Interscience Open Access Journals

Displaying 321-360 of 428 results

  • White Papers // Jul 2011

    Improving Routing Efficiency Based on Random Direction Mobility Model in Manets

    Major issue arising in Mobile Ad hoc NETworks (MANETs) is the selection of the optimal path between any two nodes. A method that has been advocated to improve routing efficiency is to select the most stable path so as to reduce the latency and the overhead due to re-routing instability...

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  • White Papers // Jul 2011

    Detecting & Eliminating Rogue Access Point in IEEE 802.11 WLAN

    Rogue Access Points (RAPs) is one of the leading security threats in current network scenario, if not properly handled in time could lead from minor network faults to serious network failure. Most of the current solutions to detect rogue access points are not automated and are dependent on a specific...

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  • White Papers // Jul 2011

    Attacks in Wireless Networks

    Communications in wireless networks has been facilitating numerous emerging applications that require packet delivery from one or more senders to multiple receivers. Communications are susceptible to various kinds of attacks due to insecure wireless channels. Communications in wireless networks remains a challenging and critical issue. This paper presents recent advances...

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  • White Papers // Jul 2011

    A Comparative Study on Privacy Preserving Association Rule Mining Algorithms

    The field of privacy has seen rapid advances in recent years because of the increases in the ability to store data. In particular, recent advances in the data mining field have lead to increased concerns about privacy. Privacy-preserving data mining has been studied extensively, because of the wide proliferation of...

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  • White Papers // Jul 2011

    Combining Retrieval With Ontology Browsing

    The Semantic Web provides a way to encode information and knowledge on web pages in a form that is easier for computers to understand and process. For Semantic Web documents to have an impact, they will have to be compatible with Web based indexing and retrieval. There are techniques to...

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  • White Papers // Jul 2011

    Effective Method of Age Dependent Face Recognition

    This Automatic age dependent face recognition system is developed. This approach is based on the Principle Component Analysis (PCA). Eigen face approach is used for both age prediction and face recognition. Face database is created by aging groups individually. The age prediction is carried out by projecting a new face...

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  • White Papers // Jul 2011

    Performance Comparison of Rule Based Classification Algorithms

    Classification based on Predictive Association Rules (CPAR) is a kind of association classification methods which combines the advantages of both associative classification and traditional rule-based classification. For rule generation, CPAR is more efficient than traditional rule-based classification because much repeated calculation is avoided and multiple literals can be selected to...

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  • White Papers // Jul 2011

    Selection of Optimal Discount of Retail Assortments with Data Mining Approach

    Recently, the capabilities of generating and collecting data have been increasing rapidly. Widespread use of bar codes for most commercial products, the computerization of many business, and the advance in data collection tools have provided the users with huge amount of retail data. This explosive growth in data and databases...

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  • White Papers // Jul 2011

    A System for Outlier Detection of High Dimensional Data

    In high dimensional data large no of outliers are embedded in low dimensional subspaces known as projected outliers, but most of existing outlier detection techniques are unable to find these projected outliers, because these methods perform detection of abnormal patterns in full data space. So, outlier detection in high dimensional...

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  • White Papers // Jul 2011

    Authenticated Connection establishment in Web Applications using Steganography

    A web application is an application that is accessed over a network such as the Internet or an intranet. Web applications are popular due to the ubiquity of web browsers, and the convenience of using a web browser as a client, sometimes called a thin client. The ability to update...

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  • White Papers // Jul 2011

    Model Based Approach to Prevent SQL Injection Attacks on .NET Applications

    Web applications support static and dynamic queries to access the database. Dynamic queries take input from the user and use that input to form the query. A user can give malicious input to the application which results in an incorrect query or an unauthorized query and performs vulnerable action on...

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  • White Papers // Jul 2011

    An Efficient Regression Testing by Computing Coverage Data for Software Evolution

    Software systems is evolve continuously during development and maintenance. After software is modified regression testing is applied to software to ensure that It behaves intended and modifications not negatively impacts its original functionality. It is time consuming to rerun test suite T of program Pi on modified program Pi+1. So,...

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  • White Papers // Jul 2011

    Dynamic Detection of Packet Losses by CRDP

    TCP has provided the primary means to transfer data reliably across the Internet; however, TCP has imposed limitations on several applications. Measurement and estimation of packet loss characteristics are challenging due to the relatively rare occurrence and typically short duration of packet loss episodes. While active probe tools are commonly...

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  • White Papers // Jul 2011

    Star Varietal Cube: A New Large Scale Parallel Interconnection Network

    This paper proposes a new interconnection network topology, called the Star varietal-cube SVC (n, m), for large scale multicomputer systems. The authors take advantage of the hierarchical structure of the Star graph network and the Varietal hypercube to obtain an efficient method for constructing the new topology. The Star graph...

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  • White Papers // Jul 2011

    Detection of Phishing Websites and Secure Transactions

    Phishing is an electronic online identity theft in which the attackers use a combination of social engineering and web site spoofing techniques to trick a user into revealing confidential information. It steals the user's personal identity data and financial credentials. Most of the phishing attacks emerge as spoofed E-Mails appearing...

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  • White Papers // Jul 2011

    Integrated Approach of Malicious Website Detection

    With the advent and the rising popularity of Internet, security is becoming one of the focal point. At present, Web sites have become the attacker's main target. The attackers uses the strategy of embedding the HTML tags, the script tag to include web-based Trojan scripting or redirector scripting, the embedded...

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  • White Papers // Jul 2011

    An Implementation of Botnet Detection Algorithm for Grid Networks

    Grid is an emerging technology that aims at utilizing resources efficiently and effectively, A botnet is a collection of infected computers and the common attacks are a Distributed Denial Of Service attack (DDOS) is any type of attack on a networking structure to disable a server from servicing its clients....

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  • White Papers // Jul 2011

    Embedded Wireless Based Communications in Oilfield & Providing Security System

    The area of the oilfield is much wider. Oil exhauster continuous working for 24 hours. As the problem of petroleum being stolen, transmission line being stolen, and transformer being stolen exists which requires the strong secures management system. With Consideration of the objective condition restriction of geographical environment, the implementation...

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  • White Papers // Jul 2011

    Review on Main Memory Database

    The idea of using Main Memory DataBase (MMDB) as physical memory is not new but is in existence quite since a decade. MMDB have evolved from a period when they were only used for caching or in high-speed data systems to a time now in twenty first century when they...

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  • White Papers // Jul 2011

    Designing of an Automated Power Meter Reading With Zigbee Communication

    This paper presents the design and implementation of Automatic Power Meter (APM), The APM is implemented using an ARM and Zigbee Based power meter Communication Module. The design presents a new methodology for avoiding the high construction and maintenance costs in the existing meter reading technology. Using an APM with...

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  • White Papers // Jul 2011

    Extending UML for Multidimensional Modeling in Data Warehouse

    Multidimensional modeling is the foundation of data warehouses, MD databases, and On-Line Analytical Processing (OLAP) applications. Nowadays Dimensional modeling and object-orientation are becoming growing interest areas. In the past few years; there have been many proposals, for representing the MD properties at the conceptual level. However, none of them has...

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  • White Papers // Jul 2011

    Dynamic Thread Pool Based Service Tracking Manager

    The Service Tracking Manager (STM) application is a management software that integrates, collects, and manages alerts/events information from Casino Management Systems. It allows casinos to track alerts and events at different locations. Casinos staff attends to various kinds of requests. The requests can be for providing customer service, handle events...

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  • White Papers // Jul 2011

    Performance Analysis of Secured Synchronous Stream Ciphers

    The new information and communication technologies require adequate security. In the past decades, the authors have witnessed an explosive growth of the digital storage and communication of data, triggered by some important breakthroughs such as the Internet and the expansive growth of wireless communications. In the world of cryptography, stream...

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  • White Papers // Jul 2011

    Group-Key Management Model for Worldwide Wireless Mesh Networks

    Wireless Mesh Network (WMN) is an upcoming wireless network technology and is mainly used to provide broadband internet in remote locations. It is characterized by minimum fixed infrastructure requirement and is operated in an open medium, such that any user within the range covered by mesh routers may access the...

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  • White Papers // Jul 2011

    Secure Biometric Cryptosystem for Distributed System

    Information (biometric) security is concerned with the assurance of confidentiality, integrity, and availability of information in all forms, biometric information is very sophisticated in terms of all, in this paper, the authors are focusing on data pattern along with all security assurance, so that they can improve the matching performance...

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  • White Papers // Jul 2011

    A Novel Approach for Privacy Preserving in Video Using Extended Euclidean Algorithm Based on Chinese Remainder Theorem

    The development in the modern technology paved a path in the utilization of surveillance cameras in streets, offices and other areas but this significantly leads a threat to the privacy of visitors, passengers or employees, leakage of information etc.. To overcome this threat, privacy and security needs to be incorporated...

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  • White Papers // Jul 2011

    An Efficient Approach Formulation of Social Groups of User Calls of GSM

    The people are living in a world of wireless technology. The most widely used wireless i.e. mobile computing device today is the Mobile phone, can be used not only for voice and data communications but also as a computing device running context aware applications. In this paper, the authors present...

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  • White Papers // Jul 2011

    Performance Comparison of IACO,AODV Networking Routing Protocols

    There are several standard protocols for Mobile Ad hoc NETworks (MANET) that have been developed for devices with higher computing features. The Efficient routing protocols can provide significant benefits to mobile ad hoc networks, in terms of both performance and reliability. Many routing protocols for such networks have been proposed...

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  • White Papers // Jul 2011

    An Effective Time Management Schema in WSNs

    WSN usually consists of a large number of resource constraint sensor nodes that are generally deployed in unattended/hostile environments and Existing security designs mostly provide a hop-by-hop security paradigm. Furthermore, existing security designs are also vulnerable to many types of Denial of Service (DoS) attacks, such as random node capture...

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  • White Papers // Jul 2011

    Periodically Updating the Content in Mobile Ad Hoc Network With Secured Synchronization

    The content and presence updates were used to transmit updates to nearby nodes over an ad hoc network using duty cycles; the authors' algorithms synchronize the transmissions of nodes periodically. By this approach, nodes can save battery power without missing updates from their neighbours by switching off their network cards....

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  • White Papers // Jul 2011

    An Improvement of Centroid Algorithm Based on Distance in Wireless Sensor Network

    In Wireless Sensor Network (WSN), estimating the exact position of sensor node is an important research problem and its location accuracy impacts the efficiency of localization algorithms. In this paper improved centroid range free localization method is proposed and comparison with conventional centroid is done by varying different parameters such...

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  • White Papers // Jul 2011

    Audio Streaming Over Low Data Rate Wireless System

    Audio applications over wireless networks have recently emerged as a promising research field. However, the limits in terms of communication bandwidth and transmission power have withstood the design of low-power embedded nodes for audio communication. In this paper, the authors describe the implementation details of an embedded system for the...

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  • White Papers // Jul 2011

    Wireless Testing Tool for Wireless Routers

    Wireless test tool is a powerful tool for wireless network monitor and analyzer for 802.11 a/b/g/n networks. Loaded with many user-friendly features, Wireless test tool for Wi-Fi combines performance and flexibility with an ease of use in the industry. Wireless test tool for Wi-Fi captures every packet on the air...

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  • White Papers // Jul 2011

    False Data Detection in Wireless Sensor Network With Secure Communication

    The security of wireless sensor networks is a challenging problem in the process of data aggregation. As data are send though sensor network confidentiality plays and important role between sink and destination. An efficient secure data aggregation is proposed to enhance the data security of wireless sensor networks. In wireless...

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  • White Papers // Jul 2011

    Dynamic Transmission Power Assignment for Energy Conservation Routing in MANETs

    Wireless networks are formed by the devices that run on batteries, having limited amount of energy. Different actions of the nodes like transmitting, receiving, processing etc consume available energy. In order to increase the system's life-time, energy consumption has to be minimized. The Power Assignment Minimum Expected Energy and Reliable...

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  • White Papers // Jul 2011

    Reliable Routings in Networks With Generalized Link Failure Events

    Traditional methods for ensuring reliable transmissions in circuit-switched networks rely on the pre computation of a backup path for every working path or for every network link. These methods work fine as long as the network experiences only single link failures. They do not guarantee undisturbed communication, however, in the...

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  • White Papers // Jul 2011

    Object Detection Using Am-Fm Features

    This paper presents a template-based approach to detect objects of interest from real images. The authors rely on AM-FM models and specifically, on the Dominant Component Analysis (DCA) for feature extraction. They incorporate the results from AM-FM models for object detection. In order to detect the object of interest from...

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  • White Papers // Jul 2011

    Mobile Communication

    Consumers demand more from their technology. Whether it be a television, cellular phone, or refrigerator, the latest technology purchase must have new features. With the advent of the Internet, the most-wanted feature is better, faster access to information. Cellular subscribers pay extra on top of their basic bills for such...

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  • White Papers // Jul 2011

    Role of Feature Selection in Intrusion Detection Systems for 802.11 Networks

    Intrusion Detection Systems are important for protecting network and its resources from illegal penetration. For 802.11network, the features used for training and testing the intrusion detection systems consist of basic information related to the TCP/IP header, with no considerable attention to the features associated with lower level protocol frames. The...

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  • White Papers // Jul 2011

    Design and Implementation of an Enhanced DDS Based Digital Modulator for Multiple Modulation Schemes

    This paper deals with the design & implementation of a Digital Modulator based on the FPGA. The design is implemented using the Enhanced Direct Digital Synthesis (DDS) Technology. The basic DDS architecture is enhanced with the minimum hardware to facilitate the complete system level support for different kinds of Modulations...

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  • White Papers // May 2011

    Channel Equalization With Single Interference Technique Based on FFT for Efficient OFDM System

    In today's scenario the over sampled OFDM system performance is significantly improved if the deep faded symbols on the sub carriers of each over sampled OFDM signal are discarded and then reconstructed from the remaining OFDM signal by a time domain iterative algorithm. Base on the results of FFT in...

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  • White Papers // Jan 2012

    Digital Watermarking Technique Used for Security of Digital Images During Broadcasting and Telecasting by Using DWT

    Signals are any time varying quantity having lot of Information and have its own frequency. Signal can be classified into random signal, periodic signals, and non-periodic signals, discrete or digital signal. Signal may contain various data like audio, video, or in text format. Signal also has information like images. But...

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  • White Papers // Jan 2012

    Performance Analysis of MIMO SFBC CI-COFDM System Against the Nonlinear Distortion and Narrowband Interference

    Carrier Interferometry Coded Orthogonal Frequency Division Multiplexing (CI-COFDM) system has been widely studied in multi-carrier communication system. The CI-COFDM system spreads each coded information symbol across all N sub-carriers using orthogonal CI spreading codes. The CI-COFDM system shows the advantages of Peak to Average Power Ratio (PAPR) reduction, frequency diversity...

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  • White Papers // Jan 2012

    Simulation of a Real-Time Bus Arrival Predictor Using RFID and LabVIEW

    Most college and office goers in India use the public buses for daily commuting. The bus network caters to the need of thousands who find it an affordable means of transport. However, the absence of real-time updates in the system poses some very serious problems during the exit period. Large...

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  • White Papers // Jan 2012

    Optimal Allocation of FACTS Devices by Using Multi-Objective Optimal Power Flow and Genetic Algorithms

    The introduction of the Flexible AC Transmission System (FACTS) in the power system reduces the losses, reduces the cost of the generation, improves the stability and also improves the load capability of the system. Some application of the Flexible AC Transmission System (FACTS) technologies to existing high voltage power system...

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  • White Papers // Jan 2012

    The Design and Development of Microstrip Patch Antenna Using Simulation Studies by ADS

    The matching network of a Microstrip Patch Antenna at 10.65 GHz was designed and developed using the software Advanced Design System (ADS). ADS is powerful software for designing microwave electronic circuits. The Microstrip Patch antenna thus developed was tested at 10m Far Field Antenna Anechoic Chamber and Momentum Simulation studies...

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  • White Papers // Jan 2012

    Carrier to Noise Ratio Performance Evaluation for Optical SSB Signal in Radio Over Fiber System

    The optical and wireless communication systems convergence will activate the potential capacity of photonic technology for providing the expected growth in interactive video, voice communication and data traffic services that are cost effective and a green communication service. The last decade growth of the broadband internet projects the number of...

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  • White Papers // Mar 2012

    An Improved Face Recognition Using Neighborhood Defined Modular Phase Congruency Based Kernel PCA

    A face recognition algorithm based on NMPKPCA algorithm presented in this paper. The proposed algorithm when compared with conventional Principal Component Analysis (PCA) algorithms has an improved recognition Rate for face images with large variations in illumination, facial expressions. In this technique, first phase congruency features are extracted from the...

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  • White Papers // Jul 2011

    Performance Comparison of IACO,AODV Networking Routing Protocols

    There are several standard protocols for Mobile Ad hoc NETworks (MANET) that have been developed for devices with higher computing features. The Efficient routing protocols can provide significant benefits to mobile ad hoc networks, in terms of both performance and reliability. Many routing protocols for such networks have been proposed...

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  • White Papers // Oct 2011

    A High Performance DDR3 SDRAM Controller

    The paper presents the implementation of compliant DDR3 memory controller. It discusses the overall architecture of the DDR3 controller along with the detailed design and operation of its individual sub blocks, the pipelining implemented in the design to increase the design throughput. It also discusses the advantages of DDR3 memories...

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  • White Papers // Oct 2011

    EARM: An Efficient and Adaptive File Replication With Consistency Maintenance in P2P Systems

    In p2p systems, file replication and replica consistency maintenance are most widely used techniques for better system performance. Most of the file replication methods replicates file in all nodes or at two ends in a client-server query path or close to the server, leading to low replica utilization, produces unnecessary...

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  • White Papers // Oct 2011

    Proposed Design for Circular Antenna and Half Ring Antenna for UWB Application

    In this paper, Ultra wideband planar circular patch and half circular ring patch antennas are proposed. These newly simulated structures are proposed for fabrication. The antennas are suitable for operating frequency of 7.5 GHz. It is shown that return loss of the both the antennas at 7.5 GHz is better...

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  • White Papers // Oct 2011

    MBER Space Time Equalization Assisted Multiuser Detection

    A novel Minimum Bit-Error Rate (MBER) Space-Time-Equalization (STE)-based Multi-User Detector (MUD) is proposed for multiple-receive-antenna-assisted space-division multiple-access systems. It is shown that the MBER-STE-aided MUD significantly outperforms the standard minimum mean-square error design in terms of the achievable Bit-Error Rate (BER). Adaptive implementations of the MBER STE are considered, and...

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  • White Papers // Jun 2011

    Performance Analysis of a Cellular System Using C-OFDM Techniques

    The basic idea of COFDM is to split the modulation samples of incoming data stream onto a large number of carriers instead of modulating a unique carrier. Therefore, COFDM is an effective technique for combating multi-path fading and for high-bit-rate transmission over wireless channel. In a single carrier system a...

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  • White Papers // Dec 2010

    Dual-Failure Survivability for Multi Quality Data Using Single pcycle

    Dual-failure scenarios are a real possibility in today's optical networks and it is becoming more and more important foe carriers and network operators to consider them when designing their networks. The p-Cycle is a recent approach in optical network protection. The p-Cycle use preconnected cycles of spare capacity to restore...

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  • White Papers // Dec 2010

    Time Analysis of the State Space of Real-Time Preemptive Systems

    The authors present in this paper an algorithm making it possible an efficient time analysis of the state space of preemptive real time systems modeled using Time Petri Nets with inhibitor arcs. For this effect, they discuss how to determine from the reachability graph linear and quantitative properties of the...

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  • White Papers // Dec 2010

    An Alternate Idea for Storage Optimization in Search Engine

    The authors propose an alternate indexing storage technique of Search Engine. In this approach, they achieve reduced space complexity. They try to decrease time complexity for faster data retrieval and decrease storage space for efficient utilization of space. This paper provides an algorithm of indexing mechanism by which effective storage...

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  • White Papers // Nov 2010

    A Statistical Approach for Voiced Speech Detection

    Detection of Voice in speech signal is a challenging problem in developing high-performance systems used in noisy environments. In this paper, the authors present an efficient algorithm for robust voiced speech detection and for the application to variable-rate speech coding. The key idea of the algorithm is considering speech energy...

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  • White Papers // May 2012

    A Fuzzy Implementation of Biometrics With Five Factor Authentication System for Secured Banking

    Remote authentication is the most commonly used method to determine the identity of a remote client. Secure and efficient authentication scheme has been a very important issue with the development of networking technologies. In a Generic Framework for Authentication, preserving security and privacy in distributed systems provide three factors for...

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  • White Papers // May 2012

    Normalized Transfer of Bulk Data By Using UDP in Dedicated Networks

    High speed bulk data transfer is an important part of many data-intensive scientific applications. TCP fails for the transfer of large amounts of data over long distance across high-speed dedicated network links. Due to system hardware is incapable of saturating the bandwidths supported by the network and rise buffer overflow...

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  • White Papers // May 2012

    End-to-End Delay Optimization in Wireless Sensor Network (WSN)

    In this paper, the authors are interested in optimizing the delay of event-driven wireless sensor networks, for which events does not occur frequently. In such systems, most of the energy is consumed when the radios are on, waiting for an arrival to occur. Sleep-wake scheduling is an effective mechanism to...

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  • White Papers // May 2012

    Performance Evaluation of Extended AODV Using Different Scenarios

    The mobile ad hoc networks have become a major component of the future network development due to their ease of deployment, self configurability; flexibility and independence on any existing network infrastructure Mobile ad-hoc network have the attributes such as wireless connection, continuously changing topology, distributed operation and ease of deployment....

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  • White Papers // May 2012

    Development of Empirical Mode Decomposition

    In this paper, one of the tasks for which empirical mode decomposition is potentially useful is nonparametric signal denoising, an area for which wavelet thresholding has been the dominant technique for many years. In this paper, the wavelet thresholding principle is used in the decomposition modes resulting from applying EMD...

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  • White Papers // May 2012

    QoS Routing in Mobile Ad-Hoc Networks Using Agents

    Quality of Service (QoS) provisioning in a Mobile Ad-hoc NETwork (MANETs) routing for multimedia traffic is a challenging task due to dynamic topology of such networks. Fuzzy Logic (FL) was used for QoS prediction from current uncertain QoS constraints in the network for particular applications, from these uncertain constraints there...

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  • White Papers // May 2012

    An Efficient Key Management Scheme for Secure Data Access Control in Wireless Broadcast Services

    Wireless broadcast is an effective approach to disseminate data to a number of users. To provide secure access to data in wireless broadcast services, symmetric key - based encryption is used to ensure that only users who own the valid keys can decrypt the data. Regarding various subscriptions, an efficient...

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  • White Papers // May 2012

    Quality of Service Based Handover Approach in a WLAN Network

    As the technology is improving so are the demands of end users and their applications increasing. A wide variety of new applications are being invented daily. These applications have different demands from the underlying network protocol suite. High bandwidth internet connectivity has become a basic requirement to the success of...

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  • White Papers // May 2012

    Dual-Hop OSTBC Transmissions Over Fading Channels Under Receiver Phase Noise for Regenerative Systems

    Space-time coding for fading channels is a Communication technique that realizes the diversity benefits of multiple transmit antennas. Previous work in this area has focused on the narrowband flat fading case where spatial diversity only is available. In this paper, the authors investigate the use of space-time coding in OFDM...

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  • White Papers // May 2012

    Route Request Flooding Attack Using Trust Based Security Scheme in Manet

    In recent years, the use of Mobile Ad hoc NETworks (MANETs) has been widespread in many applications, including some mission critical applications, and as such security has become one of the major concerns in MANETs. A mobile ad hoc network is set up with a group of mobile wireless nodes...

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  • White Papers // Dec 2010

    Applications of Two Dimensional Cellular Automata Rules for Block Cipher in Cryptography

    Cellular Automaton is an idealized parallel processing machine which is an array (1-D, 2-D) of numbers or symbols called cell values together with an updating rule. A cell value is updated based on this updating rule, which involves the cell value as well as other cell values in a particular...

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  • White Papers // Dec 2010

    Designing a Cryptosystem by Implementing Reversible Sequential Switching M/C - A Symmetric Key Approach

    This paper introduces an abstract model of reversible sequential machine in designing the cryptosystem based on the symmetric key approach. A reversible sequential machine is a one-to-one mapping old state and input to new state and output. Reversible computing machine is the mapping of old computational state to new computational...

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  • White Papers // Dec 2010

    Cryptanalysis of the Fast Lightweight Mutual Authentication Protocol

    Security counts as a critical barrier to continuing growth of RFID industry due to lack of a proper high performance lightweight protocol-based solution. Amongst recent developments the Fast Lightweight Mutual Authentication Protocol (FLMAP) has been accepted for its superior speed and low complexity features. Here, the authors examine the security...

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  • White Papers // Dec 2010

    Semantic Learning and Web Image Mining With Image Recognition and Classification

    Image mining is more than just an extension of data mining to image domain. Web Image mining is a technique commonly used to extract knowledge directly from images on WWW. Since, main targets of conventional Web mining are numerical and textual data, Web mining for image data is on demand....

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  • White Papers // Nov 2010

    Studying Security Issues in HPC (Super Computer) Environment

    HPC has evolved from being a buzzword to becoming one of the most exciting areas in the field of Information Technology & Computer Science. Organizations are increasingly looking to HPC to improve operational efficiency, reduce expenditure over time and improve the computational power. Using Super Computers hosted on a particular...

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  • White Papers // Aug 2010

    Development of Optical Character Recognition Software Package for Mobile Phones

    Optical Character Recognition (OCR) is a technique through which any textual information contained in images are extracted and converted into editable text format. The various OCR software packages which are available in desktop computer with scanner suffer from one primary constraint-MOBILITY. The authors have developed an OCR application for mobile...

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  • White Papers // Aug 2010

    Probabilistic Neural Network Based Approach for Handwritten Character Recognition

    In this paper, recognition system for totally unconstrained handwritten characters for south Indian language of Kannada is proposed. The proposed feature extraction technique is based on Fourier Transform and well known Principal Component Analysis (PCA). The system trains the appropriate frequency band images followed by PCA feature extraction scheme. For...

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  • White Papers // Aug 2010

    Time Domain Signal Detection for MIMO OFDM

    The MIMO techniques with OFDM is regarded as a promising solution for increasing data rates, for wireless access qualities of future wireless local area networks, fourth generation wireless communication systems, and for high capacity, as well as better performance. Hence as part of continued research, in this paper an attempt...

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  • White Papers // Aug 2010

    Practical Quantum Cryptography for Secure Free-Space Communications

    Quantum Cryptography is an emerging technology in which two parties may simultaneously generate shared, secret cryptographic key material using the transmission of quantum states of light. The security of these transmissions is based on the inviolability of the laws of quantum mechanics and information - theoretically secure post-processing methods. An...

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  • White Papers // Aug 2010

    Design and Implementation of a (2,2) and a (2,3) Visual Cryptographic Scheme

    In this paper two methods for (2, 2) and (2, 3) Visual Cryptographic Scheme(VCS) is proposed. The first scheme considers 4 pixels of input image at a time and generates 4 output pixels in each share. As 4 output pixels are generated from 4 input pixels dimension and aspect ratio...

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  • White Papers // Aug 2010

    A Simple Scheme for Visual Cryptography

    Here an algorithm is proposed to implement (2, 2) secret sharing problem which reduces the size (resolution) of the generated shares. Instead of considering one pixel at a time to generate the share, two consecutive pixels of the original image are considered row wise. Finally a pixel share having six...

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  • White Papers // Aug 2010

    Elliptic Curve Cryptosystem for Email Encryption

    The idea of information security lead to the evolution of cryptography. In other words, cryptography is the science of keeping information secure. It involves encryption and decryption of messages. The core of cryptography lies in the keys involved in encryption and decryption and maintaining the secrecy of the keys. Another...

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