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Kosta, Yogeshwar P.
- Past and Present Global Trends for Economic Development and their Implications for an Emerging India
Abstract Views :237 |
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Authors
Affiliations
1 Charotar University of Science and Technology, Changa- 388 421, Anand, Gujarat, IN
1 Charotar University of Science and Technology, Changa- 388 421, Anand, Gujarat, IN
Source
Drishtikon: A Management Journal, Vol 1, No 1 (2009), Pagination: 1-7Abstract
This paper is the result of an exhaustive review of some basic sectors to identify the trends in the journey of nations to economic development. A knowledge and understanding of the past trends in the evolution of developed countries would help us to craft the strategy for betterment in terms of social and economic growth. We have attempted to answer in this paper two questions, viz.: What the developed countries did and what the developing countries must do in order to become competitive. The paper has been largely India-centric in respect of developing countries, even though reference to China has been made frequently.Keywords
Infrastructure, Demography, Lifestyle, Recession
References
- Jeffrey Sachs (2005), The End of Poverty – How we can make it happen in our lifetime, Penguin Books,
- David S(2007). The Dragon and the Elephant – China, India and the New World Order, Profile Books.
- Prahlad C K, and Ramaswamy V (2004). The Future of Competition – Co-creating Unique Value with Customers, Penguin Portfolio.
- Toffler A(1981), The Third Wave, Macmillan.
- Nicholas T N (2007). The Black Swan, Allen Lane.
- Dutz Mark A. (ed.) (2007). Unleashing India’s Innovation – Towards Sustainable and Inclusive Growth, The World Bank
- Kassides C (1985). The Contributions of Infrastructure to Economic Development, World Bank Discussion Paper 213, The World Bank.
- Lee L L (2002). Promoting Economic Development by Improving Transportation Infrastructure for Goods Movement, Economic Development Association, US Department of Commerce.
- Tajika E, Yui Y(2002). Social Expenditure and Economic Growth – Sharing Growth in a Japanese Way, World Bank Institute Working Paper, The World Bank.
- Klerman D M(2007). Legal Infrastructure, Judicial Independence, and Economic Development, Global Business and Development Law Journal, Vol. 19.
- Characterization of Band Pass Filter with Improved Design Parameters
Abstract Views :164 |
PDF Views:3
Authors
Affiliations
1 C S Patel Institute of Technology, Changa, IN
2 Charotar University of Science and Technology, Changa, IN
3 Electronics & Communication Engineering Department, Charotar University of Science and Technology-CHARUSAT, Changa, IN
1 C S Patel Institute of Technology, Changa, IN
2 Charotar University of Science and Technology, Changa, IN
3 Electronics & Communication Engineering Department, Charotar University of Science and Technology-CHARUSAT, Changa, IN
Source
Wireless Communication, Vol 5, No 1 (2013), Pagination: 37-41Abstract
Waveguides are robust structure and handle high power well, compared to transmission line filter such as coplanar lines, microstrips and striplines. Modeling techniques of the waveguide of the filter using the non-planner model that is most preferable among all present for low cost mass production of microwave and millimeter wave circuits and systems. The mathematical computations for the design dimensions of a wave guide band pass filter are implemented using HFSS software based on the insertion loss method. This paper basically concerned with the improvement characteristics of post coupled designs that have been modeled. This paper demonstrates the approach to overcome the limitation inherent in post coupled , hairpin as well as suppression of the harmonic which is prominent in the micro strip coupled filter and resonator topology. This has been achieved using the design concept of finite conductive post coupled obstacles into the perfect impedance match rectangular waveguide. The modified topologies of the post coupled along with the concept of reduced insertion loss and better return loss with improved quality factor has been achieved. Furthermore, presented structures results are sensitive to standard design equations and dimensions of the elements used. The resonator topologies were designed here at the center frequency of 11.2 GHz, with insertion loss -0.04dB and return loss -67.8616dB with narrow bandwidth and VSWR (Voltage standing wave ratio) =1. 05.Keywords
T-Post, Insertion Loss, Return Loss, Improved Characteristics.- Real Time Implementation of CELP Based AMR NB 06.90 Speech Coder on TMS320C6713 DSP Kit & its Analytical Evaluation of Performance in Simulink
Abstract Views :140 |
PDF Views:4
Authors
Affiliations
1 Veer Narmad South Gujarat University, Surat, Gujarat-395007, IN
2 Marwadi Education Foundation, Rajkot, Gujarat-360001, IN
1 Veer Narmad South Gujarat University, Surat, Gujarat-395007, IN
2 Marwadi Education Foundation, Rajkot, Gujarat-360001, IN
Source
Wireless Communication, Vol 4, No 2 (2012), Pagination: 85-93Abstract
In today’s wireless communication system, one of the major challenges is to maintain good quality of recovered speech at receiver with unpredictable variations and behavior in channel conditions. Modeling of channel is always a difficult task and channel condition is a decisive factor for quality of speech being reproduced at receiver. Till date many techniques have been evolved to mitigate the effect of channel. GSM Adaptive Multi Rate (AMR) 06.90 is one of such technique which counteracts the deleterious effect of channel on speech signals. This technique employs variable bit rate that dynamically switches to specific modes of operation (switching bit rates – called modes of operation) depending upon the channel conditions.
This paper yields development of AMR coder based on Code Excited Linear Prediction algorithm. By affecting some of the key parameters of CELP coder, variable bitrates of AMR coder can be achieved tuning to different channel conditions. An e-test bench using Simulink is created in order to implement AMR coder based on CELP algorithm, and the same studied and investigated through series of simulations. Subsequently Subjective (Mean Opinion Score) and Objective (Perceptual Evaluation of Speech Quality, Signal to Noise Ratio, Segmented SNR) analysis have been carried out on proposed algorithm to evaluate its performance for various bitrate modes. The obtained results clearly advocate significant improvement (for each Subjective and Objective analysis parameters) over [17] while implemented in Simulink. It also reveals the fact that speech quality improvement is evident with respect to increase in bitrate modes. In next phase real time implementation of proposed coder on TMS320C6713 DSP Kit using Simulink Real Time Workshop (RTW) and Code Composer Studio has been discussed. The goal of real time implementation of the proposed coder is to observe the feasibility of coding and decoding of the proposed coder on DSP TMS320C6713 kit.
Keywords
CELP, Code Composer Studio, ETSI, GSM-AMR, Simulink, Speech Coding.- Collection of Real Trace Datasets for Delay Tolerant Network
Abstract Views :148 |
PDF Views:2
Authors
Affiliations
1 Ganpat University, Gujarat, IN
2 Marwadi Education Foundation, Rajkot, IN
1 Ganpat University, Gujarat, IN
2 Marwadi Education Foundation, Rajkot, IN
Source
Wireless Communication, Vol 3, No 8 (2011), Pagination: 560-565Abstract
In this paper is a precipitate of various applications/projects concerning delay tolerant networks. Our study summarizes each of the applications independently, aspects consisting of purpose, network type, environment, and network setup and data collection methodology. This study is primarily done to discover common parameters that will help in generalization, pin down niches which need to be addressed in the context to attempt unification amongst different project application and also propose best technique for specialized application. Further, this paper will serve as quick reference base to summarize the details.Keywords
Adhoc Network, DTN, Routing, Wireless Networks.- Network Capacity Enhancement Specific to Mobile Environment Using DTN
Abstract Views :125 |
PDF Views:3
Authors
Affiliations
1 Ganpat University, Gujarat, IN
2 Marwadi Education Foundation, Rajkot, IN
1 Ganpat University, Gujarat, IN
2 Marwadi Education Foundation, Rajkot, IN
Source
Wireless Communication, Vol 3, No 3 (2011), Pagination: 166-176Abstract
A communications network that withstands long delays or outages and is capable of storing packets temporarily stationed in intermediate nodes, until an end-to-end route is re-established or regenerated is known as a delay tolerant network or in short DTN. This paper aims to consolidate general & basic aspects relating to information needs to efficiently execute DTN routing. We start by presenting the evolution of some routing protocols, spotting few routing schemes relevant to us, discuss their groups and classifications, their operating network environment, and through critical study and observation, to identify specific parameters that are common across relevant schemes associated with routing that helps to bring out the advantage and disadvantage associated with them in an attempt to establishing some possible future extensions-of-the-existing through consolidation - accomplished by capturing, organizing and showcasing the same in metrics and proposing new schemes as well. This leads us to identify specific schemes and techniques that will help us to exploit the delay and utilize the time judiciously to improve the over all efficiency of information exchange in a DTN network. The essence of this study being; to utilize efficiently the temporal period (delay) by opportunistically establishing connectivity - in a strategic manner, to help exchange information across by locally distributed resources, thus making optimal use of available network resources and enhancing the efficiency of information exchange.Keywords
Forwarding, Replication, Single-Copy, Multiple-Copy, Relay, Delivery Ratio, Delay, Throughput, Local Resource, Routing Techniques, Routing Efficiencies, Protocol Introduction.- Consolidation of Projects & Applications for Challenged Networks
Abstract Views :163 |
PDF Views:3
Authors
Affiliations
1 Ganpat University, Gujarat, IN
2 Marwadi Education Foundation, Rajkot, IN
1 Ganpat University, Gujarat, IN
2 Marwadi Education Foundation, Rajkot, IN
Source
Networking and Communication Engineering, Vol 3, No 5 (2011), Pagination: 289-296Abstract
In this paper we have consolidated various aspects related to projects & application executed to gather trace dataset for Delay tolerant network (DTN) or Challenged Networks.. The purpose of the study was to collectively summarize and present various projects setup against the variety of applications in-demand today. Based upon application, we have presented capsule description for each application - short summary, its purpose, network type, environment, configuration/setup and data collection methodology. This we believe is the first kind of study done so far. Finally as we consolidate our findings, our study leads us to affect generalization of routing in DTN based upon application. This paper will serve as quick reference base to summarize the details of a network and help identify a suitable scheme to fit an application.Keywords
Wireless Networks, Sensor Nodes, DTN, Adhoc Network.- Proposed Modification in ETSI GSM 06.10 Full Rate Speech Codec for High Rate Data Hiding and its Overall Performance Analysis
Abstract Views :176 |
PDF Views:2
Authors
Affiliations
1 Veer Narmad South Gujarat University, Surat-395007, Gujarat, IN
2 Marwadi Education Foundation, Rajkot-360001, Gujarat, IN
1 Veer Narmad South Gujarat University, Surat-395007, Gujarat, IN
2 Marwadi Education Foundation, Rajkot-360001, Gujarat, IN
Source
Digital Signal Processing, Vol 3, No 7 (2011), Pagination: 324-334Abstract
Paper proposes modifications in grid selection strategy in Regular Pulse Excitation module of ETSI GSM 06.10 Full Rate 13 kbps coder which offer overall reduction in 1.8 kbps (36bits/each 20ms frame) bit-rate that in turn can be utilized for high bit rate data hiding. So, the suggested modifications in above coder allow joint data hiding and speech coding. In this spared bit rate of 1.8 kbps, the steganographic data like text, audio and image can be embedded in class Ib (as per GSM Full Rate Channel coding standards) in order to provide error protection and then reliably transmitted. The obtained results for objective and subjective analysis reveal that there is a marginal reduction in perceived speech quality for the case of steganographic FR coder when compared with recovered speech quality in the case of standard GSM FR coder. Apart from hiding data, the proposed modifications in GSM FR is useful for overall reduction in codec bit-rate and provides room for better error concealment at channel coding. As a potential application, the hidden bits may be used for Band width Extension (BWE) purpose.Keywords
ETSI, GSM, RPE-LTP Coder, Speech Coding, Steganography.- Empirical Study on Error Correcting Output Code Based on Multiclass Classification
Abstract Views :171 |
PDF Views:2
Authors
Affiliations
1 Charotar Institute of Technology Changa, Gujarat, IN
2 Dharmsinh Desai University, Nadiad, Gujarat, IN
3 Charotar Institute of Technology Changa, Gujarat, IN
1 Charotar Institute of Technology Changa, Gujarat, IN
2 Dharmsinh Desai University, Nadiad, Gujarat, IN
3 Charotar Institute of Technology Changa, Gujarat, IN
Source
Data Mining and Knowledge Engineering, Vol 3, No 2 (2011), Pagination: 76-81Abstract
A common way to address a multi-class classification problem is to design a model that consists of hand picked binary classifiers and to combine them so as to solve the problem. Error-Correcting Output Codes (ECOC) is one such framework that deals with multi-class classification problems. Recent works in the ECOC domain has shown promising results demonstrating improved performance. Therefore, ECOC framework is a powerful tool to deal with multi-class classification problems. The error correcting ability improve and enhance the generalization ability of the base classifiers. This paper introduces state-of-the-art coding (one-versus-one, one-versus-all, dense random, sparse random, DECOC, forest-ECOC, and ECOC-ONE) and decoding designs (hamming, Euclidean, inverse hamming, laplacian, β-density, attenuated, loss-based, probabilistic kernel-based, and loss weighted) perspectives along with empirical study of ECOC following comparison of various ECOC methods in the above context. Towards the end, our paper consolidates details relating to comparison of various classification methods with Error Correcting Output Code method available in weka, after carrying out experiments with weka tool as a final supplement to our studies.Keywords
Coding, Decoding, Error Correcting Output Codes, Multi-class Classification.- Comprehensive Evolution of Different Methods Used in Data Mining-Based Intrusion Detection System
Abstract Views :162 |
PDF Views:3
Authors
Affiliations
1 Charotar Institute of Technology Changa, Gujarat, IN
2 Dharmsinh Desai University, Nadiad, Gujarat, IN
1 Charotar Institute of Technology Changa, Gujarat, IN
2 Dharmsinh Desai University, Nadiad, Gujarat, IN
Source
Data Mining and Knowledge Engineering, Vol 3, No 2 (2011), Pagination: 90-98Abstract
Intrusion is defined as an invasion that consists of set-of-actions that compromise upon the integrity, confidentiality or availability of data-resource/s. Therefore, intrusion detection is an important task when dealing with an information infrastructure for security. A major challenge in intrusion detection is to unearth intrusions that happen almost instantaneously and thereafter lay embedded, to be discovered, in vast scattered resources in a normally operating real-time communication environment. Data mining process working on intrusion detection is to identify valid, novel, potentially useful, and ultimately understandable patterns in massive data. Thus, it can be understood that, it is challenging as well as demanding to apply data mining techniques to detect intrusions of various types in an information infrastructure resource/s. To start with, our paper discusses different intrusion detection techniques that brings out and presents the underlying concepts and associated application of data mining approaches as an applied tool against intrusion detection system. Techniques include, Support Vector Machines (SVMs) that was designed and utilized as classifiers for binary classification/s, and helped to solve multi-class problems. In this paper we bring in the fusion of Decision-Tree and Support Vector Machine (DT-SVM) which combines and reinforce in an effective way for solving multi-class problems in the information resource domain. This method has the potential, as confirmed in our findings, to decrease the training and testing time, contributing to increased efficiency of the system. The construction order of binary tree significantly influences classification performance. Towards the end of the paper we report aspects relating to development of an algorithm that combines to produce a Tree structured multi-class SVM as an intrusion detection data mining technique, which has been applied successfully for the purpose of classifying data that aid the process of intrusion detection.Keywords
Ant-Miner, COD (Common Outlier Detection), Decision Tree, Fuzzy C-Means, K-Means, MACO, Support Vector Machine (SVM) and Decision-Tree and Support Vector Machine (DT-SVM).- Classification using Generalization Based Decision Tree Induction along with Relevance Analysis Based on Relational Database
Abstract Views :196 |
PDF Views:3
Authors
Affiliations
1 Charotar Institute of Technology Changa, Gujarat, IN
2 Charotar Institute of Technology, Changa, Gujarat, IN
1 Charotar Institute of Technology Changa, Gujarat, IN
2 Charotar Institute of Technology, Changa, Gujarat, IN