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Science and Development Network (SciDev.Net)
(739 results)-
Whitepapers
Web Performance Analysis of Open Source Server Virtualization Techniques
October 1, 2011, 12:00am PDT
Server construction using a server virtualization technique has increased due to its advantages including strengthening security, saving storage and costs, and efficient resource utilization....
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Performance Enhancement of Wireless Datalink Modem Using Channel Coding
October 1, 2011, 12:00am PDT
In this paper the model having D8PSK modulation applied by channel coding of Convolution Turbo Code (CTC) was designed and analyzed to improve the performances of wireless communication system for...
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Whitepapers
A Robust Secured Mobile IPv6 Mechanism for Multimedia Convergence Services
October 1, 2011, 12:00am PDT
Mobile IPv6 has been developed to enable mobility in IP networks for mobile terminals. Mobile IPv6 security standardization is still ongoing and security issues are one of the primary...
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Whitepapers
A Key Distribution and Management Scheme for Hierarchical Wireless Sensor Network
July 1, 2011, 12:00am PDT
The nodes of Wireless Sensor Networks (WSNs) are deployed in hostile environments faces the security problem of eavesdropping and capturing by an adversary. To achieve the security of this...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Design and Development of Multimedia Network System for eLearning in Nigerian Universities
July 1, 2011, 12:00am PDT
Various technologies have been explored for distance learning in recent times. Such include correspondence, instructional television, instruction radio, and recently web-based systems. These...
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Whitepapers
A Generation Method of MPEG-4 3D Scene for Mobile Environments
April 1, 2011, 12:00am PDT
MPEG-4 LASeR as a standard was established for expressing rich media within a mobile environment. It is difficult to describe 3D nodes of MPEG-4BIFS, however, because LASeR can view only 2D...
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Whitepapers
A New Algorithm to Route Multimedia Traffic in Optical Networks with Improved Call Blocking Characteristics
April 1, 2011, 12:00am PDT
Multimedia applications present new challenges to the current networking technology. One of them is Quality of Service (QoS) requirement. Due to the increasing dynamics of traffic introduced by...
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Whitepapers
A New Programmable RF System for System- On-Chip Applications
April 1, 2011, 12:00am PDT
This paper presents a new programmable Radio Frequency (RF) system for a System-on-Chip (SoC) transceiver. A 5-GHz low noise amplifier (LNA) is integrated with an on-chip programmable RF circuits...
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Whitepapers
Effective Distance Learning in Developing Countries Using Mobile and Multimedia Technology
April 1, 2011, 12:00am PDT
Although the developments of multimedia technology and internet networks have contributed to immense improvements in the standard of learning as well as distance learning in developed world, the...
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Whitepapers
Scalable Intrusion Detection with Recurrent Neural Networks
January 1, 2011, 12:00am PST
The one-size-fits-all format adopted by most existing intrusion detection systems, has not succeeded in eradicating network attacks that are ever-changing in their nature. Furthermore, such IDS is...
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Whitepapers
Software Process Improvization Framework Based on Fuzzy Logic Approach for Optimizing Indian Small Scale Software Organizations
January 1, 2011, 12:00am PST
In this paper, the researchers describe the results obtained after assessing the software process activities in five small to medium sized Indian software companies. This paper demonstrates a cost...
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Whitepapers
Face Recognition Using SIFT Descriptor Under Multiple Paradigms of Graph Similarity Constraints
October 1, 2010, 12:00am PDT
Biometric systems are considered as human pattern recognition systems that can be used for individual identification and verification. The decision on the authenticity is done with the help of...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Energy Efficiency of Collaborative Communication with Imperfect Frequency Synchronization in Wireless Sensor Networks
October 1, 2010, 12:00am PDT
Collaborative communication produces significant power gain and overcomes the effect of fading. With imperfect frequency synchronization significant but slightly less than N2 power can be...
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Whitepapers
Development of Simulation Model in Heterogeneous Network Environment: Comparing the Accuracy of Simulation Model for Data Transfers Measurement Over Wide Area Network (WAN)
October 1, 2010, 12:00am PDT
The authors present a novel approach for the measurement of one-way delays and throughput between network nodes in heterogeneous environment over Wide Area Network (WAN). This paper investigates...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Covert Channel Communication by Betterment Steganography
July 1, 2010, 12:00am PDT
This paper is presenting a betterment steganographic method for covert channel communication. Two distinct methods are combined to achieve possibly high data hiding capability with high visual...
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Whitepapers
Dynamically Self-Adapting and Growing Intrusion Detection System
July 1, 2010, 12:00am PDT
The ever-growing use of the Internet comes with a surging escalation of communication and data access. Most existing intrusion detection systems have assumed the one-size-fits-all solution model....
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Efficient Handover Scheme of Proxy Mobile IPv6 in Wireless Local Area Networks
April 1, 2010, 12:00am PDT
The IEEE 802.11 based WLAN is widely used because of its low cost and high data rate not only in a small office but also in a public hot spot. To support IP mobility of a mobile node in WLAN the...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Anonymity Leakage Reduction in Network Latency
January 1, 2010, 12:00am PST
Each Internet communication leaves trails here or there, that can be followed back to the user. Notably, anonymous communication schemes are purposed to hide users' identity as to personal, source...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Parallel Mass Transfer Simulation of Nanoparticles Using Nonblocking Communication
January 1, 2010, 12:00am PST
This paper presents experiences and results obtained in optimizing parallelization of the mass transfer simulation in the High Gradient Magnetic Separation (HGMS) of nano-particles using...
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Whitepapers
Possibilities and Limitations of Context Extraction in Mobile Devices: Experiments with a Multi-Sensory Personal Device
October 1, 2009, 12:00am PDT
This paper describes a context extraction framework for a mobile device that equips a variety of sensors. The framework captures context about a user and her surrounding environment; the...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Ubiquitous Secretary: A Ubiquitous Computing Application Based on Web Services Architecture
October 1, 2009, 12:00am PDT
Due to the extensive availability of wireless internet connectivity and low cost light weight mobile devices, an omnipresent customizable service is not a vision anymore. With enhanced wireless...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Service-Based Methodology for RFID-Smart Objects Interactions in Supply Chain
July 1, 2009, 12:00am PDT
Automatic Data Capture and RFID technologies (Radio Frequency IDentification) can be found in many industrial applications, mostly for product identification and traceability in the supply chain....
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Quantum Way to Data Hiding
April 1, 2009, 12:00am PDT
Though security is nothing new, the way that security has become a part of user's daily lives today is unprecedented. Today, steganography is most often associated with the high-tech variety,...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Optimizing Channel Access in Wireless Local Area Network Environments with a New Backoff Approach
April 1, 2009, 12:00am PDT
Over the past few years, several backoff algorithms such as Exponential Increase Exponential Decrease (EIED) and Adaptive Enhanced Distributed Coordination Function (AEDCF)) have been proposed for...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Network Recourses (NOW) to Remove the Work Load for Deriving Rule for Semantic Query Optimization and Speed Up Answering Queries
April 1, 2009, 12:00am PDT
The rapid growth in the size of databases and the advances made in query languages has resulted in increased SQL query complexity submitted by users, which in turn slows down the speed of...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Scalable QoS Device for Broadband Access to Multimedia Services
April 1, 2009, 12:00am PDT
Now-a-days, an increasing number of users get high-speed broadband access to the Internet. These broadband connections make new multimedia applications possible. However, such applications also...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Query Processing Algorithm in Wireless Sensor Networks
April 1, 2009, 12:00am PDT
Sensors have a function to gather environmental data in sensor networks. They operate by limited, small-size battery depending on applications. Thus there are several kinds of research efforts to...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Fuzzy Algorithm of Peer Selection for P2P Streaming Media System Based on Gossip Transmission Protocol
January 1, 2009, 12:00am PST
The traditional Gossip protocol selects the neighbor nodes randomly. It does not consider the factors, such as the capacities of network transmission and node storage, which affect the network...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Energy-Balanced Parameter-Adaptable Protocol Design in Cooperative Wireless Sensor Networks
January 1, 2009, 12:00am PST
The performance of Wireless Sensor Networks (WSNs) is adversely affected by the radio irregularity and fading effect. Cooperation is introduced into WSNs and serves as an effective way to combat...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Towards Developing Attentive Wireless Sensor Networks
January 1, 2009, 12:00am PST
The large, rapidly growing field of Wireless Sensor Networks (WSNs) offers the ability to collect and process massive amounts of information from various environments. This distributed data...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Cryptographic Key Assignment Scheme With Adaptable Time-Token Constraint in a Hierarchy
October 1, 2008, 12:00am PDT
A scheme, which uses flexible cryptographic key management upon adaptable time-token constraint for a User Hierarchy Access Control (UHAC) scheme, is proposed in this paper. For adapting the...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
An IMS based Inter-Working Solution for Multimedia Service in a Converged Network
October 1, 2008, 12:00am PDT
In the evolution of traditional telecom network towards a converged next generation network, Inter-working is always challenging due to different name spaces and routing mechanism across different...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Ubiquitous Web Access: Collaborative Optimization and Dynamic Content Negotiation
July 1, 2008, 12:00am PDT
Traditionally, cellular wide area networks like UMTS are used as Internet access networks for particular users but, in some cases, they can be employed to provide Internet access to other smaller...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Novel Technique for Real-Time Internet Radio Recorder on Non-DSP Embedded System
July 1, 2008, 12:00am PDT
The capability of providing real-time multimedia player over the Internet is an important future application for embedded system. However, the main challenge of such an application is the...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Community Based Context-Aware Information for the Intelligent Personalized Information Service
July 1, 2008, 12:00am PDT
With the advent of ubiquitous computing environments, it has become increasingly various context-aware technology implemented. It is researched, however, rather than providing a simple situations,...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Broadcasting with the Least Energy is an NP-Complete Problem
July 1, 2008, 12:00am PDT
Energy conservation is an important issue in wireless networks. The authors propose a method for estimating the least amount of energy needed for broadcasting a message to all nodes in the...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Self-Healing Mechanism for Reliable Computing
April 1, 2008, 12:00am PDT
One of the four major processes of an autonomic computing system is to free people from discovering, recovering, and failures, this process is called self-healing. Systems designed to be...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
QoS Aware and Service-Oriented Workflow on GRID
April 1, 2008, 12:00am PDT
As the main computing paradigm for resource-intensive scientific applications, Grid enables resource sharing and dynamic allocation of computational resources. Large-scale grids are normally...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Mechanism to Improve the Performance of Zone-Based Broadcasting Protocol in the Recovery Phase
April 1, 2008, 12:00am PDT
Wireless Sensor Networks (WSNs) have been widely used in environment monitoring to collect useful information. Packet broadcasting is an essential communication behavior for establishing a...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
BER-Minimizing Limited Feedback for Transmit Beamforming in MISO-OFDM Systems
April 1, 2008, 12:00am PDT
To implement transmit beamforming, which is an effective way of leveraging the diversity gains, for Multiple-Input Single-Output Orthogonal Frequency Division Multiplexing (MISOOFDM) systems,...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Aggregation Query Processing in P2P Networks
September 1, 2012, 12:00am PDT
Peer-to-peer (P2P) databases are becoming prevalent on the Internet for distribution and sharing of documents, applications, and other digital media. The problem of answering large-scale ad hoc...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Research of Formal Verification for SQL Operations in Top Level Specification of a Secure Database
September 1, 2012, 12:00am PDT
A high security level DBMS requires a formal specification and verification on the security model and top level specification design. The specification and verification towards SQL operations are...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
A Novel Class Imbalance Learning Using Intelligent Under-Sampling
September 1, 2012, 12:00am PDT
Class imbalance is a problem that is very much critical in many real-world application domains of machine learning. When examples of one class in a training data set vastly outnumber examples of...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
An Attempt to Dynamically Process Multi-Dimensional Data
September 1, 2012, 12:00am PDT
Cluster and outlier detection has always been one of data mining research interests. Numerous approaches have been designed to find clusters and detect outliers in various types of data sets. In...
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Whitepapers
High Performance Query Operations on Compressed Database
September 1, 2012, 12:00am PDT
In this paper, the authors have presented a loss-less compression technique namely H-HIBASE (compression enhancement of HIBASE technique using Huffman Coding). Due to disk based compression,...
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Whitepapers
HATS: High Accuracy Timestamping System Based on NetFPGA
September 1, 2010, 12:00am PDT
The delay and dispersion of the packet train have been widely used in most network measurement tools. The timestamp of the packet is critical for the measurement accuracy. However, timestamping...
Provided by Science and Development Network (SciDev.Net)
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Whitepapers
Priority Queue-Based Scheme to Maintain Quality of Service for Normal Users Suffering from Large DDoS Attacks
June 1, 2010, 12:00am PDT
In this paper, the authors focus on alleviating malicious traffic from DDoS attacks since many famous websites have been attacked by them and massive losses have been reported in recent years....
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Whitepapers
Pure Petri Nets for Software Verification and Validation of Semantic Web Services in Graphical Worlds
March 1, 2010, 12:00am PST
Software Verification and Validation (SVV) are major ingredients of current software engineering projects. Among the available methods to solve this problem, formal methods (although very costly...
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Whitepapers
Architecting Adaptable Security Infrastructures for Pervasive Networks Through Components
March 1, 2010, 12:00am PST
Security management in pervasive networks should be fundamentally flexible. The dynamic and heterogeneous character of these environments requires a security infrastructure which can be tailored...
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Whitepapers
Performance Analysis of Turbo Coded HSDPA Systems
September 1, 2009, 12:00am PDT
In this paper, the authors study the performance benefits of turbo coded HSDPA system. This paper provide an overview of High Speed Data Packet Access (HSDPA) and focus on the business values that...
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Whitepapers
Improvement to Geometric Linearization of gpICA Algorithm By Compensation and Multiple Points
September 1, 2009, 12:00am PDT
This paper presents two modifications of the gpICA (Geometric Post non-Linear Independent Component Analysis) algorithm. gpICA algorithm is a novel method to solve the PNL (Post non-linear)...
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Whitepapers
An Analysis of Parallel Approaches for a Mobile Robotic Self-Localization Algorithm
December 1, 2009, 12:00am PST
Self-localization is a fundamental problem in mobile robotics. It consists of estimating the position of a robot given a map of the environment and information obtained by sensors. Among the...
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Whitepapers
Efficient Routing Using Partitive Clustering Algorithms in Ferry-Based Delay Tolerant Networks
December 1, 2009, 12:00am PST
The Delay Tolerant Networks (DTNs) generally contain relatively sparse nodes that are frequently disconnected. Message Ferrying (MF) is a mobility-assisted approach which utilizes a set of mobile...
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Whitepapers
UML Modeling and Performance Evaluation of Multithreaded Programs on Dual Core Processor
July 1, 2009, 12:00am PDT
Modern Object oriented programming languages provide the facility of multithreading programming which provides concurrent execution of multiple threads within the same program. Basically, threads...
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Whitepapers
Cryptographic Protection of the Information and Algorithms of Enciphering
October 1, 2009, 12:00am PDT
In order to organize informational security the juridical documents, technical means and cryptographically algorithms, systematic, apparatus-systematic or apparatus-technical means are widely...
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Whitepapers
Designing Mobile Data Logging Framework Using Ubiquitous Computing Environment
October 1, 2009, 12:00am PDT
This paper is to develop a Ubiquitous framework which can record the incoming calls and sort them according to the service provider. This information will provide subsequent traffic on a...
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Whitepapers
Network Productivity and Quality Indicators of Broadband Connection Channels: A Review
October 1, 2009, 12:00am PDT
This paper is an review of modern methods of researching and estimation of productivity of IEE 802.11 protocol, based on Markov models and allows effectively estimate main indices of productivity...
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Whitepapers
Voiceprint Recognition Systems for Remote Authentication-A Survey
April 1, 2011, 12:00am PDT
Voiceprint recognition system also known as a Speaker Recognition System (SRS) is the best-known commercialized forms of voice Biometrics. Automated speaker recognition is the computing task of...
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Whitepapers
An Improved Discrete PSO with GA Operators for Efficient QoS-Multicast Routing
April 1, 2011, 12:00am PDT
QoS multicast routing is a non-linear combinatorial optimization problem that arises in many multimedia applications. Providing QoS support is crucial to guarantee effective transportation of...
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Whitepapers
A Robust Technique for Blind Multiuser CDMA Detection in Fading Channels
April 1, 2011, 12:00am PDT
This paper considers the blind multiuser reception problem for Direct Sequence Code Division Multiple Access (DS-CDMA) systems. A hybrid approach to the blind reception of linear Multiple-Input...
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Whitepapers
BER Performance Analysis of a FEC Encoded Multi-User MIMO MCCDMA Wireless Communication System
July 1, 2011, 12:00am PDT
In this paper, the authors made a comprehensive study to evaluate the performance of a multi-user MIMO MCCDMA wireless communication system. The channel encoded spatially multiplexed MIMO MCCDMA...
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Whitepapers
Performance Analysis of Network Technologies to Support Reliable Database System for Home Environment
October 1, 2011, 12:00am PDT
This paper presents performance evaluation of commercially available 200 Mbps power line communication and IEEE 802.11g & n products for supporting multimedia database system for home environment....
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Whitepapers
Integrated of Knowledge Management and E- Learning System
October 1, 2011, 12:00am PDT
Current knowledge management focus on knowledge acquisition, storage, retrieval and maintenance. E-Learning systems technology today is used primarily to handcraft training courses about carefully...
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Whitepapers
Biometric Authentication and Authorization System for Grid Security
October 1, 2011, 12:00am PDT
Dynamicity in the data sharing has resulted in resource usage being more and more distributed and more open in nature. The need for problem solving and the distributed nature of data has resulted...
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Whitepapers
A Study on the Automatic Malware Collecting System Based on the Searching Keyword
January 1, 2012, 12:00am PST
With the development of the Internet, many people are able share information freely, and check for information from various parts of the world in real time. Internet brought about the development...
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Whitepapers
Revised R-LDA Based ANN for Small Sample Size (SSS) Problem of Face Recognition
April 1, 2012, 12:00am PDT
A Face Recognition (FR) system is automatically identifying or verifying a personal face acquired from a digital camera or a image generation device. In order to do this, facial features from the...
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Whitepapers
Real-Time and Flexible Management of Storage Service Provider in Distributed Storage
April 1, 2012, 12:00am PDT
In distributed storage system, Storage Service Provider (SSP) is a critical component to receive and response these requests from clients. The authors propose a real-time and flexible management...
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Whitepapers
Harvesting Aware System for Sustainable Mobile Sensor Networks
April 1, 2012, 12:00am PDT
One of key challenges in deploying large-scale Wireless Sensor Network (WSN) is system longevity. In this paper, the authors propose a harvesting aware system of SMSN (Sustainable Mobile Sensor...
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Whitepapers
Real-Time Systems Modeling and Verification with Aspect-Oriented Timed State charts
April 1, 2012, 12:00am PDT
The modeling and verification of real-time systems is a challenging task in the area of software engineering. This paper proposes a formal method for modeling and verification of real-time systems...
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Whitepapers
Auto-Scaling Model for Cloud Computing System
April 1, 2012, 12:00am PDT
Recently, Cloud Computing introduces some new concepts that entirely change the way applications are built and deployed. Usually, Cloud systems rely on virtualization techniques to allocate...
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Whitepapers
Analysis of Using a Hybrid Neural Network Forecast Model to Study Wire Ice-Covering
April 1, 2012, 12:00am PDT
When applied to wire ice-covering forecasting, the back propagation (BP) neural network is a lack of guidance for selecting the neural network initial connection weight and network structure,...
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Whitepapers
An Approach on Automatic Tracking and Predicting of Satellite Cloud Clusters Based on Active Contour
April 1, 2012, 12:00am PDT
The tracking and forecasting of satellite cloud images are very important in term of satellite cloud images used in weather forecast. An approach on automatic tracking of multi-target cloud...
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Whitepapers
An Agent Based Routing Algorithm for Ubiquitous Sensor Networks
April 1, 2012, 12:00am PDT
An autonomic computing system has four basic characteristics, namely self-configuration, self-optimization, self-healing and self-protection. Autonomic computing can be viewed as a new computing...
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Whitepapers
A Bio-Inspired Modular Robot for Mutual Position Detection Based on Relative Motion Recognition
April 1, 2012, 12:00am PDT
One of key goals of disaster response and relief robots is to acquire knowledge about the situation that would be either dangerous or inaccessible to human operator. However, the robot is...
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Whitepapers
Study of Visualization for Data Network Node
April 1, 2012, 12:00am PDT
Most of the previous works of network visualization analysis depends on node graph and adjacency matrix in connection with an aspect of network topology. However, the representing node and matrix...
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Whitepapers
Evaluation of Image Scrambling Degree with Intersecting Cortical Model Neural Network
April 1, 2012, 12:00am PDT
Scrambling transformation plays an important role in information hiding application, so offering an effective evaluation method for scrambling algorithms is becoming increasingly necessary. The...
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Whitepapers
Face Recognition Using Harmony Search-Based Selected Features
April 1, 2012, 12:00am PDT
Harmony Search Algorithm (HSA) is an evolutionary algorithm which is used to solve a wide class of problems. HSA is based on the idea of musician's behavior in searching for better harmonies. It...
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Whitepapers
A Multi-Path Hybrid Routing Algorithm in Network Routing
July 1, 2012, 12:00am PDT
The shortest path tree construction is essential in network routing, and the Dijkstra algorithm, which is a static routing algorithm, is widely used. When some links in a network have new weights,...
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Whitepapers
SIMACT: A 3D Open Source Smart Home Simulator for Activity Recognition with Open Database and Visual Editor
July 1, 2012, 12:00am PDT
Smart home technologies have become, in the last few years, a very active topic of research. However, many scientists working in this field do not possess smart home infrastructures allowing them...
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Whitepapers
Consideration of Interference Analysis for Wireless Systems in VHF/UHF Bands with Geographic Information
July 1, 2012, 12:00am PDT
With the help of Rec. ITU-R P.1546 and geography information system, the interference analysis for the fixed wireless system and radar is presented based upon the frequency-distance rules with...
Provided by Science and Development Network (SciDev.Net)
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