Issue: 2
Page: 441-445
Publish at: 2016-08-01

Monitoring Biosensors and Obtaining Data Using GSM Module

10.11591/ijict.v5i2.pp86-88
Hemavathy RM
The main focus of the project is to prevent the loss of human life against the discomfort and death caused by the lack of attention towards the patients due to the improper monitoring systems provided in the hospital. The aim of the project is to monitor the bio sensors attached to the persons in their body either internally or externally. The biosensors which are about to be used in this project are EEG sensor (electro encephalogram sensor). An ECG sensor (electro cardiogram sensor) which is very essential for a critical patient, this project also emphasizes on the extended design of a special type of sensor called the oxygen insensitive microscale biosensor which helps in the monitoring of constant oxygen supply in blood thereby detecting blood cancer at the earliest stage. The data from all the sensors are sent to a central wireless node through wifi. From the main node the data is sent to the control station of the hospital through zigbee as the coverage area of certain hospitals is more than the coverage area of a Bluetooth. The control station segregates the data of different patients and stores in the memory location. If any of the patient data exceeds the standard data fed to the control station by the doctor then a message will be sent to the mobile of the attendee and the doctor using the GSM control system.Keywords: Biosensors, Raspberry pi (controller), GSM, Zigbee 
Volume: 5
Issue: 2
Page: 86-88
Publish at: 2016-08-01

Finding Hidden Communities in Complex Networks from Chaotic Time Series

10.11591/ijeecs.v3.i2.pp350-355
Jiancheng Sun
Recent works show that complex network theory may be another powerful tool in time series analysis. In this paper, we construct complex networks from the chaotic time series with Maximal Information Coefficient (MIC). Each vector point in the reconstructed phase space is represented by a single vertex and edge determined by MIC. By using the Chua’s circuit system, we illustrate the potential of these complex network measures for the detection of the topology structure of the network. Comparing with the linear relationship measure, we find that the topology structure of the community with MIC reveals the hidden or implied correlation of the network.
Volume: 3
Issue: 2
Page: 350-355
Publish at: 2016-08-01

Impulsive Noise Cancellation from ECG Signal using Adaptive Filters and their Comparison

10.11591/ijeecs.v3.i2.pp369-376
Mihir Narayan Mohanty , Sarthak Panda
Impulsive Noise is the sudden burst noise of short duration. Mostly it causes by electronic devices and electrosurgical noise in biomedical signals at the time of acquisition. In this work, Electrocardiograph (ECG) signal is considered and tried to remove impulsive noise from it. Impulsive noise in ECG signal is random type of noise. The objective of this work is to remove the noise using different adaptive algorithms and comparison is made among those algorithms. Initially the impulsive noise in sinusoidal signal is synthesized and tested for different algorithms like LMS, NLMS, RLS and SSRLS. Further those algorithms are modified in a new way to weight variation. The proposed novel approach is applied in the corrupted ECG signal to remove the noise. The effectiveness of the proposed approach is verified for ECG signal with impulsive noise as compared to the traditional approaches as well as previously proposed approaches. Also the performance of our approach is validated by SNR computation. Significant improvement in SNR is achieved after removal of noise.
Volume: 3
Issue: 2
Page: 369-376
Publish at: 2016-08-01

Hardware Implementation of Cascaded Hybrid Multilevel Inverter with Reduced Number of Switches

10.11591/ijeecs.v3.i2.pp314-322
Chinnapettai Ramalingam Balamurugan , S.P. Natarajan , T.S. Anandhi , R. Bensaraj
This paper presents the comparison of various multicarrier Pulse Width Modulation (PWM) techniques for the Cascaded Hybrid Multi Level Inverter (CHBMLI). Due to switch combination redundancies, there are certain degrees of freedom to generate the five level AC output voltage. This paper presents the use of Control Freedom Degree (CFD) combination. The effectiveness of the PWM strategies developed using CFD are demonstrated by simulation and experimentation.  The simulation results indicate that the chosen five level inverter triggered by the developed Phase Disposition(PD), Phase Opposition and Disposition(POD), Alternate Phase Opposition and Disposition (APOD), Carrier Overlapping (CO), Phase Shift (PS) and Variable Frequency (VF) PWM strategies developed are implemented in real time using FPGA. The simulation and experimental outputs closely match with each other validating the strategies presented.
Volume: 3
Issue: 2
Page: 314-322
Publish at: 2016-08-01

The Research on Intelligent Seating Position Type LED Table Lamp

10.11591/ijeecs.v3.i2.pp331-335
Ling Liu , Qi Wang
Taking STC89C52RC single-chip as control core, this research realizes intelligent control function, which can automatically detect whether there is someone in the room and turn on/off LED table lamp; brightness of LED lamp can be adjusted with manual mode. In addition to that, it also has other functions such as displaying time and date, and posture correction. In general, time, data and brightness can be regulated through key module. 8 high brightness white LED are used in illumination module, among which, light sensitive module is applied for testing luminous intensity of environment; ultrasonic distance measuring module is utilized for detecting the distance from men to table lamp through transmitting and receiving ultrasound. In the evening, light is on when the distance from men to table lamp is within certain range; and light is off when exceeding this range. However, if the distance is lower than the specified minimum distance, buzzer will alarm to warn user that the seating position needs to be corrected. C language programming is employed for the integrated software to achieve the overall control function.
Volume: 3
Issue: 2
Page: 331-335
Publish at: 2016-08-01

An Improved Chaos Electromagnetism Mechanism Algorithm for Path Optimization Problem

10.11591/ijeecs.v3.i2.pp475-480
Shoulin Yin , Jie Liu , Lin Teng
As we all know, traditional electromagnetism mechanism (EM) algorithm has the disadvantage with low solution precision, lack of mining ability and easily falling into precocity. This paper proposes a new chaos electromagnetism mechanism algorithm combining chaotic mapping with limited storage Quasi-Newton Method (EM-CMLSQN). Its main idea is that it adopts limit quasi-Newton operator to replace the local optimization operator in EM algorithm for local searching in the late of algorithm. In the process of algorithm, the chaos mapping is introduced into optimization processes, and it generates new individuals to jump out of local to maintain the population diversity according to characteristics of chaos mapping random traversal. Finally, the experiments show that the new algorithm can effectively jump out of local optimal solution through comparing three continuous space test functions. The new algorithm has obvious advantages in terms of convergence speed compared to traditional EM algorithm, in addition, it is more accuracy than particle swarm optimization (PSO) algorithm. We compare the new chaos electromagnetism mechanism algorithm with ant colony optimization (ACO) algorithm, PSO algorithm, the results represent that new scheme can obtain the optimal path in the path optimization process, which shows that the new method has better applicability in the discrete domain problem.
Volume: 3
Issue: 2
Page: 475-480
Publish at: 2016-08-01
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