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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
July 2014 | Vol. 65 No.2

Title:	DYNAMIC SENSOR RELOCATION TECHNIQUE BASED LIGHT WEIGHT INTEGRATED PROTOCOL FOR WSN
Author:	J.JOY WINSTON, Dr.B.BALAN PARAMASIVAN
Abstract:	In the past few years, it is observed and noticed that we are utilizing Wireless Sensor Networks with greater interest for various popular and crucial applications. It represents an emerging set of technologies that will have profound effects across a range of Medical, Industrial, Scientific and Governmental Applications. This Wireless Sensor Network is made up of a group of Sensor Nodes or Devices and each device possesses the ability to monitor some aspect of its environment and each is able to communicate its observations through other devices to a destination where data from the network is gathered and processed further for our requirements. Sensor Nodes are operating autonomously even in unattended environments and potentially in large numbers and that too we could not be deployed manually in a hostile or harsh environment. Hence, we could deploy randomly those large numbers of Sensors in Hostile / Harsh Environment and it leads coverage issue, which is leading to connectivity loss and moreover, sometimes, the Sensor Nodes may failure which too causes Connectivity Loss and hence for sensitive services we couldn’t use this. Thus, while deploying Sensor Nodes for sensitive services, we need to focus both the Coverage and Connectivity. As we are unable to deploy Sensors manually, the Sensor Relocation Scheme had proposed earlier, where the Sensors themselves moving towards required position to make proper Coverage and Connection. As it is one of the smartest techniques, this research work has studied Dynamic Sensor Relocation Scheme thoroughly and implemented. From our experimental results, we noted that this work achieves good coverage when Nodes getting failure or becoming communication holes. But however this approach consuming more Energy for continuous migration, which minimizes the lifetime of Sensor Networks. And also it is identified that, this approach fails to focus Connectivity issue due to node migration and Secured Communication too, which may compromise our collecting data. To address these serious issues, this research work has proposed an efficient Dynamic Sensor Relocation Technique based Lightweight Integrated Protocol(LIP), which is addressing Secured Coverage, Connectivity, Communication and urity. We have implemented our proposed work and studied thoroughly.
Keywords:	Coverage, Connectivity, Energy Efficiency, Key Management and Sensor Relocation, and Topology ControlS
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	MODELING AND REAL-TIME DSK C6713 IMPLEMENTATION OF NORMALIZED LEAST MEAN SQUARE (NLMS) ADAPTIVE ALGORITHM FOR ACOUSTIC NOISE CANCELLATION (ANC) IN VOICE COMMUNICATIONS
Author:	AZEDDINE WAHBI, AHMED ROUKHE, LAAMARI HLOU
Abstract:	In this paper a module consisting of a Normalized Least Mean Square (NLMS) filter is modeled, implemented and verified on a digital signal processor (DSP) TMS320C7613 to eliminate acoustic noise, which is a problem in voice communications. However the acoustic noise cancellation (ANC) is modeled using digital signal processing technique especially Simulink Blocksets. The main scope of this paper is to implement the module onboard an autonomous DSK C6713 in real time, benefiting to the low computational cost and the easy implementation using Simulink programming. The needed DSP code is generated in code composer environment under Real Time Workshop. At the experimental level, implementation phase results verify that implemented module behavior is similar to Simulink model.
Keywords:	Adaptive Algorithm, Acoustic Noise Cancellation (ANC), Real Time Implementation, Digital Signal Processing, DSK C6713.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	HYBRID OPTIMIZATION ALGORITHM FOR GEOGRAPHIC ROUTING IN VANET
Author:	A. TAMIZHSELVI, R. S. D. WAHIDA BANU
Abstract:	Vehicular Ad-hoc Networks (VANETs) developed rapidly in the last decade which is widely used to improve safety and traffic efficiency. VANET is an active research, standardization and development area due to its potential to improve vehicle and road safety, traffic efficiency, and convenience keeping in mind drivers and passengers comfort. Though VANETs geographic routing was recently emphasized, developing such networks multi-hop communication is challenging because of changing topology and network disconnections leading to Mobile Ad-hoc NETwork (MANET) routing protocols failures and inefficiency. This study proposes hybrid Particle swarm Optimization (PSO) with Broyden-Fletcher-Goldfarb-Shanno to improve the efficiency of Geographical Routing Protocol (GRP). Simulation results demonstrate that the proposed modified GRP using Hybrid PSO with BFGS, effectively improves the packet delivery ratio, and reduces the end to end delay.
Keywords:	Particle Swarm Optimization (PSO); Broyden-Fletcher-Goldfarb-Shanno (BFGS); Geographical Routing Protocol (GRP); Vehicular Ad-hoc NETworks (VANETs)
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	A NOVEL PROTECTION GUARANTEED, QoT AWARE RWA ALGORITHM FOR ALL OPTICAL NETWORKS
Author:	K .RAMESH KUMAR, R.S.D.WAHIDA BANU
Abstract:	All optical transparent networks carry huge traffic and any link failure or failure to restore the link failed lightpath can cause loss of gigabits of data; hence guaranteed protection becomes necessary at the time of failure. Many protection schemes were presented in the literature, but none of them speaks about protection guarantee. Also, in all optical networks, due to non availability of regeneration capabilities, the physical layer impairments due to optical fibers and components accumulates along the lightpaths (LP) which causes sharp degradation of the Quality of Transmission (QoT), as measured by signal bit error rates (BER) , which is a dominating factor for blocking probability(BP) of transparent optical networks. The problem of protection with QoT issues was rarely studied in the literature. In this work, a novel protection backup path guaranteed, QoT aware Routing and Wavelength Assignment (RWA) Algorithm called “Virtual Lit –Exhaustive Highest Q factor” (V-Lit EHQ) is presented which exhibits desirable qualities for reliable network operation. The proposed scheme possesses the merits and excludes the demerits of Lit and Dark protection schemes. The results of the proposed work are compared with the standard QoT aware versions of the Shortest Path-First Fit schemes for both lit and dark protection. The BP, Vulnerability ratio (VR), and BER, are taken as the performance metrics and the proposed algorithm found to be outperforming in all metrics as shown through simulations.
Keywords:	Routing and Wavelength Assignment, Path Protection, QoT, Physical layer impairments, Blocking probability
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	MVC BASED NORMALIZATION TO IMPROVE THE CONSISTENCY OF EMG SIGNAL
Author:	M.I SABRI, M.F MISKON, M.R YAACOB, ABD SAMAD HASAN BASRI, YEWGUAN SOO, W.M.BUKHARI
Abstract:	Electromyography (EMG) is a study of muscle function through analysis of electrical activity produced from specific muscle of interest. This electrical activity which is displayed in form of signal as the manifestation of neuromuscular activation associated with muscle contraction. The most well-known technique of EMG signal recording are by using surface (non-invasive) and needle/wire (invasive) electrode. This research focus on surface electromyography (sEMG) signal. During sEMG recording, there are several problems had to be encountered i.e. noise, motion artifact, signal instability, cross talk and signal inconsistency. Inconsistency here refers to the variation of the quantity of EMG features with respect to the quantity of force produce by the muscle. In addition, inconsistency of features to force mapping occurs across different person as well as across different reading of an individual. Inconsistency is due to muscle strength and size, cross talk, signal to noise ratio (SNR), signal bandwidth and fatigue condition. Inconsistency causes nonlinearity or linearity relationship between features to force mapping. Previous method introduce to solve the inconsistency across different reading of an individual but the problem lies on reading across different person. Thus, this paper presents a method to solve the inconsistency of EMG signal across different person by normalizing the EMG based on percentage of maximal voluntary contraction adaptive with muscle endurance (pre-fatigue), %MVCPF. This method is based on a hypothesis that Integrated EMG (IEMG), Mean Absolute Value (MAV), Root Mean Square (RMS), Sum Square Integral (SSI) and standard deviation features are directly proportional to %MVCPF of all person. There are 2 indicator to measure the inconsistency problem which are p-value must be less than 0.05 and the root mean square error of regression must be less than 10%. The results show that p-value of each person signal after normalizing is 0.0126 which is less than 0.05. In addition, the results for root mean square error of regression show IEMG, MAV, RMS, SSI and standard deviation features are less than 10%. These shows the improve normalizing method give the better results to solve inconsistency reading problem across different person. For the conclusion, an objective which is to solve inconsistency features to force mapping issue of different person successful solve.
Keywords:	Surface Electromyography (sEMG), Feature Extraction, Nonlinear, ANOVA, MVCPF
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	IMPLEMENTATION OF INTELLIGENT CONTROL STRATEGIES ON CURRENT RIPPLE REDUCTION AND HARMONIC ANALYSIS AT THE CONVERTER SIDE OF THE INDUSTRIAL INVERTERS AND TRADEOFF ANALYSIS
Author:	R.SAGAYARAJ, Dr. S.THANGAVEL
Abstract:	This paper presents a trade-off analysis among different intelligent control based resistance emulation techniques. Resistance emulation, which is the consequence of the current ripple reduction and harmonic reduction, is developed with intelligent control on different Pulse Width Modulation (PWM) techniques. In industrial drives, the harmonic reduction has been carried out using different PWM techniques in the inverter side of the drives, but this paper deals the harmonic current ripple reduction in the converter side of the electrical drives. The three-phase induction motor is connected as load to the boost converter for this analysis. Traditional PI controller based active resistance emulation is compared with the Fuzzy Logic Controller (FLC) and ANFIS controller based emulator. The analysis that would suggest the trade-off on the performance of each of this technique gives guidelines to select on which technique to be adopted at what situation. MATLAB / Simulink based simulation is carried out and the results are tabulated for the comparison purposes. The parameter for comparison is the current ripples and the Total Harmonic Distortion (THD). The simulation results show the effectiveness of the proposed method.
Keywords:	Adaptive Neuro-Fuzzy Inference System (ANFIS), Average Current Mode (ACM), Fuzzy Logic Controller (FLC), Pulse Width Modulation (PWM), Total Harmonic Distortion (THD)
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	IDENTIFYING A THRESHOLD CHOICE FOR THE SEARCH ENGINE USERS TO REDUCE THE INFORMATION OVERLOAD USING LINK BASED REPLICA REMOVAL IN PERSONALIZED SEARCH ENGINE USER PROFILE
Author:	P.SRINIVASAN AND K.BATRI
Abstract:	The search engine information over load reduction has been focused and presented in the paper. The replica of cluster content, hyperlinks and sub-hyperlinks in the personalized user profile have been removed to reduce the information overload. This has been carried out through a personalized search results against existing query cluster's method. It has been found that the user profile with replication has more information overload than non-replicated profile. The experimental result performed by Lingo algorithm with few threshold values after finding the word weight of all content and pre-processing. The result findings confirm that the negative impact on cluster content and positive impact over sub-hyperlinks at the same time and no impact on hyperlinks. In order to measure the performance , few choices of the threshold result findings have been confirmed for the better results. The student t-test is used for analysis, and it confirms that the variations before and after removal of cluster and link based replica content in all the threshold levels.
Keywords:	Cluster Content Sub-Hyperlinks Keyword User Profile Replica Hyperlinks Overload Search Engine
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	HYPERSPECTRAL FACE CLASSIFICATION IN WAVELET DOMAIN USING KNN CLASSIFIER
Author:	P.V.V.Kishore, A.S.C.S.Sastry, T.Krishna Murthy, B.Gowthami, P.Anjana
Abstract:	Hyperspectral face images present constructive information captured using a Hyperspectral camera compared to normal RGB camera capturing face images. Hyperspectral imaging is the collecting and processing of information from across the visible electromagnetic spectrum. Hyper spectral imaging deals with the imaging of narrow spectral bands over a continuous visible spectral range, and produces the spectra of all pixels in the scene. In this research face recognition experimentation is done in near infrared hyperspectral images. The recognition is accomplished on hyperspectral face database consisting of 47 test subjects created by Hong Kong Polytechnic University. The database images of hyperspectral faces were collected using a CCD camera equipped with a liquid crystal tunable filter to provide 33 bands over the near-infrared (0.7_m-1.0_m). Experiments were conducted to demonstrate that this simple algorithm can be used to recognize faces that changes in facial pose and expression over time.
Keywords:	Hyperspectral, Face Classification and Identification, Wavelet based Fusion, Principle Component analysis (PCA), Minimum Distance Classifier(KNN).
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	RELIABILITY ANALYSIS OF WEB SERVICES BASED ON RUNTIME FAULT DETECTION
Author:	K.JAYASHREE, DR. SHEILA ANAND, R. CHITHAMBARAMANI
Abstract:	Web service technology is being increasingly used for commercial business applications. Reliability of the web services provided is an important criterion to enable the wide spread deployment of such services. This paper proposes analyzing the reliability of web services based on runtime fault information. Monitoring of web service interactions enable runtime faults to be detected and recorded. A sample application was developed and logs were designed for recording the service usage and faults information. Faults were injected in the sample application and faults during publishing, discovery, binding, execution and composition were recorded. Reliability estimation and prediction was carried out using Jelinski-Moranda Binomial model and Goel-Okumoto Non-Homogenous Poisson model.
Keywords:	Reliability for web services, Monitoring Component, Fault Diagnoser, Fault Log, Service Usage Log, Reliability analysis.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	A SMART SCHEDULING SCHEME WITH VOICE ENHANCEMENT FOR VOICE SERVICES IN LTE
Author:	M. KARPAGAM, N.NAGARAJAN
Abstract:	Long Term Evolution (LTE) technology supports only packet based services. To facilitate better Quality of Service (QoS) for Voice packets, LTE has resorted to Circuit Switched Fallback (CSFB) approach to deliver voice services. However, the CSFB scheme has many disadvantages whichare discussed in detail in the later stages of the paper. In this paper, we propose a scheduling scheme with voice enhancement for effective delivery of voice services in LTE. The proposed scheme uses packet switching unlike the CSFB scheme which uses circuit switching to guarantee delivery of voice services, thereby, providing the network with the flexibility of resource allocation that is provided in the packet switching. Apart, the simulation results have demonstrated that the proposed scheme was able to achieve the same QoS delivery provided by the CSFB approach.
Keywords:	LTE, Voice Services, Scheduling, QoS, CSFB
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	PRIVACY ENHANCED PERVASIVE MODEL WITH DYNAMIC TRUST AND SECURITY IN HEALTHCARE SYSTEM
Author:	GEETHA MARIAPPAN AND MANJULA DHANABALACHANDRAN
Abstract:	In Pervasive environment privacy is foremost concern. In this paper proposed an intelligent mechanism for privacy preservation model using dynamic trust and security management techniques. The minimum required information without ambiguity to be extracted from the trusted store and is to be conveyed or exchanged to the trusted entities with in or outside the system as many times as possible in the right context during right session to enhance the privacy of the information. Here the issue is concurrency and asynchronous nature of the information that means the same information is to be retrieved by the number of entities at the same time during any session. So, the availability of the user information and displaying secret information in public centers will create a negative impact on some important users. To avoid this scenario we develop an intelligent system which can identify trusted entities and dynamically adopt a mechanism in relation with other contextual entities.
Keywords:	Privacy, Data Globalization, data Virtualization, Data embellishment, Pervasive
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	ACTIVITY CLASSIFICATION FRAMEWORK BASED ON PERSONALITY AND TIME SCALE
Author:	SITI SUHANA ABDULLAH, MOHD ROSMADI MOKHTAR, MOHD JUZAIDDIN AB AZIZ
Abstract:	A variety of activities input formally by a user such as data from a calendar application usage, contains cognitive information that can be predicted through an analysis of formal recorded activities. Although these data are static and rigid, they still contain information which facilitates in understanding activity tendencies for today’s computing requirement. This research aims to classify activity and develop an activity classification framework based on personality and time scale. The framework formation involves data collection, analysing and classifying activities based on total frequencies of the OCEAN personality model and the time scale identified. The testing phase involved 6 evaluators who evaluated and classified activities based on the OCEAN personality model framework and time scale. The OCEAN model contains various adjectives that have been categorized into five dimensions; namely Extraversion, Agreeableness, Conscientiousness, Neuroticism and Openness to Experience. These classifications are used and accepted in the field of psychology attributed to personality and character development. The average percentages evaluated by the evaluators are 26.7% (Extraversion), 1.6% (Neuroticism), 59.0% (Conscientiousness), 26.3% (Agreeableness) and 4.9% (Openness to Experience). The results show the capability of the framework classifying activity with the selection of the Conscientiousness dimension by 60% and Extraversion dimension by 40% as dominant dimensions. The results revealed that the activity classification framework based on personality and time scale is capable of classifying activity to the dominant personality dimension.
Keywords:	Cognitive Science, OCEAN Model, Activity Classification, Personality Dominant, Calendar Data
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	ROBUST VIDEO STEGANOGRAPHIC MODEL FOR BANKING APPLICATION BY CASCADING THE FEATURES OF SVD AND DWT
Author:	BOOPATHY. R , RAMAKRISHNAN. M. , VICTOR. S.P
Abstract:	Secret communication is attained by Steganography. Imperceptibility and Robustness are the two main imperative components of Steganography. This paper presents a new combined approach to improve the imperceptibility and robustness by cascading the features of Singular Value Decomposition (SVD) and Discrete Wavelet Transform (DWT). This proposed method show the effective usage of DWT and SVD for hiding the already encrypted secret text message which adds as another layer of security. The frame separation is done and 2D-DWT is applied on desired frames, we have chosen lower resolution approximation image (LL sub band) as well as (HL, LH) detail components for SVD transformation and embedding, low frequency approximate coefficients are properly used in this method which is different from other conventional methods. Results proved that original message is extracted without any loss and minimum distortion is noticed in the reconstructed video. High capacity is accomplished by taking the video and converting into frames for embedding. The Experimental results show that the proposed method is robust against various noise addictive attacks including Salt & Pepper noise, average PSNR and NC values are also maintained as 77db and 0.999 respectively for all the frames, it is noticed that the original and disturbed frames are almost identical. Finally comparison of the proposed method with other existing methods has been carried out.
Keywords:	DWT, LSB, Steganography, SVD, Wavelet decomposition
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	AN INTEGRATED MODEL FOR SECURE ON DEMAND RESOURCE PROVISIONING BASED ON SERVICE LEVEL AGREEMENT (SLA) IN CLOUD COMPUTING
Author:	ADNAN ABDULWAHED HASSAN, BASMA MOHAMADHASHIM BAI, TAGHI JAVDANI GANDOMANI
Abstract:	Cloud computing, as new paradigm of new century, provides various advantages and benefits for the organizations and individuals. Among them resource provisioning is a big advantage that supports cloud providers cloud resources with their users. Providing a secure way for resource provisioning is a critical issue, so that any neglect of it causes a lot of concerns for both providers and users. Service Level Agreement (SLA) defines the level of access to the resources providing in cloud environment. The main aim of this study is providing a model to integrate the common security policies and mechanisms with SLA. It proposed a security infrastructure for on-demand service provisioning.
Keywords:	Cloud Computing, Resource Provisioning, Service Level Agreement (SLA), Security, Secure Model
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	A NOVEL R-SIP CACHE CONSISTENCY MECHANISM FOR MOBILE WIRELESS NETWORKS
Author:	LILLY SHEEBA S, YOGESH P
Abstract:	In Mobile Adhoc NETwork (MANETs), caching of data items among mobile nodes have become an inevitable solution for fast information retrieval. However most of the research works focus on ensuring routing, security and research on maintaining cache consistency within MANETS. Here we focus on providing cache consistency in a mobile environment so as to increase the probability of retrieving up to date data from nearby caching nodes instead of from the server. In order, to ensure cooperative cache consistency we are going for updating the cache nodes using Registration based Server Initiated Push(R-SIP) mechanism where server maintains a registration table to maintain the details of all registered clients and updates those registered, by pushing the updated data, as and when the server gets refreshed. Here only registered clients that have registered are updated frequently, there by not compelling unregistered clients to receive the recently updated data. This cache consistency mechanism for cooperative caching ensures reduced bandwidth utilization, less query latency, besides decreasing network traffic and the communication overhead at the data server.
Keywords:	Cache Consistency, Cache Invalidation, Mobile Ad Hoc Networks, Registration Table.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	A TDMA-BASED SMART CLUSTERING TECHNIQUE FOR VANETS
Author:	Mr. J.JAYAVEL, Dr. R.VENKATESAN, Mr. S. PONMUDI
Abstract:	A vehicle’s on-road time since the last pit stop has to be taken into account while forming clusters using Vehicular Ad-hoc Networks (VANET). This is important so as to keep the vehicles at optimum driving conditions and to provide rest to the driver at regular intervals. To the best of our knowledge, no clustering scheme has considered this important practical issue while designing a routing protocol for VANET. In this paper, we present a dynamic and stable cluster-based MAC protocol with a more realistic selection metric that includes the vehicle's on-road time and position messages like relative speed, direction and connectivity among neighboring vehicles while giving priority to vehicles joining a cluster. Our proposed Travel Time Based Clustering Approach (TTCA) is based on a TDMA-based MAC scheme and has been simulated using OMNET++ and SUMO. The results express a significant improvement in terms of cluster stability and throughput against existing approaches.
Keywords:	Vehicular Ad hoc networks, Cluster, TDMA, OMNET++, SUMO
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	DATA COLLECTION USING MOBILE ROBOT IN WSN:A REVIEW
Author:	RAJARAM.P, PRAKASAM.P
Abstract:	Development of mass construction, the charge of sensor nodes has reduced significantly and resource-rich sensor nodes are organized with high-technology events, for example GPS. However energy is used to measure the capability of the battery for all sensor nodes, the energy attenuation of sensor node fallout in a dull mode that is not able to communicate with other nodes, this regulates a bottleneck in a WSN. To conquer the issue, a new data collection algorithm using a mobile robot from a wireless sensor networks, this is used to collect the sensed data. It observes the present sensed data collection techniques and provides a summary of the using mobile robot in wireless sensor networks and associated research work on this area. Also comparisons are done between the various schemes to explain the advantages and restrictions. The experimental evaluation is conducted with various aspects to show the enhancement and deployment of the sensed data collecting process in wireless sensor networks.
Keywords:	Data Aggregation, Data Collection, Mobile Computing, Mobile Robot, Wireless Sensor Networks, Sensor Network, Target Model.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	OPTIMUM DESIGN OF MULTIPLE WINDING INDUCTION MOTOR
Author:	S.S.SIVARAJU, V.CHANDRASEKARAN
Abstract:	Out of total electrical motors 80% are three-phase squirrel-cage induction motors which are widely used in industrial and domestic applications because of the relatively low cost and high reliability. When oversized, most of these motors operate in low efficiency and poor power factor. Adjustable flux motors with multiple winding connections can be an energy efficient solution in variable and fixed load applications, improving the efficiency and power factor by means of properly adapting motor flux to the actual load. In this paper, a design optimization method is proposed. The optimal design of a multi-flux stator winding to improve motor efficiency and power factor in a wide load range is proposed using Genetic Algorithm. This algorithm is a population-based search algorithm characterized as conceptually simple, easy to implement and computationally efficient. A parameter-less loss approach is incorporated in the proposed algorithm to handle the constraints effectively. A comparison of optimum design with the conventional design for a 2.2-kW three phase squirreal-cage induction motor is presented. It is demonstrated that the optimal design produce better efficiency over the entire load range including energy saving which is most suitable for industrial applications
Keywords:	Adjustable Flux, Energy Efficient, Multiflux Stator Winding, Less Parameter Approch, Population Algorithm.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	SIMULATED ANNEALING ALGORITHM USING ITERATIVE COMPONENT SCHEDULING APPROACH FOR CHIP SHOOTER MACHINES
Author:	MANSOUR ALSSAGER , ZULAIHA ALI OTHMAN
Abstract:	A Chip Shooter placement machine in printed circuit board assembly has three movable mechanisms: an X-Y table carrying a printed circuit board, a feeder carrier with several feeders holding components and a rotary turret with multiple assembly heads to pick up and place components. In order to minimize the total traveling time spent by the head for assembling all components and to reach the peak performance of the machine, all the components on the board should be placed in a perfect sequence, and the assembly head should retrieve or pick up a component from a feeder that is properly arranged. There are two modeling approaches of solving the components scheduling problem: integrated and iterative approaches, most popular meta-heuristic used so far for components scheduling problem is population based using integrated modeling approach. This work presents a single based meta-heuristic known as Simulated Annealing with an iterative modeling approach was adopted. The computational study is carried out to compare other population-based algorithms that adopted integrated approach. The results demonstrate that the performance of the simulated annealing algorithm using iterative approach is comparable with other population-based algorithms using integrated approach.
Keywords:	Printed Circuit Board, Chip Shooter Machine, Simulated Annealing.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	ENHANCED WATERMARK DETECTION MODEL BASED ECHO HIDING TECHNIQUE
Author:	MOHAMED TARHDA, RACHID EL GOURI, LAAMARI HLOU
Abstract:	Initially, Internet was a tool in the world of research and science. Information was exchanged between universities and institutions and contributed to deepen our knowledge. Today, the explosion of popularity of the World Wide Web has accelerated the development of the Internet as an information and communication resource for consumers and businesses. It has become a great way to communicate exchange, work, meet, learn and even trade. However, Piracy has also grown and causes much more harm to the intellectual property owners, who found themselves losing the revenue that would have been gained if they had the legitimate product been purchased. To fight piracy and contribute to intellectual properties protection digital watermarking researchers develop many techniques to hide special signals into original digital content in such a way that it would be used as a proof to support ownership claims. These techniques are related to text, image, video and audio contents. In this paper, we completed a non-blind audio watermarking design based on echo hiding technique. To achieve this, the audio signal of a music recording, an audio book or a commercial is slightly modified by introducing echoes with appropriate delays. In detection process, we used polynomial-based scheme as an alternative to cepstrum-based one that is commonly used in literature [1]. In our method, the quality of watermarked audio tracks is enhanced as the echo is much more attenuated in comparison to the classical echo hiding approaches. The bit rate of the embedded information is increased as both attenuations and delays could be used for embedding watermarks. Simulations show good detection results.
Keywords:	Audio watermarking, Echo hiding technique, Cepstrum, Polynomial approach, Delay.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	A BACK PROPAGATION BASED BOTNET DETECTION ALGORITHM FOR ENHANCED NETWORK SECURITY
Author:	M.KEMPANNA, DR.R.JAGADEESH KANNAN
Abstract:	The increased network computers makes botnet detection as a challenging one and it makes easier for intruders and attackers to generate mitigation attacks. The centralized propagation nature of botnet floods warms through different botnet clients and questions the network security. To overcome the challenges in identifying the botnet, we propose a new back propagation algorithm for botnet detection. The proposed back propagation method is a learning one, which keeps track of signature of identified warm and the list of hop it traversed. For each warm signature identified, it maintains bot matrix, in which set of hop addresses traversed by the data packet is stored. Whenever a warm packet is identified, its traversal path is tracked and compared with the list of hops present in the bot matrix for the occurrence of hop address present in the traversal path.
Keywords:	Network Security, Botnet, Peer-Peer Networks, Bot Matrix, Hops.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	AN EFFECTIVE QUEUING MODEL BASED BANDWIDTH ALLOCATION SCHEME FOR FAIR QOS PROVISIONING IN LTE SYSTEMS
Author:	M. KARPAGAM, N. NAGARAJAN
Abstract:	In this paper, we propose a novel bandwidth allocation scheme that will guarantee quality-of-service (QoS) support in the downlink (DL) of a LTE-A system. The proposed scheme is developed based on a queuing model that links important performance metrics of DL service ﬂows of LTE-A systems to a set of tunable parameters. Based on the outcome of the results of the queuing model, the performance metrics are set. The bandwidth allocation scheme then uses the pre-determined performance parameters in making the scheduling decisions. In order to achieve the best results from the proposed scheme, the scheme is integrated with the slot allocation process that is carried out in the physical layer. LTE-A systems uses orthogonal frequency-division multiple access (OFDMA) slot allocation mechanism that adapts to channel conditions at the destination mobile stations (MSs). The proposed scheme performs better than the conventional approach in terms of system throughput, delay and packet dropping ratio, thereby, improving the QoS of the overall system. Further the proposed system is simple in design and its cross-layer approach guarantees improved resource utilization especially in the presence of link adaptations and channel fading. Simulation results have demonstrated that the proposed scheme provides better QoS support for both real-time and non-real-time applications in LTE-A systems.
Keywords:	LTE-A, OFDMA, Queuing Model, QoS, Cross Layer Approach.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	AUTONOMOUS RE-CONFIGURATION SYSTEM WITH ROUTE STABILITY IN WIRELESS NETWORKS
Author:	K. MUTHULAKSHMI, Dr. K. BASKARAN
Abstract:	In multihop wireless networks experience frequent link failure caused by channel interference, dynamic obstacles, and bandwidth demands. Because of this degradation the wireless networks require expensive manual network management recovery. This paper presents an autonomous network reconfiguration system (ARS) using AOMDV protocol and acknowledgement reception .The ARS enables the multi radio, wireless networks to autonomously recover from local link failure to preserve the network performance. The ARS provides necessity channel assignment changes with the help of the AOMDV protocol to improve performance . AOMDV uses the channel average non fading duration as a routing metric to select the stable link for path discovery and applies a preemptive hands-off strategy to maintain a reliable connection by exploiting channel state information.After the data transmission concern receiver provides the acknowledgement notification to the transmitter node via an alternate path.The evaluation results show the network path becomes stable and no data loss can be occurred. The overall system performance efficiency by more than 90%.
Keywords:	Autonomous reconfiguration system, AODV, AOMDV, Wireless link failure and Random Way point Model
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	ENERGY EFFICIENT MAC PROTOCOL WITH FAIR-SCHEDULING TECHNIQUE IN MANET
Author:	P. SIVANESAN, S. THANGAVEL
Abstract:	In Mobile Ad hoc Networks (MANETs), achieving fairness and increasing channel utilization are the important design goals of scheduling. However, these two goals contradict with each other. In this paper, a fair-scheduling technique for inelastic traffic flows in MANET is proposed. The network traffic is differentiated into two categories as elastic and inelastic flows. In this technique, data packets of inelastic flows are prioritized over data packets of elastic flows. Utility function is estimated for considering channel utilization and channel state information along with delay of data packets. When more than a data packet of inelastic flows compete in scheduling, packet with high (upper bound) on delay field is prioritized and scheduled. The proposed technique is validated through simulation results. It is proved that the proposed technique offers fairness in scheduling network traffic.
Keywords:	Channel utilization, Fair-scheduling, MAC, MANET, Prioritized.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	IMAGE RESTORATION BASED ON UNSYMMETRIC FUZZY SWITCHED STEERING KERNEL
Author:	R. PRABHU, Lt. Dr. S. SANTHOSH BABOO
Abstract:	The Digital image restoration is one of the image processing techniques that deals with the methods used to recover an original image from a degraded image. The proposed work is done for high density impulse noise which is affected by gaussian blur and is solved by using fuzzy filtering techniques for denoising and a Noise Suppressed Steering Kernel for deblurring which is a hybrid method. In the previous work the outputs suffering with spurious edges in the case of denoising. The above disadvantages of the steering kernel are overcome by using median filters. The presence of spurious edges on iterative process gets added up and becomes stronger if not removed. Hence it can be eliminated by using median filters at the end of the each iteration, since this method is an iterative process. A noise suppressed steering kernel NSSK is used in the proposed method.
Keywords:	Image restoration, Fuzzy filter, Steering kernel, Noise suppressed steering kernel.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	OPTIMIZED DIGITAL FILTER ARCHITECTURES FOR MULTI-STANDARD RF TRANSCEIVERS
Author:	R.LATHA, Dr.P.T.VANATHI
Abstract:	This paper addresses on two different architectures of digital decimation filter design of a multi-standard Radio Frequency (RF) transceivers. Instead of using single stage decimation filter network, the filters are implemented in multiple stages using FPGA to optimize the area and power. The proposed two types of decimation filter architectures reflect the considerable reduction in area & power consumption without degradation of performance. The filter coefficients are derived from MATLAB and the filter architectures are implemented and tested using Xilinx SPARTAN FPGA .The Xilinx ISE 9.2i tool is used for logic synthesis and the Xpower analysis tool is used for estimating the power consumption. First, the types of decimation filter architectures are tested and implemented using conventional binary number system. Then the two different encoding schemes namely i.e. Canonic Signed Digit (CSD) and Minimum Signed Digit (MSD) are used for filter coefficients and then the architecture performances are tested .The results of CSD and MSD based architectures show a considerable reduction in the area & power against the conventional number system based filter design implementation.
Keywords:	Digital Transceiver, Multi-rate Digital Filter, Multistage Decimation Filter, FPGA, Area Reduction, Low Power Design.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	REAL TIME HEART AND LUNG SOUND SEPARATION USING ADAPTIVE LINE ENHANCER WITH NLMS
Author:	K.SATHESH, Dr.N.J.R.MUNIRAJ
Abstract:	The heart sound signal (HSS) separated from the recorded real time raw sound signal (RSS) in a human being. The signal is taken from the different age groups for both male and female. In a real time sound signal separation techniques the desired sound signals are difficult to achieve, now we have separated real time raw lung sound signal into the real heart sound signal. To the proposed technique we have introduced adaptive line enhancer (ALE) with normalized least mean square (NLMS) algorithm which is used to obtain the desired sound signal from real time sound signal and the linear predictive FIR filter are used to detect the other sound signals and the interferences. We have introduced the new adaptive filter algorithm such as the normalized least mean square algorithm to obtain the desired real heart sound signal because the NLMS is one of the factor µ is not constant and also the weights are updated for each iteration. So we get the expected the real heart signal without interferences in a real time recorded sound signal. The proposed system is implemented and in the results we have considered some parameters to find the error rate of the desired sound signal (DSS), signal to noise ratio (SNR) and computational time are verified using Matlab 2010.
Keywords:	Heart sound signal (HSS), Lung sound signal (LSS), Adaptive line enhancer (ALE), Normalized Least mean square (NLMS), Finite impulse response filter (FIR).
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	DESIGN OF AIRFOIL USING BACKPROPAGATION TRAINING WITH PENALTY TERM
Author:	K.THINAKARAN, DR.R.RAJASEKAR
Abstract:	Here, we investigate a method for the inverse design of airfoil sections using artificial neural networks (ANNs). The aerodynamic force coefficients corresponding to series of airfoil are stored in a database along with the airfoil coordinates. A feedforward neural network is created with input as a aerodynamic coefficient and the output as the airfoil coordinates. . In existing algorithm as an FNN training method has some limitation associated with local optimum and oscillation. In this paper new cost function is proposed for hidden layer separately. In the proposed algorithm the output layer is incorporated into to the cost function having linear and non linear error terms. The functional constraints penalty term at the hidden layer are incorporated into to the cost function having linear and nonlinear error terms. Results indicate that optimally trained artificial neural networks may accurately predict airfoil profile.
Keywords:	Linear Error, Nonlinear Error, Steepest Descent Method, Airfoil Design, Neural Networks, Backpropagation, Penalty Term.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	DEVELOPMENT BATTERY OPERATION MANAGEMENT TO MAINTAINING CONTINUITY OPERATION OF MICROGRIDS IN ISLANDING CONDITION
Author:	HARTONO BUDI SANTOSO , RUDY SETIABUDY , BUDIYANTO
Abstract:	This research developed power sharing methods between inverters in the PV microgrid. The regulator of microgrid operation mode while using the back-up battery in every distributed generation during islanding condition needs to be done in order to maintain continuity of power supply from every generator to meet the power load. Arrangement of microgrid operation mode is done by adjusting power-sharing supply distribution between generators which sourced from the battery and utilizing energy source from solar radiation optimally when the sun exist. The study was conducted by comparing three microgrid operation mode simulations ; stand alone, equal output power, and equal battery level. The simulation results show that the distribution of power sharing method between generators, based on equal battery level, is better than equal output power, where on equal battery level, the Power Distribution Index (PDI) = 100% while, in equal output power, PDI = 94.6%. Meanwhile forthe Battery Charging Index (BCI) both methods give the same result of 100%.
Keywords:	Microgrid, Power Distribution Index, Battery Charging Index, Islanding Condition And Continuity Operation
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	AN EFFICIENTBINARIZATION TECHNIQUE FOR HISTORICAL DOCUMENT IMAGES
Author:	J.RAMYA, B.PARVATHAVARTHINI
Abstract:	Binarization is an important preprocessing step in several document image processing tasks. Binarization of historical document with poor contrast, strong noise, and non-uniform illumination is a challenging problem. A new binarization algorithm has been developed to address this problem. In this paper, we describe a new method which does not utilize statistical properties of the intensity histogram of a gray-scale image to determine a threshold. Our method is based on the “Divide and Conquer” strategy for calculating a threshold value which is based on the list of gray levels in that image. It uses low pass Weiner filter method as a preprocessing step to enhance the image by deblurring the image. It uses Median Filter method as a postprocessing step to reduce noise in the image. Our result shows that this new binarization method produce high quality binary image for historical document than any other global methods such as Otsu’s method.
Keywords:	Binarization, Divide and Conquer, Historical Document images, Threshold.
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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Title:	EFFECT OF DUAL GATE MOSFET ON THE DECODER BASED DEMULTIPLEXER
Author:	ABDUL NAZAR C.A, KANNAN.V
Abstract:	In this work, a decoder based demultiplexer is designed using DG MOSFET and its functional behavior is analyzed along with the characteristics of the device. Equivalent circuit method is followed in this work, which is very significant in analyzing the characteristics and performance of the dual gate metal oxide semiconductor field effect transistor. The maximum drain current obtained is 40 mA at a gate source voltage of 5V and the variation of the drain current with respect to drain voltage is also obtained. The decoder based demultiplexer is designed and the simulation is carried out using PSPICE simulation software, whereas the functional behavior is in accordance with the theoretical facts.
Keywords:	Demultiplexer, DGMOSFET, Equivalent Circuit Method, Drain Current
Source:	Journal of Theoretical and Applied Information Technology 20 July 2014 -- Vol. 65. No. 2 -- 2014
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