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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 2011 | Vol. 31 No.1

Paper ID:	14432 -JATIT
Title:	SECURED OPEN SOURCE WEB BASED HELPDESK SYSTEM
Author:	HASNAN OTHMAN, DALBIR SINGH
Source:	Journal of Theoretical and Applied Information Technology pp 01 - 04 Vol 31. No. 1 -- 2011
Abstract	Secured Open Source Web Based Helpdesk System is a helpdesk management system for the Secured Mail Unit, Malaysian Ministry of Foreign Affairs. It is an online system which was developed to facilitate and manage the incoming complaints from various users in the Malaysian governmental ministries. Previously, it was performed manually by using a log book and jobs were assigned based on the log book’s records. This system was developed using PHP as the primary programming language and MYSQL as the database. Three categories of users had been created to manage the system: normal user, supervisor and admin. Every categories of user has their own responsibilities and privileges in accessing the system. The security features such as MD5 for message digest algorithm is one of the functionalities used to secure the saved password in plain text to an encrypted form which cannot be easily interpreted. It works by applying the cryptographic hash function which uses the 128 bit hash value. This functionality had been employed in a wide variety of secured applications and commonly used to check the data integrity. This system is capable to record all the complaints received, show the status of the complaints and monitor the progress of each complaint. It will segregate and distribute the incoming requests to the technical support staffs and their respective supervisors based on each team’s capabilities. Besides that, it is also generates report periodically that supports managerial decision making process.
Keywords	Helpdesk System, Decision Support System, Management Information System, Malaysian Government
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Paper ID:	14223 -JATIT
Title:	A GENERALISED SPACE TIME SUM-OF-SQUARES SELECTION SCHEME FOR ALAMOUTI MIMO SYSTEMS USING MPSK MODULATION ScHEME
Author:	N.SATHISH KUMAR, Dr.K.R. SHANKAR KUMAR
Source:	Journal of Theoretical and Applied Information Technology pp 05 - 09 Vol 31. No. 1 -- 2011
Abstract	Multiple-antenna systems are currently enjoying increasing popularity and widespread applications in which, it can improve the capacity and reliability of wireless receiver section. MIMO systems utilize multiple antennas to increase the diversity gain of wireless communication systems. Space Time Block Coding (STBC) is a MIMO-based algorithm, which efficiently exploits spatial and temporal diversity. In this paper , the analytical results for the bit error rate (BER) of M-ary Phase Shift Keying(MPSK) in a slow ,flat Rayleigh fading channel for a multiple-input multiple-output (MIMO) system using an Alamouti transmission scheme and Maximal Ratio Combining scheme is studied and simulated using matlab tool box.This paper analyses the performance of Generalized Space-time sum of squares (GSTSoS) receiver section scheme. The simulation results show that as the number of receivers is increased the Bit Error Rate(BER) of the system is decreased.
Keywords	Multiple-Input Multiple-Output (MIMO), Log Likely Ratio (LLR) Selection, Maximal Ratio Combiner(MRC), Signal To Noise Ration (SNR), Space–Time Sum-Of-Squares (Stsos) Selection
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Paper ID:	14419 -JATIT
Title:	OBJECT-ORIENTED PROGRAMMING SEMANTICS REPRESENTATION UTILIZING AGENTS
Author:	TEH NORANIS MOHD ARIS
Source:	Journal of Theoretical and Applied Information Technology pp 10 - 20 Vol 31. No. 1 -- 2011
Abstract	Comprehending Object-Oriented Programming (OOP) is not an easy task especially by novice students. The problem occurs during the transition from learning fundamental programming language concept to OOP concept. It is very important to handle this problem from the beginning before novices learn more advanced OOP concepts like encapsulation, inheritance, and polymorphism. Learning programming from source code examples is a common behavior among novices. Novices tend to refer to source codes examples and adapt the source codes to the problem given in their assignments. To cater the problems faced by these novices, a novel agent-based model have been designed to assist them in comprehending OOP concepts through source codes examples. The instructor needs to provide two related source codes that are similar but in different domain. Generally, these source codes go through the preprocessing, comparison, extraction, generate program semantics and classification processes. A formal algorithm that can be applied to any two related Java-based source codes examples is invented to generate the semantics of these source codes. The algorithm requires source codes comparison based on keyword similarity to extract the words that exist in the two related source codes. Three agents namely SemanticAgentGUI, semanticAgent and noviceAgent are designed in the proposed model. The running system shows an OOP semantic knowledge representation by intelligent agents
Keywords	OOP Semantics, Source Codes Comparison, Keyword Similarity, Extraction, Classification
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Paper ID:	14376 -JATIT
Title:	DISCRETE LINEAR PREDICTIVE CONTROL OF PERMANENT MAGNET SYNCHRONOUS MOTOR (PMSM)
Author:	A. LAGRIOUI, H. MAHMOUDI, B.BOUSSOUFI
Source:	Journal of Theoretical and Applied Information Technology pp 21 - 28 Vol 31. No. 1 -- 2011
Abstract	This paper presents a discreet linear predictive control (DLPC). This strategy is applied to permanent magnet synchronous motor (PMSM) for monitoring the speed at trajectory and rejection of disturbance. The predictive control law is obtained by using a cost function and a Taylor series to perform prediction in a finite horizon. No information on the external disturbances and uncertainty parameters are necessary to ensure the robustness of the proposed strategy. Furthermore, in order to maintain the current phase within the saturation we used a cascade structure with a block anti-windup. Simulation results demonstrated the stability, robustness and effectiveness of control strategy proposed for the trajectory tracking and disturbance rejection of torque
Keywords	Discrete Linear Predictive Control (DLPC) – Model Predictive Control (MPC) , Permanent Magnet Synchronous Motor (PMSM)
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Paper ID:	14236 -JATIT
Title:	4 G- FOURTH GENRERATION WIRELESS SYSTEMS REQUIREMENTS AND TECHNICAL CHALLENGES
Author:	ROMEN KUMAR.M, AJITH SINGH.N, VASANTHI.V, BHARATHI.B, M.HEMALATHA
Source:	Journal of Theoretical and Applied Information Technology pp 29 - 40 Vol 31. No. 1 -- 2011
Abstract	Fourth generation wireless systems(4G) are likely to reach the consumer market in another few years.4G comes with the promise that it will increased bandwidth, higher speeds ,greater interoperability across communication protocols, user friendly, innovative and secure applications. In this article I list out some requirements of the 4G systems only by considering the needs of the user in the future. These requirements can be applicable if technical and business challenges can be overcome. The technical challenges include mobility management, quality of services, interoperability, high data rate, security, survivability, spectrum, intelligent mobile devices, middleware, and networks access
Keywords	4G, 3G, Migration, Wireless, Bandwidth, Security
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Paper ID:	14335 -JATIT
Title:	COMPUTATIONAL ANALYSIS ON ZINC DATABASE AGAINST ALDOSE REDUCTASE AS ANTI DIABETIC
Author:	NARESH BABU MUPPALANENI, ALLAM APPA RAO
Source:	Journal of Theoretical and Applied Information Technology pp 36 - 41 Vol 31. No. 1 -- 2011
Abstract	Effort to apply computational power to the combined chemical and biological space in order to streamline computer aided drug discovery and development is the spirit of scientific method. India is a world capital of diabetes. Immediate attention is required for the development of a novel drug for diabetes. Though Type 2 Diabetes has many drugs, it lacks 100% effective cure. The drug design is mainly based on target identification, protein-ligand interactions and the active site residues. An investigation has been carried out to study the mode of binding as well as the affinities of drug-like compounds for 1AH3(aldose reductase)from ZINC database(a free database for virtual screening) as anti-diabetic agents by performing protein – ligand interactions using various docking software.
Keywords	Computer Science, Bioinfomratics, Diabetes, Aldose Reductase, Zinc Database, Anti Diabetic Agents
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Paper ID:	14343 -JATIT
Title:	IMPLEMENTING A VIRTUAL LEARNING ENVIRONMENT (VLE) IN A HIGHER EDUCATION INSTITUTION: A CHANGE MANAGEMENT APPROACH
Author:	AREEJ A. ALHOGAIL ABDULRAHMAN A. MIRZA
Source:	Journal of Theoretical and Applied Information Technology pp 42 - 52 Vol 31. No. 1 -- 2011
Abstract	Many universities around the world are investing in implementing different Virtual Learning Environments (VLEs) to support the teaching and learning process. However, without an effective implementation, many objectives and advantages are unachieved. Therefore, a well designed strategy to follow is vital to the success of an effective implementation. There has not been that much attention in the literature of how to support and manage the change to a successful implementation of such technologies. This paper presents a suggested framework of an implementation plan for a VLE in a higher education institution. Discussion focuses on the need for an effective approach to change management that is flexible and able to vary in pace according to the needs of users. The framework is developed based on the e-learning change management literature and that and on the review of the literature which is based on the experience of a number of universities around the world. The paper also presents an investigation and identification of the main reasons behind resistance to change to the acceptance and adoption a VLE in higher education institutions
Keywords	VLE, E-learning, Change Management, Higher Education, Change Resistance
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Paper ID:	14281 -JATIT
Title:	SPACE TIME FREQUENCY CODED (STF) OFDM FOR BROADBAND WIRELESS COMMUNICATION SYSTEMS
Author:	K.THENMOZHI, VAMSI KRISHNA KONAKALLA, SP PRANEETH VABBILISETTY, RENGARAJAN AMIRTHARAJAN
Source:	Journal of Theoretical and Applied Information Technology pp 53 - 59 Vol 31. No. 1 -- 2011
Abstract	The current problems in wireless systems are multi-path propagation, frequency selective fading, Inter-Symbol Interference (ISI) and Inter-Carrier Interference (ICI), with the major challenge being transmission of information having high data rates over long distances. The Orthogonal Frequency Division Multiplexing (OFDM) systems solve a few of the above stated problems by the use of diversity schemes, which increase the reliability and security of the message. By adopting Multiple-Input Multiple-Output (MIMO) and OFDM technologies, wireless systems could reach data rates up to several hundreds of Mbps and achieve spectral efficiencies of several tens of bits/Hz/s, which are unattainable for conventional Single-Input Single-Output (SISO) systems. This paper deals with the simulation of Space Time Frequency (STF) coded OFDM system. The coding schemes like Space Time (ST), Space Frequency (SF) and Space Time Frequency (STF) coding are compared and from the results it is proved that STF scheme performs better than ST and SF schemes. The Space Time Frequency coded communication system when is used along with diversity schemes like MIMO and Multiple Input Single Output (MISO) is compared for their performance over a fading channel having inherent noise, and it is further proved that MIMO performs better than MISO schemes.
Keywords	Orthogonal Frequency Division Multiplexing (OFDM), Multiple-Input Multiple-Output (MIMO), Multiple-Input Single-Output (MISO), Space Time (ST), Space Frequency (SF), Space Time Frequency (STF)
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Paper ID:	14349 -JATIT
Title:	THE RELATIONSHIP BETWEEN ORGANIZATIONAL INTELLIGENE AND STRATEGIC THINKING
Author:	NOUR-MOHAMMAD YAGHOUBI (PHD), SEYED MOHAMMAD SADEQ KHAKSAR, FATEMEH AFRASIABI, FATEMEH SHAKHSIAN
Source:	Journal of Theoretical and Applied Information Technology pp 60 - 73 Vol 31. No. 1 -- 2011
Abstract	Although strategic thinking is so important in strategic management, actually its role in the Organizational Vision Designing remains unrealized and vague. The element that would pave the way of better understanding this phenomenon is Organizational Intelligence. In a comprehensive definition can be said that strategic thinking is organization architecture and using of the employees’ individual intelligence. The aim of this paper is studying on the impact of Organizational Intelligence on Strategic Thinking and identifying the relationship between dimensions of these two variables. Hypotheses have been proposed in the form of a conceptual model and results achieved by using Structural Equation Modeling (SEM) methodology. In this case, we used the Albert’s model to determine dimensions of Organizational Intelligence and the Liedtka’s model for dimensions of strategic thinking he results show that these variables are associated together. Therefore, to improve Strategic objectives in organizations it is recommended that senior managers should consider the linkage (relation) of these two variables.
Keywords	Organizational Intelligence, Strategic Thinking, Structural Equation Modeling, IRAN
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Paper ID:	14362 -JATIT
Title:	RELIABILITY ANALYSIS OF PROGRAMS IN THE DISTRIBUTED COMPUTING ENVIRONMENT
Author:	R.SEETHALAKSHMI, K.S.RAVICHANDRAN
Source:	Journal of Theoretical and Applied Information Technology pp 74 - 79 Vol 31. No. 1 -- 2011
Abstract	Reliability is an important aspect in the distributed system studies and developments. Distributed processes are an instance of a running program, which are either concurrent or parallel. The distributed processes exhibit more dynamism. The processes also have peculiar characteristics like message passing, load sharing, fault tolerance, fault resilience and recovery. The program reliability analysis encounters a variety of distributed programs. These programs reside in several nodes. Each program has a composite structure. The functions and data are composite. In order to perform reliability analysis of distributed programs the programs are run in the distributed computing environment. Studying and analyzing the programs derive the configuration of the programs by reduction. The program code is read and analyzed by the analyzer program. The program flow is checked. Then the appropriate program flow graph is derived. It is then classified into one of serial configured, parallel configured program or mixed configured program. Once configured, the system can be evaluated perfectly. Reliability of such a system can be easily evaluated by taking into account the reliability of independent components.
Keywords	Reliability, Serial Configuration, Parallel Configuration, Mixed Configuration, Program Reliability.
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