{"title":"Comparative evaluation of performance of different control strategies on UPQC connected distribution system","authors":"S. Srinath, M. P. Selvan, K. Vinothkumar","doi":"10.1109/ICIINFS.2010.5578651","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578651","url":null,"abstract":"This paper presents a comparative analysis of steady state behaviour of UPQC with three different control techniques, when connected to a distribution system to protect sensitive loads against power quality problems. The control strategies based only on hysteresis, SPWM and a combination of both for controlling the firing pulses of shunt and series APFs of UPQC are discussed. In common, PI control is used for maintaining DC link voltage. PSCAD/EMTDC is used to model the UPQC connected to a RL load. The simulated model is tested with all the three control strategies and the results are verified for voltage sag and swell compensation. A comparison is made between the control schemes, taking in account of the current through shunt APF and current at the point of common coupling (PCC). The results are appreciable when hysteresis type control is applied to shunt APF and SPWM control to series APF.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123793113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"BER performance of SVD-based transmit beamforming with various modulation techniques","authors":"M. Raja, P. Muthuchidambaranathan","doi":"10.1109/ICIINFS.2010.5578715","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578715","url":null,"abstract":"In this paper, we present a beamforming technique using singular value decomposition (SVD) for closed loop multiple-input multiple-output (MIMO) wireless systems with various modulation techniques such as binary phase shift keying (BPSK) and 16- quadrature amplitude modulation (16-QAM). The channel matrix is decomposed into a number of independent orthogonal modes of excitation, which we will refer to as eigenmodes of the channel. The transmit precoding is performed by multiplying the input symbols with unitary matrix to produce the transmit beamforming, and the precoded symbols are transmitted over Rayleigh fading channel. At the receiver, combining process is performed for receiving symbols by using maximum ratio combiner (MRC), and the receiver shaping is performed to retrieve the original input symbols by multiplying the received signal with conjugate transpose of the unitary matrix. Furthermore, we derive expressions for average bit error rate (BER) for BPSK and average symbol error rate (SER) for M-QAM. Simulation results demonstrate that the proposed SVD-based beamforming schemes yield the better performance when compare to the other beamforming method.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131230034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Sathisha, G. N. Madhusudan, S. Bharathesh, K. Suresh Babu, K. Raja, K. Venugopal
{"title":"Chaos based Spatial Domain Steganography using MSB","authors":"N. Sathisha, G. N. Madhusudan, S. Bharathesh, K. Suresh Babu, K. Raja, K. Venugopal","doi":"10.1109/ICIINFS.2010.5578711","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578711","url":null,"abstract":"In recent years Steganography plays an important role in secure communication. Steganography is a technique of embedding secret information into cover media, like image, video, audio and text, so that only the sender and the authorized recipient can detect the presence of secret information. In this paper we propose Spatial Domain Steganography using 1-Bit Most Significant Bit (MSB) with chaotic manner. The cover image is decomposed into blocks of 8*8 matrix of equal size. The first block of cover image is embedded with 8 bits of upper bound and lower bound values required for retrieving payload at the destination. The mean of median values and difference between consecutive pixels is determined to embed payload in 3bits of Least Significant Bit (LSB) and one bit of MSB in chaotic manner. It is observed that the capacity and security is improved compared to the existing methods with reasonable PSNR.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134217427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Least square based parabolic regression to determine Calibration Constant in measurement","authors":"Pravakar Mallick, C. Nayak, T. B. Behera","doi":"10.1109/ICIINFS.2010.5578684","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578684","url":null,"abstract":"This paper highlights the use of Calibration Constant of Test & Measuring (T&M) equipment derived during calibration process, in measurement inference. The equipment user is much interested to find the true value of measurand against the measured quantity. In this paper, the Best-fit-curve is proposed to model a set of test results obtained during calibration by Least Square Error (LSE) based parabolic regression. Calibration Constant becomes more dominant rather than the detailed multi page test results to determine the actual value of measurement with certain degree of accuracy. This reduces interpolation error while calculating the true value other than testing points and also the measurement time. The Test setup is automated and the measured parameters are traceable to national standards.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134332892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Contribution-based clustering algorithm for content-based image retrieval","authors":"H. Narasimhan, Purushothaman Ramraj","doi":"10.1109/ICIINFS.2010.5578664","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578664","url":null,"abstract":"Clustering is a form of unsupervised classification that aims at grouping data points based on similarity. In this paper, we propose a new partitional clustering algorithm based on the notion of ‘contribution of a data point’. We apply the algorithm to content-based image retrieval and compare its performance with that of the k-means clustering algorithm. Unlike the k-means algorithm, our algorithm optimizes on both intra-cluster and inter-cluster similarity measures. It has three passes and each pass has the same time complexity as an iteration in the k-means algorithm. Our experiments on a bench mark image data set reveal that our algorithm improves on the recall at the cost of precision.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133597338","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optimal network selection algorithm for heterogeneous wireless networks","authors":"S. Mitra","doi":"10.1109/ICIINFS.2010.5578730","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578730","url":null,"abstract":"Future wireless network must be able to coordinate services within a diverse network environment. One of the challenging problems for coordination is the selection of optimal network depending upon the type of demanding application. There are different types of Internet applications and network interfaces. The quality of service requirement varies from one application to another. The present work considers the integration of three networks, GPRS, IEEE 802.11x and WiMAX. The proposed scheme uses network selection module to select network dynamically depending upon the application type. It also uses a traffic distribution module to distribute the applications dynamically among the various routes within a network. The traffic distribution module also detects the fast handoff mobile nodes and triggers vertical handoff for such mobile nodes to a network having high data rate to prevent their further handoff. This module also calculates network performance parameters and application blocking probability of the network. It also sends the network performance parameters and application blocking probability to network selection module. The network selection module uses the network performance parameters to execute the network selection algorithm and application blocking probability of each network to determine the user satisfaction. The performance of the proposed scheme is evaluated on the basis of network usage, application blocking probability and user satisfaction.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131797589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Punnam Chandar, T. Satyasavitri, B. Narasimha, E. Hari Krishna
{"title":"Enhancement of color images by scaling Hirschman Optimal Transform coefficients","authors":"K. Punnam Chandar, T. Satyasavitri, B. Narasimha, E. Hari Krishna","doi":"10.1109/ICIINFS.2010.5578692","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578692","url":null,"abstract":"Color Images captured under complex lighting conditions may suppress the visual cue information. In order to perform consistent analysis from the images they need to be enhanced in terms of brightness along with colors restored with minimal computational overhead. Transform domain image enhancement offers a superior visual brilliance. This paper presents Hirschman Optimal Transform (HOT) based enhancement of color images. The features of HOT are its basis kernel has more no. of zeros and has high frequency resolution. These features are exploited to achieve reduced computational complexity and enhanced image quality in terms of brightness, contrast & color. Further the proposed HOT based enhancement resulted in a better JPEG Quality Metric compared to conventional DCT based transform domain enhancement. The enhanced visual features of the subject images using HOT are found to be superior to the contemporary transform domain methods.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129393603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Measurement of the correlation in a multidimensional feature space","authors":"Nirmalya Sen, R. D. Gupta, S. Chakroborty","doi":"10.1109/ICIINFS.2010.5578662","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578662","url":null,"abstract":"This paper introduces an index which can be used as a measure of correlation between features of a multidimensional feature vector. The proposed index has been intuitively explained using constant distance loci of Mahalanobis metric. More rigorous explanation has been given using orthogonal decomposition of the vector space. The application of the proposed index has been given using 2D synthetic data.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134083402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Rajesh Shetty, U. Sripati, H. Prashantha Kumar, B. Shankarananda
{"title":"Synthesis of BCH codes for enhancing data integrity in flash memories","authors":"K. Rajesh Shetty, U. Sripati, H. Prashantha Kumar, B. Shankarananda","doi":"10.1109/ICIINFS.2010.5578724","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578724","url":null,"abstract":"Flash memories have found extensive application for use in portable storage devices. They have been used for code storage as well as data storage. The storage density associated with these devices has increased tremendously in the past few years. This has necessitated very dense packing of data bits on the device. This gives rise to increased Raw Bit Error Rate (RBER) as a result of Inter Symbol Interference (ISI) between bits stored in adjacent cells. This necessitates the use of powerful error control codes to guarantee information integrity. With the increase in density of data storage, the raw bit error rate (RBER) associated with the storage device increases. Error Control Coding (ECC) can be used to reduce the RBER to acceptable values so that these devices can be employed to store information in applications where data corruption is unacceptable. In this paper, we describe the synthesis of BCH codes based on memory models proposed by the semiconductor industry. These codes have better error correcting capability than the codes used in current practice.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"59 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124316782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Y. Ota, H. Taniguchi, T. Nakajima, K. Liyanage, K. Shimizu, T. Masuta, J. Baba, A. Yokoyama
{"title":"Effect of autonomous distributed vehicle-to-grid (V2G) on power system frequency control","authors":"Y. Ota, H. Taniguchi, T. Nakajima, K. Liyanage, K. Shimizu, T. Masuta, J. Baba, A. Yokoyama","doi":"10.1109/ICIINFS.2010.5578655","DOIUrl":"https://doi.org/10.1109/ICIINFS.2010.5578655","url":null,"abstract":"Penetrating large amount of renewable energy sources into power system, battery energy storage performs an important role for smoothing their natural intermittency, ensuring grid-wide frequency stability, and suppressing voltage rise caused by reverse power flow. The ubiquitous power grid is one of the concepts as a smart grid in Japanese context, where the total battery capacity can be optimized by coordinating renewable energy sources, controllable distributed generators, and controllable loads on demand side, for example, heat pump based water heater with heat storage, and plug-in hybrid vehicle or electric vehicle with onboard battery, and so on. These controllable devices behave as an autonomous distributed smart storage by charging or discharging against the power system frequency measurement as paying attention to user convenience. In this paper, effects of the autonomous distributed smart storage on bulk power systems are investigated thorough a load frequency control simulation.","PeriodicalId":106953,"journal":{"name":"2010 5th International Conference on Industrial and Information Systems","volume":"148 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121258602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}