JATIT

Displaying 1-40 of 236 results

  • White Papers // May 2013

    IP Multimedia Subsystem: Security Evaluation

    The IMS (IP Multimedia Subsystem) as network controller includes effective mechanisms for new services, regardless of the access technology. The network regroups all existing access IP-based technologies that unify access and minimize costs of service deployment. However, such architecture poses significant security challenges at network access and services providing. Indeed,...

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  • White Papers // May 2013

    Scheduling Research Based on Genetic Algorithm and Qos Constraints of Cloud Computing Resources

    Cloud computing is a new business model based on Internet and aims to provide information service for users. Resource scheduling is one of the key technologies of Cloud Computing. Analyzing the representative achievement of cloud computing resources scheduling, and then according to the problem that there are large gap between...

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  • White Papers // Apr 2013

    Monitor System Based on GSM Short Message for Unmanned Computer Room

    Based on the limitation of the traditional alarming system, the authors propose a monitor system based on GSM short message for unmanned computer room. Firstly, they design the monitor system structure. Secondly, they combine the dynamic and static information and proposed an information Publish-Subscribe platform. Finally, this platform supports message...

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  • White Papers // Apr 2013

    Lossless Network Compression Based on Topology Potential Community Discovery

    research of lossless network compression is carried out. To meet the different needs, two approaches of lossless network compression are proposed in this research. One approach, judging importance of the nodes according to their roles playing in the community composition, quantifies the importance of every node in communities, and achieves...

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  • White Papers // Apr 2013

    Research on Security Issues and Solutions of IEC 61850 Communication Protocol Architecture

    IEC 61850 Communication Protocol Architecture is widely used in China's electricity system for communication between the substation automatic systems. Due to the lacking of corresponding security specification, the standards cannot guarantee the confidentiality, integrity as well as authentication in communication. This paper proposes a solution for this problem. The improved...

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  • White Papers // Apr 2013

    Algorithm on Embedded Fingerprint Identification System

    Fingerprint identification technology is a kind of important biological identity recognition technology; it is also the most mature branch of biological recognition technology development. Comparing with other biometric identification technology, fingerprint identification technology has high efficiency, low cost, convenient collection etc advantages. Now the development of the fingerprint recognition system...

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  • White Papers // Apr 2013

    Analysis of ICSGD and OSSDL Localization Algorithms in WSN

    In the authors' papers before, two three-dimensional localization schemes which are called Iterative Calculation of Secondary Grid Division localization scheme (ICSGD) and a range free Three Dimensional Optimum Space Step Distance Localization scheme (3D-OSSDL) are proposed respectively. In ICSGDLS scheme, forty beacon nodes and five hundred unknown sensor nodes were...

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  • White Papers // Apr 2013

    Dynamic Group Signature Scheme Based on Non-Interactive Proof

    Combined with identity-based signature technology and non-interactive proof, a dynamic group signature scheme was built based on the standard group scheme model. This scheme overcame the shortcoming of static property of standard scheme and was of strong Non-frameability. New members could dynamically join in group without updating the group public...

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  • White Papers // Apr 2013

    An Efficient Protocol for Restricted Adaptive Oblivious Transfer

    Restricted adaptive oblivious transfer was introduced by Herranz in 2011, which is the main approach to protect user privacy in e-transactions involving operations on digital confidential data or sensitive information. There are many practical applications for restricted adaptive oblivious transfer, such as medical or financial data access, pay-per-view TV, and...

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  • White Papers // Apr 2013

    A Clustering Technique Based on Energy Balancing Algorithm for Routing in Wireless Sensor Networks

    A Wireless Sensor Network (WSN) is a collection of large number of tiny sensor nodes deployed in a field to survey the surroundings phenomena. Since, energy consumption is the crucial challenge in those networks, exploiting judiciously the energy reserve of nodes is the key for designing protocols. Distributing the energy...

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  • White Papers // Apr 2013

    VOIP Applications Over Manet: Codec Performance Enhancement by Tuning Routing Protocol Parameters

    Voice over Internet Protocol (VoIP) may provide good services through Mobile Ad hoc Networks (MANets) platform. It may cover many application scenarios range from safety to comfort related services. However, these networks introduce many challenges for supporting voice with QoS requirements. In this paper, the authors take the first step...

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  • White Papers // Apr 2013

    Business Intelligence Architecture Based on Internet of Things

    On the basis of the analysis of the operating characteristics of new intelligent network - Internet of things, the paper holds that the combination of the Internet of things and cloud computing is the design to cope with massive data in the future. The core of business intelligence lies in...

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  • White Papers // Apr 2013

    A Network Control System for Scene Adaptive Semiconductor Lighting

    This paper presents a design for intelligent control system of scene adaptive semiconductor lighting. The new design contains the host computer and the terminal in a control network. The lighting effect patterns are edited by the software on the host computer, then the lighting scene data is transported to the...

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  • White Papers // Apr 2013

    An Improved Fair Guard Band Allocation Scheme in Cognitive Networks

    In this paper, an improved fair dynamic channel algorithm allocation based on guard band scheme is presented. The adoption of the channel strategy in wireless communication has been ensuring the normal communication of important systems, such as coal mine wireless emergency support entity. But future study shows that the secondary...

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  • White Papers // Apr 2013

    Research on a Heuristic Searching Algorithm for Energy-Aware Routing in Wireless Sensor Networks

    Because cluster-head nodes in wireless sensor networks may be far away from the base station, or there exists many obstacles in deployment environments of wireless sensor networks to affect the data transmission performance, they would consume excessive energy in the process of the massive data transmission, which may lead to...

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  • White Papers // Apr 2013

    Maximal Profit Service Task Partition and Allocation in Computer Grid Considering Service Reliability and Security

    The paper considers grid computing systems in which the Resource Management Systems (RMS) divides a service tasks into Execution Blocks (EBs) and sends these blocks to different available resources. The service cost comprises the task execution cost, communication cost and security measures cost and depends on the resources assigned to...

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  • White Papers // Mar 2013

    Low Energy Mapping Technique for Hierarchical Network-on-Chip

    Intellectual Property (IP) core-to-node mapping is an important but intractable optimization problem in Network-on-Chip (NoC) application design. In this paper, the authors present an approach to map cores onto hierarchical NoC architecture which consists of two levels. The top-level interconnection network is realized by a 2D mesh of communicating routers,...

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  • White Papers // Jan 2013

    Narrow Band Interference Mitigation in DS-UWB Systems Using the Wavelet Transform and FFT

    Because of its importance, DS-UWB communication is an open research area, particularly in the context of its coexistence with OFDM based systems. In this paper, the authors present an analysis of the effect of the Narrow Band Interference of OFDM WLAN 802.11a systems, on the performance of BPSK-DS -UWB in...

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  • White Papers // Jan 2013

    Web Service Description Framework and Selection Mechanism Towards Balanced Perceptions of FQOS and QOS

    With the growing expansion of web services resources on the internet, more and more users come to appreciate the difficulty of searching self-gratification information from the mass information. This paper analyzes functional attributes and un-functional attributes of Web service resources, builds the mapping relationship between FQoS and QoS, and defines...

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  • White Papers // Dec 2012

    A Wireless Sensor Network Routing Algorithm Based on Ant Colony Algorithm

    In this paper, the authors proposed one kind based on the ant colony algorithm routing algorithm in wireless sensor networks. According to the election of cluster head node energy, and the use of ant colony algorithm is simple and easy to implement, support for multiple path characteristics, through the adjacent...

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  • White Papers // Dec 2012

    Analysis of Security Mechanism in Wireless Campus Network

    With the rising number of schools going to built wireless campus networks, the current wireless campus networks cannot protect from increasing illegal network intrusion. This paper presented an improved security mechanism for wireless campus networks. It is based on the analysis of the shortages of current for security mechanism for...

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  • White Papers // Dec 2012

    An Improved Alamouti Strategy With Energy-Efficiency in Wireless Sensor Networks

    Sensor nodes usually operate on small batteries with restricted sources of energy in the Wireless Sensor Networks (WSNs). Energy efficiency is one of the most critical concerns for it. Clustered topology schedule is important method of saving energy with some advantages of managing conveniently, using the energy efficiently, and fusing...

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  • White Papers // Dec 2012

    Successive Interference Cancellation Decoding for the K -User Cyclic Interference Channel

    The K -user cyclic interference channel can model one scenario in vehicular networks, where all the base stations are arranged along a highway. The k th user is interfered only by the ((k +1) mod K) th user in the K -user cyclic interference channel. The Han-Kobayashi scheme based rate...

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  • White Papers // Dec 2012

    Advanced Passive Clustering-Threshold a Maintenance Mechanism of the Cluster Structure

    A Wireless Sensor Network (WSN) is a set of nodes communicating through wireless links to observe a given phenomenon. Wireless sensor network is deployed over a geographical area to collect information in hostile environments. The capacity of sensors is limited by the lifetime of their batteries, so the energy is...

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  • White Papers // Dec 2012

    A Development Model for Domain-Oriented Information Service Based on Cloud Computing Infrastructure

    For the diversity of users demand for information services in converged network environment, a solution was proposed with the combination of cloud computing technology and domain engineering, in which three stages starting from the domain engineering include service-oriented domain analysis and modeling, domain architecture design based on cloud computing infrastructure...

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  • White Papers // Dec 2012

    Profit-Driven Dynamic Spectrum Allocation in Wireless Networks

    At present, dynamic spectrum allocation methods in wireless networks can meet the spectrum resource allocation requirements within a certain rang. They are mainly based on the change of the spectrum resources in terms of time and geographical distribution. Relatively speaking, these allocation methods to make efficient use of spectrum resources...

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  • White Papers // Dec 2012

    Mobile Robot-Based Virtual V-Blast MIMO Transmission Scheme in Distributed Wireless Sensor Networks

    Aiming at the requirements of high-speed data transmission and low energy consumption in energy constrained Wireless Sensor Networks (WSNs), a mobile robot-based virtual V-BLAST cooperative MIMO transmission scheme and an efficient approximate Maximum Likelihood (ML) detection algorithm are proposed in this paper. Mobility of robot can reduce the communication distance...

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  • White Papers // Dec 2012

    A Ca Model of Culture Information Dissemination in the Network Era and the Simulation of Its Dynamic Character

    Through analyzing the characteristics of the culture information dissemination of the network era, the complex network theory is used to study it deeply. It shows that the process of network information dissemination has typical network topology structure. The kind of network structure has both small world and scale-free features, and...

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  • White Papers // Dec 2012

    A Dynamic Customizable Architecture for SaaS Based Platform

    The characteristics of multi associations business coordination among the enterprises in industry chain is firstly analyzed, and the demand of customizable business of SaaS (Software as a Service) based platform supporting the industry chain coordination (in brief, PLATFORM) is intensively analyzed. Based on these, customizable business-oriented PLATFORM architecture based on...

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  • White Papers // Dec 2012

    Multi-Beam Antenna-Based Topology Control Algorithm in Ad Hoc Networks

    Multi-beam antenna is drawing attention due to its power-saving and interference-reducing. A topology control algorithm K-DRNG based on multi-beam antenna in heterogeneous wireless ad hoc network is proposed. The algorithm is mainly composed of three phases. In the stage of information collection, each node collects information of neighborhood by adjusting...

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  • White Papers // Dec 2012

    Joint Time and Location Mobility Prediction Algorithm for Heterogeneous Wireless Networks

    Mobility prediction algorithm is the significant aspect to improve QoS (Quality of Service) for heterogeneous wireless networks because it can accurately predict user' s trajectory, decrease handoff latency and preserve resources in arriving cell for user. Considering inaccurate description of existing mobility prediction algorithms for mobile user's location in heterogeneous...

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  • White Papers // Dec 2012

    Throughput Optimization for MIMO Systems Based on Cross-Layer Design

    Based on cross-layer design, an optimization method was proposed, which combined the adaptive modulation and coding with symbol rate at the physical layer, and the packet size and sub-packet number at the data link layer. The parameters were jointly optimized to maximize the MIMO system throughput in the Rayleigh fading...

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  • White Papers // Dec 2012

    An Evaluation Optimization Approach of IaaS Resource Distribution Based on Genetic Algorithm

    In cloud computing, IaaS (Infrastructure as a Service) is the foundation of cloud service applications. It enables problems like resource allocation scheduling and bearing capacity to be further optimally solved. Therefore, a genetic optimized IaaS resource optimization evaluation approach is presented. This approach abstractly defines its 7 factors (properties) including...

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  • White Papers // Dec 2012

    A Dynamic Data Fusion Method and Its Application

    Data fusion involves multi-sources or multi-presentations of a single source to perform inferences which are more comprehensive and accurate than those of any single method. Thus, data fusion makes it possible to create a synergistic process in which the consolidation of individual data creates a combined resource with a productive...

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  • White Papers // Dec 2012

    Isolated Distributed Architecture for Cloud-Storage Services Based on Structured Strategy

    Cloud Security threats have greatly hindered the development of Cloud Computing and the promotion of cloud application, so how to protect the data stored in the cloud is not only the core issue of security, but also the biggest challenge of development. As these problems above, a trust-control architecture based...

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  • White Papers // Dec 2012

    An ID-Based Multi-Receiver Signcryption Scheme in MANET

    In Mobile ad hoc network (Manet), to solve the problems of the message receiver privacy exposure and signcryption (decryption) unfairness in existing signcryption schemes, a new ID- based multi-receiver signcryption scheme based on bilinear pairings is proposed. The authors also analyzed its security and efficiency. The result shows that the...

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  • White Papers // Dec 2012

    An Improved Information Hiding Algorithm

    Hiding technology is a newly developed discipline that concludes many subjects and covers many fields, and it hides the transferring information in the carrier, which greatly increases the safety of information transmission. In order to hide and transfer information more effectively, the paper researched the cloud algorithm in the model...

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  • White Papers // Dec 2012

    A Multi-Hop Routing Scheme Based on Different Spatial Density of Nodes in WSNS

    In this paper, the operating principle of SEP in Wireless Sensor Networks (WSNs) is analyzed, and a Multi-Hop Routing Scheme (MH-SEP) is proposed based on different spatial density of nodes. The network is to be divided into different sizes of areas according to the multi-hop routing scheme, the cluster heads...

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  • White Papers // Dec 2012

    Energy-Saving Model on Distributed Random Nodes in Wireless Sensor Networks

    The purpose of the authors' study is to try to extend the life of the sensor network, without affecting the uses functions in wireless sensor networks. As their method reduces the amount of data communications and reduces the energy consumption of wireless sensor networks significantly, the compression problem in the...

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  • White Papers // Dec 2012

    A Real-Time Information Oriented Service-Aware Routing Algorithm

    The mobile nodes perceive the real-time routing information of different sections, and analyze the reliability of the movement direction of nodes, data exchange, and transmission delay and path failure. By combining movement direction, speed and locations, the routing path is adaptively updated according to the network states of the sections...

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