		FeedBack \| Contact Us \| Links \| Site Map

Welcome to Journal of Theoretical and Applied Information Technology

Submit Paper / Call for Papers

Journal receives papers in continuous flow and we will consider articles from a wide range of Information Technology disciplines encompassing the most basic research to the most innovative technologies. Please submit your papers electronically to our submission system at http://jatit.org/submit_paper.php in an MSWord, Pdf or compatible format so that they may be evaluated for publication in the upcoming issue. This journal uses a blinded review process; please remember to include all your personal identifiable information in the manuscript before submitting it for review, we will edit the necessary information at our side. Submissions to JATIT should be full research / review papers (properly indicated below main title).

Journal of Theoretical and Applied Information Technology
April 2014 | Vol. 62 No.2

Title:	STUDY ON THE DELAY OF UAV DATA-LINK BASED ON DARKROOM CALIBRATE-LINK METHOD
Author:	HUANG WENZHUN
Abstract:	he existing test method for properties of UAV data-link is usually the actual flight test or field "distance" test, which has long test cycle and difficulty for the extraction of test data. In view of this situation, we in this work adopted the data-link semi-physical simulation test platform based on darkroom calibrate-link method, establishing and analyzing the space natural decline model, atmospheric environment model, and aircraft attitude angle model that affecting the transmitting and receiving of signals. Meanwhile, the average delay from-terminal-to-terminal and the fluctuation of the average delay of the UAV under different MAC channel access protocols are discussed using the darkroom calibrate-link method. In order to improve the response characteristics of the UAV, time delay is compensated using optimal control methods, and the effectiveness of the compensation method is validated based on and the platform we built. The simulation results show that, the design of UAV data-link can be calculated by this theory, and the introduction of the optimal control method significantly improves the dynamic response characteristics of the UAV.
Keywords:	UAV Data-Link; Calibrate-Link Method; Compensation Method
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	MODELLING AND ANALYSIS OF PARALLEL BOOST CONVERTER FOR PHOTOVOLTIC APPLICATIONS
Author:	T.AJITH BOSCO RAJ, R.RAMESH
Abstract:	The main objective of this paper is to develop a mathematical modelling and design a high efficient photovoltaic (PV) application with proposed parallel boost converter. This model is based on mathematical equations and is described through an equivalent circuit including a PV source with MPPT, a diode, a series resistor, a shunt resistor and a dual boost converter with active snubber circuit. This model can extract PV power and boost by using dual boost converter with active snubber. By using this method the overall system efficiency is improved and also the switching losses is reduced.
Keywords:	MPPT, SEPIC Converter, PV module, Parallel Boost Converter
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	SOLVING THE JOB SHOP SCHEDULING PROBLEM WITH A PARALLEL AND AGENT-BASED LOCAL SEARCH GENETIC ALGORITHM
Author:	LEILA ASADZADEH
Abstract:	Job shop scheduling problems play an important role in both manufacturing systems and industrial process for improving the utilization of resources, and therefore it is crucial to develop efficient scheduling technologies. The Job shop scheduling problem, one of the best known production scheduling problems, has been proved to be NP-hard. In this paper, we present a parallel and agent-based local search genetic algorithm for solving the job shop scheduling problem. A multi agent system containing various agents each with special behaviors is developed to implement the parallel local search genetic algorithm. Benchmark instances are used to investigate the performance of the proposed approach. The results show that the proposed agent-based parallel local search genetic algorithm improves the efficiency.
Keywords:	Job Shop Scheduling Problem, Parallel Genetic Algorithms, Local Search, Multi Agent System
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	SENSORLESS SPEED AND REACTIVE POWER CONTROL OF A DFIG-WIND TURBINE
Author:	ADIL BARRA, HAMID OUADI
Abstract:	This paper deals with the problem of wind turbine � DFIG (doubly fed induction generator) speed control. For energy optimization purpose, several optimal wind-turbine speed control strategies have been proposed. However, these techniques require the measurement of wind speed and rotor speed which are both difficult in practice and not very reliable. In this work, sensorless maximum power point tracking (MPPT) control is developed. The control objective is twofold: (i) tracking the maximum available wind power; (ii) regulating the DFIG reactive power. The rotor speed and wind speed are estimated using a nonlinear observer based on the state space model representing the whole DFIG-wind turbine. Moreover, using the estimated mechanical variables, a nonlinear control law is developed with the sliding mode technical to achieve the control objective. The performances of the proposed regulator are analyzed using tools from the Lyapunov stability. These theoretical results are validated by simulation with a wide variation of the wind speed.
Keywords:	DFIG, MPPT, Sliding Mode, High Gain Observer, Lyapunov Stability.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	RESOURCEFUL AND SECURE ROUTING PROTOCOL VIA ACTIVE HIERARCHICAL CLUSTERING MECHANISMS FOR WIRELESS SENSOR NETWORK
Author:	SASIKUMAR M , Dr. R. ANITHA
Abstract:	Wireless sensor network combine information sensing, wireless communication, information processing in current years. Two major constraints related to wireless sensor networks are the dynamic variance of the network caused by capacity constraint of sensor nodes and uncertainties related to wireless links. Moreover, the problem in wireless sensor networks is the active variance in topology and provisioning of secure routing. These problems are attributed to the strict constraint of sensor nodes� energy and the frequently variation of wireless channels qualities, which related with the nodes susceptible to energy failures and higher level of link prone from external interference. Certain works related to the hierarchical clustering did not address the problems related to the deployment model, efficiently on heterogeneous wireless sensor networks. Proposal of this work, introduces, Resourceful and Secure Routing Protocol (RSRP) for Wireless Sensor Networks based on Active Hierarchical Clustering mechanism (RSRP-AHC). Resource from the neighboring nodes serves as the dynamic information for the current network, with which sensor nodes make forwarding decisions based on energy aware and in a secure manner using RSRP. RSRP-AHC partition the nodes into clusters and select the Cluster Head (CH) based on the energy and Non Cluster Head (NCH) nodes join in the specific CH based on SNR values. Error removal during hierarchical cluster routing is achieved to avoid end to end error occurrence in network. Security is derived by isolating the malicious nodes using resourceful based secure routing pattern analysis. The experimental performance of RSRP-AHC mechanism is evaluated against Location-Based Pair wise Key Pre distribution model to attain packet delivery ratio, security level, and improved error recovery rate.
Keywords:	Hierarchical Clustering, Cluster Head, Sensor network, Resourceful and Secure Routing Protocol, Wireless Link
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	PERFORMANCE ANALYSIS OF FUSION BASED BRAIN IMAGE CLASSIFICATION USING MINIMUM DISTANCECLASSIFIER
Author:	S. ANBUMOZHI, P.S. MANOHARAN
Abstract:	Image fusion is well used for medical brain image classification. Wavelet transform is the most commonly used image fusion method, which fuses the source images' information in wavelet domain according to some fusion rules. But because of the uncertainties of the source images' contributions to the fused image, how to design a good fusion rule to integrate as much information as possible into the fused image becomes the most important problem. This paper focused to classify the brain image into normal and abnormal image using minimum distance classifier algorithm. The proposed methodology consists of spatial domain filter, fusion, clipping circuit and minimum distance classifier algorithm. The difference features are extracted from fused image and compared with trained extracted feature set. The low power architecture for the proposed brain image classification method is presented in this paper. The proposed hardware architecture consumes power of 151mW in CMOS 90nm technology.
Keywords:	Fuzzy Reasoning, Fuzzy Rules, Image Fusion, Low Power
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	PREDICTION OF SOFTWARE RELIABILITY USING COBB-DOUGLAS MODEL IN SRGM
Author:	B.ANNIPRINCY , Dr.S.SRIDHAR
Abstract:	Software reliability refers to the likelihood of software to function without failure for a specified duration of time under few conditions. Software testing indicates the process that identifies the faults in totality and worth of developed computer software. Yet, running software testing for a longer period will not result in bug free software and high reliability. Further, good quality software will be ensured with an optimum amount of code. The amount of faults eradicated will not depend on testing time alone. Hence, a two dimensional software reliability growth model is being proposed, which makes use of Cobb- Douglas production function that includes testing time and testing coverage effects on the number of faults removed in the software system. Complete elimination of faults from software is impossible because of software complexity and nature of testing team. This event is termed as imperfect debugging. Error generation is defined as the process in which the faults are imperfectly removed and additional faults emerge from these existing faults. An S-shaped model with imperfect debugging and fault generation is being developed in this paper to provide solutions for the problems associated with software testing.
Keywords:	Software Reliability, Two Dimensional, Non-Homogeneous Poisson Process (NHPP), Testing Coverage (TC), Cobb-Douglas Model, Imperfect Debugging, S-Shaped Model.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	THE IMPLEMENTATION OF ENTERPRISE SERVICE BUS (ESB) IN GRADUATION BUSINESS PROCESS INTEGRATION
Author:	WIRANTO HERRY UTOMO, THEOPHILUS WELLEM
Abstract:	ESB is one of SOA pillars besides WS and BPEL. ESB is an infrastructure for SOA service connection and message exchange. The main function of ESB is routing, protocol and message or data transformation. Protocol and message transformation function in ESB help to deal with protocol and data discrepancy. ESB eases connection, mediation and the re-use of service components. It also simplifies integration that will later improve integration scalability. This research has successfully integrated graduation business process that involves some units including Faculty, Library, Dormitory, Administration and Academic Bureau, Student Affair bureau, Finance Department, and Laboratory. This integration of graduation business process uses ESB as integration middleware. Web services integration reveal the role of ESB in routing and message and protocol transformation.
Keywords:	SOA, ESB, BPEL, integration, web service
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	COMPUTATIONAL INTELLIGENCE TECHNIQUES FOR EFFICIENT POWER DISTRIBUTION AND CONSUMPTION: A SURVEY
Author:	M.SHEEBA SANTHA KUMARI, A.P.SHANTHI, V.UMA MAHESWARI
Abstract:	Affordable and reliable electricity plays a major role in shaping the world economy as a nation�s growth in the gross domestic product (GDP) can be tracked to its growth in electricity. The consumption of electricity has gained critical attention as it acts as a production factor for corporations and welfare factor for societies. Smart grid or intelligent electricity grids that use information and communication technologies are currently deployed to offset the increasing energy pressure. These smart grids are driven by the state of the art IT solutions like artificial intelligence, machine learning and data mining techniques. The techniques empower producers and suppliers of electricity for efficient power planning and distribution. It also enables consumers to save electricity and cut off costs through intelligent consumption. The main objective of this paper is to provide a contemporary look at the usage of these techniques intelligently, to monitor, control and forecast electricity usage.
Keywords:	Computational Intelligence Techniques, Electricity Data Analysis, Intelligent Power Distribution and Consumption
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	CROSS LAYER DESIGNS TO OPTIMIZE THE POWER CONSUMPTION IN WIRELESS SENSOR NETWORKS
Author:	K.LAKSHMISUDHA, Dr.C.ARUN
Abstract:	Wireless sensor networks are characterized by limited resources in terms of memory, computation power, and energy. As WSN nodes are powered by batteries, they have hard energy constraints therefore, efficient use of energy is one of the main design considerations in Wireless sensor networks. Since all layers of protocol architecture influence the energy consumption, exploiting synergies between these layers by a cross layer design will result in an efficient energy utilization of the system. In this paper we have discussed about the importance of Cross Layer Design and the comparative analysis of the various cross Layer Design protocols.
Keywords:	Sensor, Energy efficiency, Open system Interconnection(OSI) Model,Cross layer design, delay, network lifetime, Cross Layer Frame work.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	TUMOR BRAIN DETECTION THROUGH MR IMAGES: A REVIEW OF LITERATURE
Author:	MOHAMMED SABBIH HAMOUD AL-TAMIMI , GHAZALI SULONG
Abstract:	Today�s modern medical imaging research faces the challenge of detecting brain tumor through Magnetic Resonance Images (MRI). Normally, to produce images of soft tissue of human body, MRI images are used by experts. It is used for analysis of human organs to replace surgery. For brain tumor detection, image segmentation is required. For this purpose, the brain is partitioned into two distinct regions. This is considered to be one of the most important but difficult part of the process of detecting brain tumor. Hence, it is highly necessary that segmentation of the MRI images must be done accurately before asking the computer to do the exact diagnosis. Earlier, a variety of algorithms were developed for segmentation of MRI images by using different tools and techniques. However, this paper presents a comprehensive review of the methods and techniques used to detect brain tumor through MRI image segmentation. Lastly, the paper concludes with a concise discussion and provides a direction toward the upcoming trend of more advanced research studies on brain image segmentation and Tumor detection.
Keywords:	Brain Tumor, Magnetic Resonance Image (MRI), Preprocessing and Enhancement, Segmentation, Feature Extraction, Classification
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	TWO LEVEL CLUSTERING APPROACH FOR DATA QUALITY IMPROVEMENT IN WEB USAGE MINING
Author:	YUHEFIZAR, BUDI SANTOSA, I KETUT EDDY P., YOYON K. SUPRAPTO
Abstract:	Web Usage Mining (WUM) is a term related to the extraction of knowledge from web log data. Web log data has a lot of irrelevant data to proceed WUM. Therefore, it requires several steps to get a good quality of data, because the final result of WUM depends on the quality of the input data. Therefore, in this paper we propose a new approach to overcome these problems, hence, it is called the two level clustering approach. The first level clustering is performed on the data in the form of access frequently and use non-hierarchical cluster method, followed by a second level clustering on the web log data in the form of user access. At the second level clustering, it combines cluster hierarchical and non-hierarchical methods. From the experiments, 90.78% on web log data quality is reached
Keywords:	Data Quality Improvement, Two Level Clustering, Web Log Data, Web Mining, Web Usage Mining
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	AN ENHANCEMENT OF FRAMEWORK SOFTWARE RISK MANAGEMENT METHODOLOGY FOR SUCCESSFUL SOFTWARE DEVELOPMENT
Author:	ABDELRAFE ELZAMLY, BURAIRAH HUSSIN
Abstract:	Despite much research and progress in the area of software project management, many software projects have a very high failure rate. This risk is not always avoidable, but it is controllable. The aim of this paper is to propose the new framework software risk management methodology for successful software project. There are 5 main phases such as identification risk, risk analysis and evaluation, risk treatment, risk controlling, risk communication and documentation for software development life cycle. Indeed, our approach focuses on identifying software risk factors, and risk management techniques and on how to manage software risk factors with statistical and mining techniques. Our framework derived data from questionnaires and historical data from software companies. Successful software project risk management methodology will greatly improve the probability of software project success.
Keywords:	Software Project Management, Risk, Software Risk Management Methodology, Software Development Lifecycle, Software Risk Factors, Risk management techniques, Statistical and mining techniques
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	AN EFFICIENT ROAD TRACKING FROM AERIAL IMAGES BY MEANS OF FILTER METHODS
Author:	K.MADHAN KUMAR , R.KANTHAVEL
Abstract:	To many geographic systems (GIS) application scheme such as urban planning and navigation, updating road network database is critical problem. Rapidly changing urban environments accelerate the need for frequent updates or revisions of road network databases. With the advent of high-resolution satellite images, there has been a resurgence of research interest in road extraction techniques. However, due to the extreme complexity of an urban scene, automatic road network extraction continues to be challenging research topic. In this paper, we have proposed a road map extraction system with two efficient filters using satellite images. Here, Unscented Kalman filter (UKF) is used in combination with Gauss-Hermite Kalman Filter (GHKF) to trace and identify various connected road paths and to avoid obstacles under diverse conditions. Unscented Kalman filter (UKF) component is responsible for tracing axis coordinates of a road region until it comes to a severe obstacle or an intersection. Then, the Gauss-Hermite Kalman Filter (GHKF) module takes the control of the road extraction process and regains track of the road or possibly road branches on the other side of a road junction or obstacle. From the results, we ensure that the proposed road extraction technique outperformed the existing approach by achieving the accuracy of 98.452% in cluster 10.
Keywords:	Unscented Kalman Filter (UKF) And Gauss-Hermite Kalman Filter (GHKF), Satellite Image, Road Extraction,
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	AN APPROACH FOR DESIGN AND IMPLEMENTATION OF SECURE VIDEO STREAMING USING SRTP
Author:	P. IYYANAR, DR. M. CHITRA
Abstract:	Video streaming is one of the most important and growing application in multimedia communication due to reduction of storage and increase in high speed network access for any environment. Real-time live video or stored video is the predominant part of the real-time multimedia networking. In the streaming technology, the video file need not be downloaded in full, but is being played out while the content of the video file are being received and decoded. This paper proposes secure video streaming using SRTP protocol. The video formats of the RTP transmission are .MPG, .AVI video container. The value of the prototype system is to provide an effective transmission across the Internet with quality-guaranteed manner while using RTP and RTCP protocol on un-trusted Client�Server networks.
Keywords:	Video Streaming, RTP, RTCP, SRTP
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	AUTOMATIC ENLARGEMENT OF SPEECH CORPUS BY USING DIFFERENT TECHNIQUES
Author:	MANSOUR ALSULAIMAN
Abstract:	Development of the speaker recognition system with high recognition rates is still an active area for the researchers. Stochastic model based speaker recognition requires a large data for the training; otherwise poor recognition rates are obtained. This research deals with the problem of speaker recognition when only a few samples are available for training of the system. To avoid the low recognition rate caused by small speech corpus, automatic techniques for the enlargement of speech corpus are proposed in this paper. The reliability of the new enlarged corpus is evaluated by using it to train a GMM speaker recognition system. The system is trained by using different combinations of the new generated speech samples, which are obtained by applying the proposed enlargement techniques on the original training. We test these methods when there is only one sample and when there are two samples. Each approach has various groups and every group has a different combination of the new generated samples. The results of the experiments are satisfactory. The obtained recognition rate with one sample is 89.39% for male speakers and 97.76% for female speakers. When there are two original samples the highest recognition rates is 100%.
Keywords:	Speaker Recognition, Corpus enlargement, Speech lengthening, Limited sample corpus, HMM, GMM
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	IMPLEMENTATION OF FLOATING POINT MAC USING RESIDUE NUMBER SYSTEM
Author:	DHANABAL R, SARAT KUMAR SAHOO,, BARATHI V, NAAMATHEERTHAM R SAMHITHA, NEETHU ACHA CHERIAN, PRETTY MARIAM JACOB
Abstract:	This paper presents the design and implementation of 16-bit floating point RNS Multiply and Accumulate (MAC) unit. Residue Number System (RNS) gained popularity in the implementation of fast arithmetic and fault-tolerant computing applications. Its attractive properties such as parallelism and carry free computation have speed up the arithmetic computations. Floating Point can be represented as where is Mantissa, is the Exponent and is the Base. The MAC unit consists of three units - Floating-point multiplier, Conversion unit and an Accumulator. The floating-point multiplier makes use of Brickell�s Algorithm, the conversion unit makes use of a parallel conversion for the forward conversion and the Chinese Remainder Theorem for reverse conversion and the accumulator includes an adder unit which can make use of any of the conventional adders that depends on the moduli of the RNS being used. The input takes form of half-precision format where there is 1-bit for sign, 5-bits for exponent and 10-bits for mantissa. The design is coded in Verilog HDL and the synthesis is done using Cadence RTL Compiler.
Keywords:	MAC, Residue Number System (RNS), Floating point, Moduli
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	IMPLEMENTED OF SUPERVISED TABLE SPIHT ALGORITHM IN VLSI PROCESSOR FOR IMAGE TRANSMISSION
Author:	S.HARSHAVARDHAN NAIDU, Dr. K. SIDDAPPA NAIDU
Abstract:	Image coding is to represent an image with as few bits as possible while preserving the level of quality and intelligibility required for the given application. In this project we use the Supervised Table Set-Partitioning In Hierarchical Trees (STSPIHT) algorithm. In which the lookup table is supervised for the transmission of images to preserve the brightness and contrast. Approach supports progressive transmission which makes maximum use of all previously transmitted data. With progressive transmission, one can have a rough picture of the image transmitted and access it before the end of the transmission. When this algorithm is implemented in the VLSI processor the number of gate levels is reduced. The processing speed for the transmission is increased by 85% when compared to the existing methods.
Keywords:	Refinement Pass, Lookup tables, Significant Pixels, Insignificant Pixels, SPIHT.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	PROTECTION OF FREE ROAMING MOBILE AGENTS USING CUSTOMIZED ROOT CANAL ALGORITHM AGAINST MALICIOUS HOST ATTACKS
Author:	GEETHA G, JAYAKUMAR C
Abstract:	Mobile agent plays an important role in developing applications of open, distributed and mixed environments, such as the internet. As an agent travels do execution in different environment in different host or servers, the agent are in need of protection themselves and their data from various types of attacks. Providing security to the mobile agent (static code) and it data (dynamic code) is emergence need in Mobile agent Technology. The main issue of free roaming mobile agent in data collection is colluded truncation attack. In this paper, the Customized Root Canal (CRC) Algorithm is used to protect the code and data of the agent through code and data integrity. To overcome colluded truncation attack CRC algorithm immediately return collected data to the originator
Keywords:	Mobile Agents, Free Roaming, Protection, Attacks, Data Security, Code Integrity, Data Integrity
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	ANALYSIS OF WIRELESS AD HOC SENSOR NETWORK FOR SELECTION COMBINING AND THRESHOLD-HYBRID SELECTION/MAXIMAL RATIO COMBINING
Author:	NAGESH K. N, SATYANARAYAN D, M.N GIRI PRASAD
Abstract:	The presented paper discusses and presents the analytical as well as simulated performance analysis allied with network connectivity and key problems of network coverage in Wireless Sensor Networks (WSN). The issue of network connectivity may be considered as one of the most significant problem in wireless network. The connectivity issue or coverage problem significantly influences the network capability and overall network efficiency. In the presented paper, we propose a research work oriented towards computation of node isolation probability and to perform analysis of network connectivity in the presence randomness in channel behavior, while considering of fading effects like Rayleigh fading of threshold-based hybrid selection/maximal-ratio combining (T-HS/MRC). In this paper, the analysis of selection combining has been done while considering the independent communication paths and even with correlated paths. On the basis of predetermined normalized threshold parameter a T-HS/MRC combiner selects the combined branches and it finds the potency of the instant signal-to-noise ratio (SNR) of individual network branch. Consequently, the number of combined branches is always a random variable, to a certain extent than a predetermined number, as in conformist hybrid selection mechanism/ maximal-ratio combining (H-S/MRC) technique. The present analytical and simulated work motivates to design more practical and reliable system.
Keywords:	Ad-hoc Network, Hybrid Selection, Maximal-Ratio Combining, Rayleigh Fading, Selection Combining.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	ONLINE DATABASE OF QURANIC HANDWRITTEN WORDS
Author:	MUSTAFA ALI ABUZARAIDA, AKRAM M. ZEKI, AHMED M. ZEKI
Abstract:	In this paper, an online Arabic handwritten words database is presented to be the first online Quranic handwritten words dataset. The dataset was collected naturally using Acer computer tablet 1.5 GHz core i3 by writing the words on a smooth touch screen using a special pen stylus. Here, a platform interface was designed to collect the handwritten words using Matlab environment. Handwritten words were chosen as the most common words repeated in the holly Quran. The initial version of (Quranic Handwritten Words) QHW database includes 120 handwritten words and divided equally into two sets to be written by 200 writers in total. The QHW database contains 12000 sample including more than 42,800 characters and 23,300 sub words. Handwritten words were mainly written by variety of people aged between 6 and 50 years from several countries. The main aim of creating this database is to be used in an online Arabic recognition system and make it available to other researchers while there is no public database can be use nowadays. Also, Some preprocessing steps those applied to standardize the all words of this database are presented in this paper.
Keywords:	Quran, Arabic Language, Handwriting Recognition, Online Words Database.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	TOUCH GESTURE AUTHENTICATION FRAMEWORK FOR TOUCH SCREEN MOBILE DEVICES
Author:	ALA ABDULHAKIM ALARIKI, AZIZAH ABDUL MANAF
Abstract:	With the increased popularity of touchscreen mobile phones, touch gesture behavior is becoming more and more important. Increasing demand for safer access in touch screen mobile phones, ancient strategies like pins, tokens, or passwords fail to stay up with the challenges conferred. Most of the current touch gesture authentication schemes facing problem with accuracy based on score classifiers of EER, FAR and FRR. In addition, collecting touch duration feature only may not be able to achieve the desired authentication accuracy and robustness. However, gathering more touch features such as finger pressure, finger size and acceleration would help to get a better authentication accuracy and verification performance. These efforts have allowed us to provide a comprehensive summary of recent work on touch behavior authentication and a frame work to implement the system. Finally, we conclude the future work in this topic which is implement and test the framework of touch gesture gesture-based behavioral biometrics and obtain more accuracy and robustness authentication system.
Keywords:	Behavioral Biometrics, Gesture authentication, Touch Behavioral, Touch Authentication.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	ANALYSIS OF DYNAMIC PERFORMANCE COMPARISON OF DIFFERENT PWM TECHNIQUES INVERTER FED INDUCTION MOTOR DRIVES
Author:	S.DINESH KUMAR, R.VENKATESH, R.SRIRANJANI, S.JAYALALITHA
Abstract:	PWM Inverter fed induction motor drive plays a major role in industrial application such as drilling mills, crane, hoist etc. The major problem in Pulse Width Modulation(PWM) inverter is torque ripple, fluctuation in stator current and transient response of the speed. This paper deals with the modelling and simulation of dynamic performance of various PWM inverter fed induction motor drives in stationary frame. The Induction motor is modeled and stimulated in Stationary frame theory. The steady state and transient response of drive under dynamic load condition is studied and compared with different types of PWM techniques. Space vector modulation fed induction motor drive is compared with various PWM fed inverter drive and the performance is analyzed in MATLAB/Simulink.
Keywords:	Pulse width Modulation, Torque, Induction motor, MATLAB/ Simulink.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	FL2440 HARDWARE BASED NEURAL DATA SECURITY USING POLARIZATION ENCRYPTION (EP) APPROACH
Author:	KULDEEP CHOUHAN, DR. S. RAVI
Abstract:	Encryption scheme is widely used in the field of communication network security. The network systems are focus on reliability, service and functions, which provided end-to-end service to protect encrypted data node. It enables to interconnect the various functional levels to interact and communicate with each other. An interconnected group of nodes use a computational model for data processing, which is based on a node connections approach. In this work, data are transmitted from �n� inputs as packets (e.g. 1 byte), through hardware based EP, shows polarized output after checking bits. Similar, process is followed to make sure for encrypted data for another in node clusters is proposed. An experimental setup is done with python based polarised NN output to check whether testing phase of bits is enable to check an error during training process is also presented.
Keywords:	Data Security, Polarization Encryption, FL2440 Hardware Board, Cluster Of Nodes
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	ENERGY BALANCE OF OPTIMIZED THREE-PHASE HIGH VOLTAGE POWER SUPPLY FOR MICROWAVES GENERATORS WITH N MAGNETRONS BY PHASE (TREATED CASE N=1)
Author:	M.BASSOUI, 1M.FERFRA, M.CHRAYGANE, M.OULD AHMEDOU, N.ELGHAZAL, B.BAHANI, A.BELHAIBA
Abstract:	This original work deals with the calculation of the power and the performance of optimized three-phase high voltage power supply for industrial microwaves generators with N magnetrons by phase (Treated case N=1). The design of this power supply is composed of three π quadruple models equivalents of new three-phase transformer with magnetic shunts of each phase; every one supplies at its output a voltage doubler cell composed of a capacitor and a diode that in its output supplies only one magnetron. In this work we will validate under Matlab Simulink the functioning of this new three-phase power supply and we will calculate its performance .The results obtained from this simulation compared with those obtained by experimental and simulated of conventional power supply using a single phase transformer for one magnetron are in good conformity. Following that, we will apply an optimization strategy that aims to reduce the volume of the three-phase transformer while respecting the constraints recommended by the manufacturer concerning the current flowing in each magnetron (Imax <1.2 A, IAv ≈ 300 mA). Based on the selected solution from optimization, we will validate the functioning of the power supply by calculating its performance that must be identical to that treated for the reference case.
Keywords:	Optimization, Power Supply, Performance, Modeling, Energy Balance, Average Power
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	ARTIFICIAL BEE COLONY (ABC) AND NEURAL NETWORK BASED OPF TECHNIQUE WITH FACTS CONTROLLER
Author:	M.KARTHIKEYAN, P.AJAY-D-VIMAL RAJ
Abstract:	In the paper, hybrid technique for solving optimal power flow problems that occur in power systems. The proposed hybrid technique is the combination of artificial bee colony (ABC) algorithm and artificial intelligence (AI) technique. The purpose of the ABC algorithm is used to optimize the optimal operating range of generation limits. So, the fuel cost and the emission of the power generation system is maintained economically. Because, the ABC is an optimization algorithm based on the intelligent foraging behaviour of honey bee swarm. Here, the artificial neural network (ANN) is used as an AI technique. ANN is one of the AI techniques which used for determining the optimal injected voltage magnitude and voltage angle of UPFC. The optimal placement of UPFC is depends on the power flow deviation and the combination of the power system buses. Using the propose hybrid OPF technique, the optimal power flow of the power system is maintained. The proposed hybrid technique is implemented in MATLAB working platform and the power flow parameters are evaluated. The performance of the hybrid technique is compared with ABC algorithm.
Keywords:	OPF, Hybrid Technique, FACTS Controller, UPFC, ABC Algorithm, AI Technique, ANN, Power Loss.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	QUANTUM SEGMENTATION APPROACH FOR VERY HIGH SPATIAL RESOLUTION SATELLITE IMAGE: APPLICATION TO QUICKBIRD IMAGE
Author:	SALAH EDDINE MECHKOURI, RACHID ZENNOUHI, SALEH EL JOUMANI, LHOUSSAINE MASMOUDI, JAVIER GONZALEZ JIMINEZ
Abstract:	Through previous studies on the extraction of information for the land use and land cover, and the segmentation for the Very High Spatial Resolution Satellite Images �VHSRSI� have shown satisfaction, such as the unsupervised classification (ISODATA and KMEANS) and the hierarchical analysis of the 2D-histograms. However, in various situations, closed areas are classified as homogeneous. We believe that the quantum mechanics theory which is connected with information theory in communication and digital image processing, could take into account more information about pixels classification process and permits to distinguish between closed distinct areas. Based on this theory, we develop a new image segmentation algorithm for Very High Spatial Resolution Satellite Images. Pixels classification is performed by unsupervised classification method via the hierarchical analysis of the 2D-histograms which is constructed using the wavefunction. The proposed approach has been tested on synthetic image, and applied to urban environment classification for Quickbird data of a selected urban zone of the region of Rabat-Sale-Zemour-Zayer, prefecture of Skhirat-Temara, Morocco.
Keywords:	Classification, 2D-histogram, Wavefunction, Quickbird image, Segmentation
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	A STUDY ON THE SATISFACTION WITH SERVICE-ORIENTED WEDDING CATERING PLANNING SYSTEM
Author:	HUNG-TENG CHANG
Abstract:	Due to the change of social atmosphere and the decreasing population, the wedding catering industry in Taiwan is facing increasingly fierce pressure of market competitiveness. Moreover, due to the increased popularity of information technology and the application of service-oriented architecture (SOA) information system to marketing and management procedures, the use of planning system has also become a strategy to attract young consumers and increase consumer willingness. This study selected a certain wedding catering industry operator in the northern Taiwan who commissioned the development of a wedding catering planning system as the research object, and selected the customers who actually used and completed consumer behavior as the subjects, in order to understand whether SOA-based wedding catering planning information system meets the needs of customers. Firstly, this study collected and arranged the studies concerning information system and customer satisfaction. Secondly, this study used the IS Success Model proposed by DeLone and McLean as the basis, took into account the applicability and purpose of this study and referred to the studies and questionnaires of relevant scholars to design the questionnaire of this study. Thirdly, this study distributed questionnaires via mail or interviews to assess the results and complete the arrangement of raw data. Lastly, this study performed statistical analyses on the data according to the research methods and hypotheses. The empirical results of this study are as follows: (1) the subjects� overall actual assessment on the system met the expected level of this study. Therefore, the developed system was viewed as a successful set of planning system which could effectively meet consumer satisfaction and market needs; (2) system quality affects willingness to use and consumer satisfaction; (3) information system affects willingness to use and user satisfaction; (4) willingness to use and user satisfaction affects net benefits. The aforementioned findings and results can be provided as reference for wedding catering enterprises in Taiwan to introduce relevant systems.
Keywords:	Service-Oriented Architecture, Is Success Model, Information Quality, System Quality, User Satisfaction
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	KEY-DEPENDENT S-BOX IN LIGHTWEIGHT BLOCK CIPHERS
Author:	SUFYAN SALIM MAHMOOD ALDABBAGH, IMAD FAKHRI TAHA AL SHAIKHLI, MUHAMMAD REZA ZABA
Abstract:	This paper introduces new methods of how to generate a suitable key-dependent substitution boxes (S-boxes) for use in lightweight block ciphers. An S-box is commonly used in block ciphers to provide the crucial property of nonlinearity. And one of the advantages of using key-dependent S-boxes is that it is difficult for an attacker to perform attacks such as differential cryptanalysis on the cipher since the S-boxes are unknown. However, implementing such S-box incurs costs, which is one of the criteria that a lightweight block cipher has to minimize. It is therefore important to have a key-dependent S-box method which always outputs a cryptographically strong S-box and has a small footprint. In this paper, we propose novel methods on how to generate s-boxes based on the value of the secret key. Moreover, this research showed the intensive analysis for cost and security for each method.
Keywords:	S-Box, PRESENT Lightweight Block Cipher, Key Dependent S-Box, Linear Cryptanalysis And Differential Cryptanalysis
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text

Title:	A MULTIPLE CLICK BASED GRAPHICAL AUTHENTICATION SYSTEM
Author:	S. YAMINI, Dr. D. MAHESWARI
Abstract:	Authentication is possible in several ways namely textual, graphical, bio-metric, 3D password and third party authentication. In this paper, the authentication system is presented by introducing the multi-level authentication technique which generates the password in multiple levels to access the services. The details of proposed multilevel authentication techniques are presented along with data flows, algorithms. In today�s scenario, graphical password is the alternative in network security to replace text-based password in which users interact with images for authentication rather than input alphanumeric strings. In general, the image-based authentication can be classiﬁed into two categories, i.e, click-based graphical password and choice-based graphical password. However, each of them is having several limitations. In this paper, a multiple Click based graphical authentication system (MC-GAS) is proposed with the purpose of improving the image-based authentication in both security and usability by combining the above two techniques with alpha numeric password.
Keywords:	Graphical Password, Multi-level Authentication, Secured Remote Accessibility, Network Security, Multiple Clicking.
Source:	Journal of Theoretical and Applied Information Technology 20 April 2014 -- Vol. 62. No. 2 -- 2014
Full Text