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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 June 2011 | Vol. 28. No.2

Paper ID:	14299 -JATIT
Title:	THE OPTIMAL DIRECT TORQUE CONTROL OF A PMSM DRIVE: FPGA-BASED IMPLEMENTATION WITH MATLAB & SIMULINK SIMULATION.
Author:	BADRE BOSSOUFI, MOHAMMED KARIM, SILVIU IONITA, AHMED LAGRIOUI
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	In this paper, we present a new contribution of FPGAs (Field-Programmable Gate Array) for control of electrical machines. A detailed description of the structure of direct torque control for PMSM drive, a bench test was realized by a prototyping platform, the experimental results obtained show the effectiveness and the benefit of our contribution and the different steps of implementation for the control FPGA
Keywords	FPGA, Direct Torque Control (DTC), Permanent Magnet Synchronous Machine (PMSM), reusability, DSP, ADC
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Paper ID:	14286 -JATIT
Title:	CRITICAL SUCCESS AND FAILURE FACTORS OF ERP IMPLEMENTATIONS: TWO CASES FROM KINGDOM OF SAUDI ARABIA
Author:	AHAMD ALDAMMAS, ABDULLAH S. AL-MUDIMIGH
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	Every year, the number of high-profile ERP (enterprise resource planning) project failures in the IT industry are normalized, failures that burn through mountains of cash, bring company operations to a standstill, generate bad publicity for vendors and toss careers in the trash. This paper is a comprehensive description of how critical success and failure factors impact the implementation of two major ERP systems. In this paper we have covered some ERP systems and its major components more over we have addressed some critical success and failure factors in detail. Two case studies have been presented and mapped these critical factors with successful results. Finally we have presented a priority model to learn how these factors must be taken before starting such ERP systems.
Keywords	ERP, Critical Success factor, Critical Failure Factor, Integration, Organization.
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Paper ID:	14216 -JATIT
Title:	AN INTEGRATED BLOCK AND STREAM CIPHER APPROACH FOR KEY ENHANCEMENT
Author:	MANIKANDAN.G, MANIKANDAN.R, RAJENDIRAN.P, KRISHNAN.G, SUNDARGANESH.G
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	In the world of digital data transaction, in order to transact the data in a more secured manner the need for a cryptographic algorithm cannot be compensated by others. There are huge numbers of cryptographic algorithms which makes the system resistant from the attacks of intruders and eavesdroppers.RivestCipher4 and Blow fish are the cryptographic algorithms which are very well known for their performance, simplicity, strong key generation. In this paper, we propose a method of combining block and stream cipher for increasing the key strength so that it will be very hard for the intruder to break the key and intruder will have no idea about the key formation from the combination of block and stream cipher. So it will lead to increased key complexity which obviously results the intruder nothing else than confusion and frustration.
Keywords	Blowfish, Cryptography, Encryption, Key strength, Key complexity, Rc4 algorithm
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Paper ID:	14302 -JATIT
Title:	FPGA IMPLEMENTATION OF SCALABLE BANDWIDTH SINGLE CARRIER FREQUENCY DOMAIN MULTIPLE ACCESS TRANSCEIVER FOR THE FOURTH GENERATION WIRELESS COMMUNICATION
Author:	DHIRENDRA KUMAR TRIPATHI, S. ARULMOZHI NANGAI, R. MUTHAIAH
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	In this paper, design and implementation of 4G SC-FDMA transceiver on FPGA is done and explained. Long Term Evolution (LTE) is next generation mobile communication standard from 3GPP, it is based on OFDMA) in Downlink Transmission and SC-FDMA in uplink Transmission. SC-FDMA is based on Frequency Division Multiple Access scheme. When compared with other multiple access scheme, it deals with the multiple users in a shared communication systems. SC-FDMA is also called as linearly pre-coded OFDMA, in the sense it has the additional discrete time Fourier transform (DFT) processing in SC-FDMA. The main advantage of SC-FDMA over OFDMA is low Peak to average power ratio, so the power transmission is low when compared. This work proposes a run time reconfiguration architecture for the SC-FDMA. Where the bandwidth and sub carrier mapping schemes of SC-FDMA can be changed. Real time FPGA implementation results are captured in the Chipscope Pro Embedded Logic analyzer.
Keywords	Orthogonal Frequency Division Multiple Access(OFDMA), Single Carrier-Frequency Division Multiple Access (SC-FDMA), Long Term Evolution (LTE), Discrete time Fourier transform (DFT)
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Paper ID:	14301 -JATIT
Title:	CONTENT BASED IMAGE RETRIEVAL USING LOCAL DERIVATIVE PATTERNS
Author:	P.V. N. REDDY, K. SATYA PRASAD
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	A new image indexing and retrieval algorithm known as local derivative pattern (LDP_16_2) is proposed in this work. LDP_16_2 histograms are used as features of each image in the data base. LDP_16_2 encodes the higher order derivative information which contains more detailed discriminative features. This property made it a powerful tool for feature extraction of images in the data base. Improved results in terms of retrieval efficiency and computational complexity are observed over recent work based on LBP_16_2 (Local Binary Patterns) features based CBIR system and LBP correlogram features based CBIR system.. The distance measures viz. city block distance, Euclidean distance, Canberra distance and d12 distance are used as similarity measures in the proposed CBIR system. Superiority of d12 distance is observed over other distances in terms of average retrieval rate.
Keywords	High Order Local Patterns, Texture, Local Derivative Patterns (LDP_16_2), Local Binary Patterns (LBP_16_2), Image Retrieval, Histogram.
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Paper ID:	14290 -JATIT
Title:	CHARACTER IDENTIFICATION IN VIDEOS USING IRIS RECOGNITION
Author:	RAMYA G , VIDHYALAKSHMI J , Dr.A..UMAMAKESWARI
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	In Character based browsing which is predominant in films, the identification of speaking faces plays a vital role. After identifying the speaking face, clustering of those faces is a difficult task. The difficulty is in extracting the exact speaking faces and clustering them. In the existing techniques, lip movement of a character is taken as Region Of Interest (ROI) for identifying the faces in the films. For clustering those faces, the k-means clustering technique is used. By using the above technique, retrieval of speaking faces cannot produce an accurate result. So, in this paper, lip movement as ROI and IRIS recognition for clustering of speaking faces are used. This paper proposes a mechanism to generate precise results by comparing with the existing techniques.
Keywords	Speaking face identification, ROI, lip alignment, IRIS, PCA
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Paper ID:	14150 -JATIT
Title:	FUZZY OPTIMIZATION FOR SPEED CONTROLLER OF AN INDIRECT VECTOR CONTROLLED INDUCTION MOTOR DRIVE USING MATLAB SIMULINK
Author:	ANGGUN ANUGRAH, ROSLI OMAR, MARIZAN SULAIMAN, AZHAR AHMAD
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	The aim of this paper is to investigate the performance of a Fuzzy-Logic-Controller (FLC) which is applied on three-phase induction motor drive system for high-performance industrial applications. In this paper, the FLC is used as a speed controller to replace the conventional PI speed controller. The FLC will determine the time of switching on the Space Vector Pulse Width Modulation (SVPWM) inverter that supplies power to drive the induction motor considering variable direct and quadrature axis inductances. The performance of the suggested technique has been simulated and developed using MATLAB/ SIMULINK for dynamic operating condition, such as certain change in command speed, and step change in load. The simulation result shows the feasibility of the proposed technique in order to improve the speed response and low torque ripple on three phase induction motor drive.
Keywords	Field Oriented Control, Fuzzy Logic Controller, Space Vector PWM, Induction Motor
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Paper ID:	14298 -JATIT
Title:	ANALYSIS OF MOBILITY PARAMETERS EFFECT ON POSITION INFORMATION INACCURACY OF GPSR POSITION-BASED MANET ROUTING PROTOCOL
Author:	RAED ALSAQOUR, MOHAMAD SHANUDIN, MAHAMOD ISMAIL, MAHA ABDELHAQ
Source:	Journal of Theoretical and Applied Information Technology Vol 28. No. 2 -- 2011
Abstract	Position-based routing protocols have become more popular in Mobile Ad hoc network (MANET) due to their advantages in using geographical position information of the nodes to route the data packet to the destination node. Each node periodically sends their geographical position information to its neighbors using beacon packets. Data packet routing in position-based routing protocol uses neighbors’ position information, which is stored in the node’s neighbors list and the destination node’s position information stored in the routing data packet header field to route the data packet from source to destination. Most of the current work in position-based routing protocols assumes that position information in the node’s neighbors list for its neighbors is accurate, while in reality, only a rough estimate of this position information is available for the nodes. This paper provides analysis study to realize the effect of position information inaccuracy caused by different mobility parameters on Greedy Perimeter Stateless Routing (GPSR) position-based routing protocol. In general, inaccuracy occurs when inexact position information is used. However, the results from the analysis work shown that the node beacon packet interval-time and node speed mobility parameters have a high impact on position information inaccuracy and have an intense effect in degrading the performance of GPSR protocol in terms of average end-to-end delay, non-optimal route, false local maximum, and routing loop.
Keywords	Mobile Adhoc Network (MANET), Greedy Perimeter Stateless Routing (GPSR), Beacon Packet Interval-Time, Node Speed
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