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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
September 2015 | Vol. 79 No.2

Title:	TOWARDS SECURE CLOUD COMPUTING USING DIGITAL SIGNATURE
Author:	C. MERLIN PAULIESTHER, DR.J.VISUMATHI
Abstract:	Cloud Computing is a new flair of computing in which real time scaling and virtualized resources are provided as services over the internet. The services provided by Cloud Computing can be grouped into three categories: software as a service, platform as a service, infrastructure as a service. Cloud technologies can help to reduce cost, reduce management responsibilities, increase agility and efficiency of organizations. There are various security issues for Cloud Computing as it comprises many technologies including networks, databases, operating systems, virtualization, resource scheduling, Transaction management, load balancing, concurrency control and memory management. Providing Data security is the crucial challenge in Cloud Computing . The Data security in Cloud Computing includes six aspects: Data-in-transit, Data–at-rest, Processing of Data, Data Lineage, Data Provenance, Data Remanence. Even though Many standards and solutions are developed by groups like The Cloud Security Alliance (CSA), and Open Web Application Security Project (OWASP), still there are Many challenges in Cloud Computing security. An architectural model is discussed to mitigate the data threats by enhancing key management system which aims to provide guaranteed computing dynamic environments for end-users.
Keywords:	VM Template, Key Management System, MultiCloud
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	ADAPTATION AND APPLICATION OF PROJECT MANAGEMENT ACCORDING TO THE PMBOK TO A SET OF IT PROJECTS IN A PUBLIC BODY
Author:	SAFAA ERRIHANI, SAID ELFEZAZI, KHALID BENHIDA
Abstract:	Project management provides a permanent advantage in the dynamic context of current organizations. It has evolved into a key role for the success of any project. Besides the PMI (Project Management Institute) already offers several versions of its guide: Project Management Body Of Knowledge PMBOK. Thus, this guide is fast becoming an indispensable tool for practitioners in all organizations and sectors.The main focus of the article is reserved for analyzing and modeling the PMBOK in order to reach a uniform model of project management. The obtained model will be projected on a set of projects within a Moroccan public department. Let's recall that the PMBoK defines the project management in terms of: integration, scope, time, cost, quality, human resources, communication, risk, procurement and the stakeholders of the project. We are also interested in the context of this work to the study of the application of all these knowledge areas in a real project of customer complaints management application.
Keywords:	IT project, Modeling, Project Management, PMBOK.
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	DEVELOPMENT OF TRUSTED OPERATING SYSTEM FOR MOBILE DEVICES
Author:	D.M. MIKHAYLOV, M.I. FROIMSON, A.V. ZUYKOV, A.S. SMIRNOV, A.V. STARIKOVSKIY, I.A. OVCHINNIKOV, R.O. ROSLAVTSEV, D.A.ANDRYAKOV
Abstract:	The number of mobile devices used daily all around the world is growing every day. Mobile devices have become “smart” and, thus, suffer intrusion attempts. Although different antivirus software is being developed, it does not provide overall security. That is why trusted operating systems appear. Trusted (or secure) operating systems for computers exist and are widely spread. However, there is none for mobile devices. This paper is devoted to the development of a trusted operating system for mobile devices. Authors highlight the differences in security issues of ordinary computers and mobile devices and discuss intruder models used in PC operating systems (OS) and in mobile OS. Generation and analysis of requirements to a secure mobile OS and secure mobile OS architecture are provided. Authors also tell about general scheme of the mobile device’s access to the Internet and provide suggestions to improve current security policy.
Keywords:	Android, secure operating system, trusted operating system for mobile devices.
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	PERFORMANCE ANALYSIS OF SEAMLESS VERTICAL HANDOVER IN 4G NETWORKS
Author:	IZZELDIN I. MOHAMED, 2AMRAN A. HADI, MD R. OTHMAN, A. OUDAH
Abstract:	The current extraordinary growth of wireless technology promises an even greater effect on how people communicate, interact and enjoy their entertainment. The growing advances in research and development of wireless communication technologies and the increasing capabilities of electronic devices are driving an evolution towards ubiquitous services to mobile users. Wireless networks become increasingly interoperable with each other and with the high-speed wired networks. This reflects a paradigm shift towards new generations of mobile networks where seamless mobility across heterogeneous networks becomes fundamental. This generation is referred to as fourth generation (4G). 4G wireless networks is envisioned as a convergence of different wireless access technologies providing the user with the best anywhere, anytime connection and improving the system resource utilization. With the advent of new value-added services (video-conference, multimedia streaming, etc.) and novel concepts introduced into Long Term Evolution (LTE) architecture of the 4th Generation (4G) networks, provisioning efficient mobility management with quality of service guarantees and seamless handoff feature become even more important for next-generation wireless network design. Vertical handover, a term used to indicate the handover between two access nodes of two different technologies, is an issue in heterogeneous networks since each technology has its own mobility management solution. Generally, multimedia applications, one of main services in 4G networks, require a short handover latency, low jitter and minimal packet loss. Handover is required to be achieved seamlessly to enable the users want to have a continuous and qualified service regardless of which access technology they have connected. The aim of this work is to present research outcomes including an analysis of UMTS/WLAN integration and the performance of common applications. The work included the development of a model and simulation environment that could be used to gain results suitable for analysis. Specific attention was paid to design tight coupling and loose coupling architectures as this work direction taken was to identify an architecture that can provide better overall performance and flexible interworking. Our results show that tight and loose coupling have advantages depending on the application. For video conference loose coupling provides lower jitter and end to end delay. Tight coupling was found to provide a lower response time for an http page application. Tight coupling was also provides a lower response time for ftp file uploads however to download ftp files loose coupling provides a lower response time.
Keywords:	4G Network, Vertical, Handover, Wireless, Seamless
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	PRIVATE SEARCHING KEYWORD FREQUENCY USING HOMOMORPHIC ENCRYPTION
Author:	N. ANUSHA, M. SUGANYA
Abstract:	With the rapid growth of internet technologies, the web has become the world's largest repository of knowledge. So, it is challenging task of the webmasters to organize the contents of the particular websites to gather the needs of the users. Optimised search engine is used for effectively searching keyword queries which are frequently visited by the user based on their interest. The most frequently used keyword queries are encrypted using homomorphic encryption which are semantically secured through searching mechanism. This paper presents a new framework for a semantic-enhanced Web Page Recommendation (WPR), and a suite of enabling techniques which include semantic network models of domain knowledge and Web usage knowledge, querying techniques, and Web-page recommendation strategies.Time based ranking technique is used to calculate the time taken by each user for visiting the recommended web-pages and also to keep record of the number of users. The privacy of the user is thus enhanced by using the clustered web-pages on the search engine. The proposed technique also provides a set of clustered web-pages which are effectively filtered through private searching keyword query and also provides better web-page features in order to satisfy the user’s requirements.
Keywords:	Semantic network, Web-Page Recommendation(WPR), Domain knowledge, knowledge representation, Web usage mining, Homomorphic encryption
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	DESIGN A SQUARE MICROSTRIP PATCH ANTENNA AT 2.4 GHZ, AND COMPARISON BETWEEN UNSLOTTED AND SLOTTED VERSION
Author:	MOHAMMED B. MAJED
Abstract:	Low profile antennas support the operation of many modern communication systems. Microstrip patch antennas represent one family of compact antennas that offer a conformal nature and the capability of ready integration with communication system's printed circuitry. And it has many advantages over conventional antennas. In this paper a square Microstrip Patch Antenna has been designed at 2.4 GHz frequency. By using Microwave office 2006 software (AWR) for design simulation to get the best parametric design, and compared with a slotted version of the antenna having a slotting shape of letter (P). It included in the design the return loss, gain, radiation pattern, bandwidth, HPBW, co and cross polar isolation parameters. The square slotted antenna that designed has a result of a return loss is about ( - 42.41dB ) and about 12.92% bandwidth.
Keywords:	Return Loss, Coaxial Feed, Bandwidth, Antenna Radiation Pattern, Co-Polar Isolation, Cross-Polar Isolation.
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	ON THE USE OF OPTIMUM CURVES IN ELLIPTIC CURVE CRYPTOGRAPHY FOR WIRELESS SENSOR NETWORKS
Author:	SAEID BAKHTIARI, SUBARIAH IBRAHIM, MAZLEENA SALLEH, MAHDI SHARIFI
Abstract:	Providing security in Wireless Sensor Networks (WSNs) is a considerable challenge due to the concomitant limitations in processing time, power, area and energy consumption in sensor nodes and the nature of wireless links. A variety of cryptographic methods are available for security establishment. Among them, Elliptic Curve Cryptography (ECC) is the best candidate to accomplish this challenge because it provides high security in spite of a smaller key size. In addition, ECC was subject to many recent studies to optimize the time needed for base point selection and point multiplication operations. In this paper, the points on elliptic curves are analyzed, and an efficient implementation of ECC base point selection is proposed. The proposed implementation can be utilized by extremely constrained devices. We prefer to utilize projective coordinate representations of field elements than to utilize affine coordinates over prime finite field Fp, whereas projective coordinates reduce computational complexity by eliminating the multiplicative inverse in point additions and point doubling. This paper further analyzes non-prime order elliptic curves .The analysis results show that the order of the elliptic curve plays a critical role in determining how fast a base point can be selected.
Keywords:	Elliptic Curve Cryptography, Wireless Sensor, Prime Order, Adhoc Networks, Base Point
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	AN ANALYSIS AND ACCURACY PREDICTION OF HEART DISEASE WITH ASSOCIATION RULE AND OTHER DATA MINING TECHNIQUES
Author:	SHABANA ASMI P, Dr. S. JUSTIN SAMUEL
Abstract:	Disease is a term for defining a large amount of healthcare conditions that affects part or all of an organism. Knowledge of various disease symptoms and signs favorable for disease development is necessary to optimize a disease forecaster. Different data mining techniques such as Naive Bayes, Decision Tree, Linear Regression and Association Rule are used to predict the heart disease. Data mining techniques in all disease diagnosis applied over all disease treatment dataset investigate if hybrid data mining techniques can achieve equivalent (or better) results in identifying suitable treatments as that achieved in the diagnosis. In this paper, our work is to more accurately predict the presence of heart disease with added attributes of the disease and using association rules. Final results show that association rule implemented on dataset produces better accuracy.
Keywords:	Artificial Neural Network (ANN), Cleveland Heart Disease Data Set (CHDD), k-Nearest Neighbor (KNN), Heart Disease Prediction and Diagnosis, Knowledge Discovery in Database (KDD)
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	ARCHITECTURE KNOWLEDGE FLOW FRAMEWORK DESGIN
Author:	MUSTAFA S.KHALEFA, MARZANAH A.JABAR, RUSLI HJ ABDULLAH, SALFARINA ABDULLAH
Abstract:	Flow of Knowledge pertains in most teamwork and it attracts the researchers in the field of knowledge management. Since flow of knowledge usually happens in a particular context, context has to be taken into consideration in knowledge flow modeling. Past models of flow of knowledge lacked in terms of software development and lacked in-depth exploration of context modeling, which made those models less applicable. This research proposes a conceptual framework of context oriented flow of knowledge in software development aspects. In this framework, the context is seen as an inseparable element of flow of knowledge, which is regarding the creation, transformation as well as application of knowledge items. Framework KFFD is proposed based on three aspects- flow of knowledge, software development project and ontology. For the proper use of knowledge, dynamic flow to destinations form sources is necessary. In this context, a new framework in KM is analyzing, designing and implementing knowledge flow management systems. One crucial challenge in such systems is the exploration of flow of knowledge from its origin to the receiver. Another challenge is controlling the flow for quality enhancements regarding the requirements of the users. As such, the aim of this research is to provide a framework so as to solve this challenge.
Keywords:	knowledge flow, knowledge flow framework design, type of knowledge flow, knowledge flow management.
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	EVALUATION FOR ASSOCIATION OF CRIME RISK ATTRIBUTES FOR DECISION SUPPORT SYSTEM
Author:	NOOR MAIZURA MOHAMAD NOOR, AHMAD FAIZ GHAZALI, ROSMAYATI MOHEMAD, MD YAZID MOHD SAMAN
Abstract:	The aim of this paper is to evaluate the association between attributes for house breaking crimes identified from police reports. Data collected from the house breaking (HB) crime cases reported can be initially analyzed using statistical methods in several tests. The purpose of conducting the test is to ensure the significant attributes to be utilized in the development of a decision support system based on the proposed generic framework. The result of analysis shows the association between the identified attributes in HB crime reports in terms of its significance using several statistical methods.
Keywords:	Association, Crime Attributes, Decision Support System, Statistical Methods
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	PRODUCT DESIGN METHODOLOGY FOR MODELING MULTI BUSINESS PRODUCTS: COMPARATIVE STUDY BETWEEN UML AND BPMN MODELING FOR BUSINESS PROCESSES
Author:	KNOUNI SALMA, BENHIDA KHALID, EL FEZAZI SAID
Abstract:	The development of a multidisciplinary product (having a strong software component) is a complex task with multiple constraints, especially during the design phase. The mastery of the design phase is a necessary condition for the product development success and therefore assuring its competitiveness on the market. To contribute to this mastery, the formalization and modeling of the process design is imperative. We aim in this article, the formalization of multidisciplinary product’s design methodology with an organizational character, throughout the modeling of the product design process’s different aspects: structural, behavioral ..., which can be exploited by business stakeholders or software analysts. We used two modeling standards: UML and BPMN and we made a comparative study between models obtained by these two standards
Keywords:	Design, multidisciplinary product, process modeling, UML, BPMN.
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	SPECTRUM SENSING SCHEMES FOR STATIC PRIMARY USER SIGNAL UNDER AWGN AND RAYLEIGH FADING CHANNELS
Author:	WASAN KADHIM SAAD, MAHAMOD ISMAIL, ROSDIADEE NORDIN, AYMAN A. EL-SALEH
Abstract:	This paper taught the performance of the proposed sensing models, namely, constant false alarm rate-dynamic waveform detector (CFAR-DWD) are categorized as dynamic threshold (DT), two-stage (TS), and adaptive two-stage (ATS) detection for accurately detecting of the static-primary user (PU) signals, where the state of the PU signal not change during the sensing duration. Whereby it is carried out by deriving a closed-form expressions for the average detection probability for the proposed models over AWGN and Rayleigh fading channels under low signal-to-noise ratio (SNR) environments. In addition, complete mathematical analysis for the normalized throughput and average channel capacity of the secondary network are developed over AWGN and Rayleigh fading channels to demonstrate the impact of the opportunistic spectrum access. Comparison based on simulation was performed of the detection performance and the normalized throughput among the proposed CFAR-DWD, CFAR-DED and conventional schemes. The simulation results demonstrate that the proposed CFAR-DWD can achieve a precise detection performance significantly outperformed that of the CFAR-DED and conventional schemes. Furthermore, there is a significant impact on the detection performance of the CFAR-DWD and CFAR-DED models by Rayleigh fading, and the impact of Rayleigh fading gets clearer when reduces to (0.01) and reaches up to (0.9), which will lead to poor spectrum usage.
Keywords:	Dynamic waveform detection (DWD), Dynamic energy detection (DED), Constant false alarm rate (CFAR), AWGN channel, Rayleigh fading channel, Hard decision combining (HDC) rules.
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	DESIGN PERSPECTIVE OF LOW POWER, HIGH EFFICIENCY SHIFT REGISTERS
Author:	MOHD. MARUFUZZAMAN, Z. H. Jalil, M. B. I. REAZ, L. F. RAHMAN
Abstract:	In low-power digital design, especially in shift registers, flip-flops (FF) plays a significant role. In shift registers, the power consumption of system clock is estimated to be half of the overall system power. Therefore, selecting the right FF is very important for designing an compact size and low power shift register. In this paper, a review of different FF designs that have been applied for different shift register (SIPO, PIPO, SISO and PISO) is presented. The connection between FFs parameters and shift registers is also discussed. FFs architecture is evaluated via its average power, delay and power delay product. Comparative study showed that FFs have great effect on the performance quality of shift registers.
Keywords:	CMOC, FF, Single Edge Triggered FF, Double Edge Triggered FF, Shift Register
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	IDENTIFYING TEXT DOCUMENT PATTERN FOR TWO TERMS APPEARANCES VIA LATENT SEMANTIC ANALYSIS (LSA) METHOD AND TERM DISTANCE BETWEEN TWO DOCUMENTS
Author:	SOEHARDJOEPRI, NUR IRIAWAN, BRODJOL SUTIJO SU, IRHAMAH
Abstract:	Pattern of writing a document is often said to be strongly influenced by the mother tongue, but do not guarantee produce writing that is always the similar pattern. If the trend similarity patterns caused by intentional copying of documents, then it is necessary to be created a detection tool to identify the terms pattern in those documents. This phenomena initiate this paper to acquaint the further investigation on text document pattern recognition for terms appearances by employing latent semantic analysis (LSA) method couple with terms distance between two documents. This study also describes determination of text documents similarity, which in turn can be used for early plagiarism detection.
Keywords:	Text Document, Pattern, Latent Semantic Analysis, Term Distance, Plagiarism.
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	GRID-CONNECTED PHOTOVOLTAIC SYSTEM USING AN ADVANCED BACKSTEPPING APPROACH
Author:	KHALDI NAOUFEL, MALIKA ZAZI, HASSAN MAHMOUDI
Abstract:	The objective of this paper is to present a nonlinear approach to design a suitable controller system for the photovoltaic (PV) single-phase grid-connected system. The system structure includes a PV generator, Boost converter, and DC-AC inverter coupled to grid network. A backstepping controller is developed to extract maximum point power tracking (MPPT), to regulate the DC bus voltage, and to generate a sinusoidal current into the grid in phase with grid voltage in order to achieve unity power factor. The stability of the control algorithm is demonstrated by tools of Lyapunov analysis. Simulations show that the proposed controller system completely accomplishes listed aims even under atmospheric conditions variation. The performance of the proposed controller has been validated by numerical simulation in MATLAB SIMULINK.
Keywords:	PV grid-connected system, backstepping technique, MPPT, power factor, Lyapunov stability
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	LIQUID LEVEL DETECTION SYSTEM WITH A LABVIEW BASED PC USING AN ELECTROMAGNETIC DISPLACEMENT SENSOR
Author:	ZAKARYAE.EZZOUINE, ABDELRHANI.NAKHELI
Abstract:	The purpose of presented paper is to demonstrate an innovative dynamic system operating in real time for low cost that allows liquid level Monitoring. The system is based on an electromagnetic sensor for detecting water level by measuring the distance between water surface and the submerged part of the displacer of sensor .The system was implemented with a PC running National Instruments via the NI-USB-6281 data acquisition device. Where we have developed a graphical user interface (GUI) by utilizing LabVIEW software, for acquire and monitor the information obtained by the sensor and displaying the liquid level accurately at distances up to 65 centimeters. By this method we can measure the variations of water ranges between 1mm and 5mm.
Keywords:	Liquid Level Detection, Electromagnetic displacement Sensor, Indicator glass displacer, LabVIEW, Data Acquisition, Graphical User Interface (GUI)
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	A POWER DISTRIBUTION NETWORK RESTORATION VIA FEEDER RECONFIGURATION BY USING EPSO FOR LOSSES REDUCTION
Author:	N. F. NAPIS, M. F. SULAIMA, R. M. ARIF R. A. YUSOF, A. F. A. KADIR, M. F. BAHAROM
Abstract:	This paper deals with 16kV and 33kV Service Restoration via Distribution Network Reconfiguration (DNR) by using hybridization algorithm called as Evolutionary Particle Swarm Optimization (EPSO). The main objectives of this study are to restore as many loads as possible by transferring loads in the out of service areas to other distribution feeders via the system of changing the status of normally close and open switches which is known as Distribution Network Reconfiguration (DNR). Apart from that, this study manages to analyze the difference of losses reduction and improving the voltage profile respectively. A detailed performance analysis is carried out in 16 and 33-bus systems demonstrate the effectiveness of the EPSO method in MATLAB environment. The results are presented and compared with the Particle Swarm Optimization (PSO) algorithm and the original network. EPSO method has shown a good performance as the confirmations for the success of this optimization with has the least power losses and a better improvement in the voltage profile compared to PSO and original network. This advantage will help to solve power loss problem in the electrical power system as well as increasing the efficiency of the real distribution system.
Keywords:	Distribution Network Reconfiguration, Service Restoration, voltage profile, power losses, Evolutionary Particle Swarm Optimization
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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Title:	DESIGNING APPROACH OF AN INTRUDER REALTIME UBIQUITOUS EMBEDDED SURVEILLANCE SYSTEM
Author:	MOFTAH HMAID, NASEER SABRI, M.S. SALIM, R. BADLISHAH
Abstract:	As an essential constituent of many associations’ security and safety precedence, video surveillance has established its importance and benefits numerous times by providing immediate supervising of possessions, people, environment and property. This paper deals with the design approach of an Embedded Real-Time Surveillance System Based Raspberry Pi SBC for Intruder Detection that reinforces surveillance technology to provide essential security to our life and associated control and alert operations. The proposed security solution hinges on our novel integration of cameras and motion detectors into web application. Raspberry Pi operates and controls motion detectors and video cameras for remote sensing and surveillance, streams live video and records it for future playback. This research is focused on developing a surveillance system that detects strangers and to response speedily by capturing and relaying images to admin office based wireless module and thus activate the alert system both at intruder location and office admin. We will use the Smart Surveillance System Using Raspberry Pi presents the idea of monitoring the particular place in a remote area. The system can be administrated by a remote user from any networked workstation. The proposed solution offers efficient stand alone, flexibility to upgrade and cheap development and installation as well as cost effective ubiquitous surveillance solution.
Keywords:	Embedded System, Raspberry PI, Surveillance System, Motion Detection
Source:	Journal of Theoretical and Applied Information Technology 20^th September 2015 -- Vol. 79. No. 2 -- 2015
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