{"title":"Effect of using RM code to control PAPR in MCCDMA and OFDM","authors":"S. Rizwan-ul-Hasan","doi":"10.1109/INMIC.2011.6151498","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151498","url":null,"abstract":"MC-CDMA (Multi-Code Code Division Multiple Access) and OFDM (Orthogonal Frequency Division Multiplexing) both multiple access techniques may provide high data rates, but they suffer from high PAPR (Peak to Average Power Ratio), which is a major issue in the said Multiple Access techniques. In this communication RM (2, 6) second order Reed Muller code is implemented for optimizing PAPR in MC-CDMA and OFDM. Simulation result show that RM (2, 6) gives optimal power in MCCDMA, and OFDM as well, but much varying in the latter. However, error rate is also almost zero for both techniques.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131398015","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":"HEXOSYS II - towards realization of light mass robotics for the hand","authors":"J. Iqbal, O. Ahmad, Ahsan Malik","doi":"10.1109/INMIC.2011.6151454","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151454","url":null,"abstract":"This research presents a prototype of a direct-driven, optimized and light-mass hand exoskeleton that is designed to fit over the dorsal side of the hand, thus retaining palm free for interaction with real/virtual objects. The link lengths of the proposed Hand EXOskeleton SYStem (HEXOSYS) TT have been selected based on an optimization algorithm. In an attempt to make the design human hand compatible, the actuators of HEXOSYS II have been chosen as a result of series of experiments on human hands of various sizes. The system based on an optimum under-actuated mechanism provides 3 DOF/finger. The resultant motion of the exoskeleton allows the wearer to perform flexion/abduction as well as passive abduction/adduction. Simple and under-actuated mechanisms together with compact mechanical design lead to realize a light mass robotic system. The first prototype of HEXOSYS II has been fabricated. Comprising of four fingers, which are enough to accomplish most of our daily life activities, the system weighs 600 grams.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132048032","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. A. Kamal, Junaid Ahsenali Chaudhry, Saqib Ali, Mudassar Ahmad, Md. Asri Ngadi, Abdul Hanan Abdullah
{"title":"“A synopsis of self-healing functions in wireless networks”","authors":"K. A. Kamal, Junaid Ahsenali Chaudhry, Saqib Ali, Mudassar Ahmad, Md. Asri Ngadi, Abdul Hanan Abdullah","doi":"10.1109/INMIC.2011.6151467","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151467","url":null,"abstract":"In early 20th century when technology evolve, the performance of systems suffered from the problems of complexity, increasing cost of maintenance and software of hardware failure caused by unpredictable behavior and poor manageability. This fostered researchers to discover new design and techniques that enable the systems to operate autonomously. In 2001, IBM introduces self-managing capabilities (self-organizing, self-healing, self-optimization and self-protection) with autonomous behavior. In this survey, the main concerns are self-healing autonomic computing. Self-healing is an autonomic computing system that detects and diagnoses errors without the need of human intervention. A number of concepts, techniques and functions have been developed in different application areas of self-healing. This survey gives an overview about some approaches and solutions of past and current research in self-healing classified to operating system, routing, security and web services. These proposed approaches and solutions were developed to solve the problems that arise in manual intervention system. To achieve the perfect of self-healing behaviors, its remains an open and significant challenge that can be accomplished through a combination of process changes, new technologies and architecture and open industry standards.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122458941","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":"Feature selection based image clustering using local discriminant model and global integration","authors":"N. Ahmed, A. Jalil, Asifullah Khan","doi":"10.1109/INMIC.2011.6151457","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151457","url":null,"abstract":"It is well known that parameter optimization and dimension reduction strategies play an important role in improving the performance of clustering algorithms. Recently, Yang et at. (2011) proposed an interesting and effective local discriminant model and global integration (LDMGI) clustering algorithm for image databases. We observed this LDMGI approach suffers from the curse of dimensionality. We then show that the effectiveness of this approach could be substantially enhanced with parameter selection and dimensionality reduction approach. We thus experimentally observed the enhanced performance of LDMGI algorithm in terms of clustering accuracy (ACC) and normalized mutual information (NMI). In the first stage, the optimal values of the clustering parameters, nearest neighbours (k) and regularization parameter (λ) are computed. In the second stage, minimum Redundancy and maximum-Relevance (mRMR) technique is utilized to select discriminant image features. During simulation, mRMR based LDMGI model have given an overall 18.7% (ACC) and 11.8% (NMI) higher performance than LDMGI model.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129080638","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":"Computerized system for fingerprint identification for biometric security","authors":"Anum Batool, A. Tariq","doi":"10.1109/INMIC.2011.6151452","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151452","url":null,"abstract":"AFTS (automated fingerprint identification system) is used for identification of fingerprint images. AFIS is a type of biometric system which uses digital imaging methodology to capture, analyze and store fingerprint data. This fingerprint data can be compared with the database to determine the identity of individual. The fingerprint images of poor quality need to be enhanced before the feature extraction and feature matching. In this paper, we present a novel automated approach for fingerprint matching, which involve three steps. In the first step, we enhance image to remove noise. In the second step, we extract required feature that is necessary for matching and remove unwanted feature. In the third step, we do matching by using adjacent feature vector technique. The advantage of adjacent feature vector technique is that, it shows a good performance to differentiate matching and non- matching minutiae pairs. AFV (Adjacent Feature Vector) also reduce the computational cost and matching error. We have used standard fingerprint image database FVC2004 (Fingerprint Verification Competition). Experimental result shows that our approach is effective and gets high quality matching.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128516663","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":"Current transport studies and extraction of series resistance of Pd/ZnO Schottky diode","authors":"S. Faraz, M. Willander, Q. Wahab","doi":"10.1109/INMIC.2011.6151472","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151472","url":null,"abstract":"Electrical characterization of Palladium (Pd) Schottky diodes on n-type zinc oxide (ZnO) is performed by current-voltage (I–V) and capacitance-voltage (C-V) and current-voltage-temperature (I-V-T) measurements. Single crystal bulk ZnO wafer synthesized hydrothermally in the wurtzite (0001) orientation has been used for device fabrication. From I–V measurements the Schottky diodes exhibited a non-linear rectifying behavior with a barrier height of 0.65eV and an ideality factor of 4.1. Room temperature current transport mechanism has been investigated from logI - logV plot. Series resistance (Rs) is extracted from forward I–V characteristics by using Chueng function and Norde function. Rs is also extracted from I-V-T measurements at two different temperatures, by using modified Norde function. The series resistance is found in the range from 313 to 460 Ω. A comparison is made between the obtained values of Series resistances and possible reasons of discrepancy are addressed.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125639972","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":"MIMO OFDM signal detection using quadratic programming","authors":"F. Bhatti, Shoaib Khan, S. Rehman, F. Rasool","doi":"10.1109/INMIC.2011.6151497","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151497","url":null,"abstract":"In this paper we present a novel optimization scheme based on quadratic programming (QP) for solving Maximum Likelihood Decoding (MLD) problem in Multiple Input Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) signal detection systems. Though the MLD method gives the most optimum mathematical solution for detecting multiple signals at the MIMO receiver, but it is hard to implement because of its high computational complexity, that grows exponentially as the number of transmit antennas or the modulation order is increased. The proposed method has extremely low computational complexity as compared to that of the MLD scheme. The proposed method has also been compared with the Zero Forcing (ZF) method which is the simplest method but has high bit error rates. Overall the QP method offers a good tradeoff between high computational complexity (of MLD) and low error performance (of ZF) for a MIMO OFDM receiver.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127107171","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}
Ahmad Fuad Abdul Aziz, A. S. Samosir, K. Kamal, Imran Amin, S. Mathavan
{"title":"Modeling and analyzing the proton exchange membrane of fuel cell (PEMFC) in Matlab/SIMULINK environment","authors":"Ahmad Fuad Abdul Aziz, A. S. Samosir, K. Kamal, Imran Amin, S. Mathavan","doi":"10.1109/INMIC.2011.6151480","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151480","url":null,"abstract":"This paper presents and studies the mathematical model of proton exchange membrane of fuel cell (PEMFC) using Matlab/SIMULINK software. The paper consists of the calculation of cell voltage, the double layer charging effect, dynamic response and thermodynamic response. This model is used to analyze the fuel cell behavior and the characteristic of output values at different parameters. Two characteristics involved in this paper which are transient and steady-state condition where the results are presented in graphical representation. The parameters for this model in this paper are based on Ballard-Mark-V fuel cell. The maximum power produced by the fuel cell is 3757 watt at load current of 261.4 Amps.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132921043","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":"SBVR vs OCL: A comparative analysis of standards","authors":"Imran Sarwar Bajwa, B. Bordbar, Mark G. Lee","doi":"10.1109/INMIC.2011.6151485","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151485","url":null,"abstract":"In software modelling, the designers have to produce UML visual models with software constraints. Similarly, in business modelling, designers have to model business processes using business constraints (business rules). Constraints are the key components in the skeleton of business or software models. A designer has to write constraints to semantically compliment business models or UML models and finally implementing the constraints into business processes or source code. Business constraints/rules can be written using SBVR (Semantics of Business Vocabulary and Rules) while OCL (Object Constraint Language) is the well-known medium for writing software constraints. SBVR and OCL are two significant standards from OMG. Both standards are principally different as SBVR is typically used in business domains and OCL is employed to compliment software models. However, we have identified a few similarities in both standards that are interesting to study. In this paper, we have performed a comparative analysis of both standards as we are looking for a mechanism for automatic transformation of SBVR to OCL. The major emphasis of the study is to highlight principal features of SBVR and OCL such as similarities, differences and key parameters on which these both standards can work together.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"36 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114094312","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":"Estimation of weights to combine trained neural networks using linear estimation techniques","authors":"Nadeem Qazi, H. Yeung","doi":"10.1109/INMIC.2011.6151465","DOIUrl":"https://doi.org/10.1109/INMIC.2011.6151465","url":null,"abstract":"Input feature selection and appropriate weight estimation in combining trained neural network are one of the important key factors in neural stacked neural network based models. This study has investigated these problems through the information theory and linear estimation weight techniques. These techniques have implemented to model the non linear separation process model of a novel design compact separator. The separation efficiency of the compact separator used in this study was found to be dependent non -linearly on many input factors such as gas volume fraction, inlet mixture velocity, liquid and gas superficial velocity, inlet pressure, and Loss coefficient etc. The input parameters from all the candidate inputs were selected based on their Mutual Information with the separation efficiency. It is demonstrated that mutual information is better statistical method for input feature selection to train a neural network. Based on the mutual information a set of inputs were selected and several single trained neural networks having different architecture in terms of hidden neurons and training functions were combined together to improve the prediction accuracy. Three linear methods i.e. equal weigh ts; linear regression and principle component regression were used to combine the trained neural network. The performance of the combined neural network aggregated through principle component regression was found to better than neural network combined with equal weight and linear regression.","PeriodicalId":207616,"journal":{"name":"2011 IEEE 14th International Multitopic Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116042377","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}