IARIA

Displaying 1-40 of 1223 results

  • White Papers // May 2014

    MuTeBench: Turning OLTP-Bench into a Multi-Tenancy Database Benchmark Framework

    Database benchmarks have been used for decades to load test systems and to compare systems or system configurations with each other. However, their methods and assumptions are hardly suitable for multi-tenant cloud database services. Those systems have to provide both performance isolation of a lot of tenants with dynamic workloads...

    Provided By IARIA

  • White Papers // Jan 2014

    Security Considerations for Multicast Communication in Power Systems

    Information security is gaining increasingly more importance for real-time automation networks. Multicast communication is used widely especially on field and process level to cope with performance requirements and to ease the handling of communication peers as the destinations need not to be known by the sender. A security design must...

    Provided By IARIA

  • White Papers // Jan 2014

    A Diversified Set of Security Features for XMPP Communication Systems Useful in Cloud Computing Federation

    Now-a-days, in the panorama of cloud computing, finding a right compromise between interactivity and security is not trivial at all. Currently, most of cloud providers base their communication systems on the web service technology. The problem is that both cloud architectures and services have started as simple but they are...

    Provided By IARIA

  • White Papers // Jan 2014

    Easy Development of Web Applications using WebODRA2 and a Dedicated IDE

    The modern web requires new ways for creating applications. The authors present their approach combining a web framework with a modern object-oriented database and a dedicated Integrated Development Environment (IDE). It makes it easier to develop web applications by rising the level of abstraction. In contrast to many existing solutions,...

    Provided By IARIA

  • White Papers // Jan 2014

    Multi-Version Databases on Flash: Append Storage and Access Paths

    New storage technologies, such as flash and non-volatile memories, with fundamentally different properties are appearing. Leveraging their performance and endurance requires a redesign of existing architecture and algorithms in modern high performance databases. Multi-Version Concurrency Control (MVCC) approaches in database systems, maintain multiple time-stamped versions of a tuple. Once a...

    Provided By IARIA

  • White Papers // Nov 2013

    Towards a Framework for Designing Secure Mobile Enterprise Applications

    Mobile devices like Smartphone's and tablets are not only designed for private use, but also for business use as well. Mobile solutions, such as mobile enterprise resource planning and mobile business intelligence, are now-a-days becoming more common. However, without strong consideration of security, especially in mobile devices, these solutions would...

    Provided By IARIA

  • White Papers // Nov 2013

    Integrated Technologies for Communication Security on Mobile Devices

    In this paper, the authors presented design decisions taken during the construction of a framework for cryptographically secure communication on Android devices. The early prototypes still have many challenges to be overtaken, as follows. The use of cryptosystems for short signatures, elliptic curve cryptography and pairings-based cryptography are some of...

    Provided By IARIA

  • White Papers // Oct 2013

    Pricing the Cloud: An Adaptive Brokerage for Cloud Computing

    Using a multi-agent social simulation model to predict the behavior of cloud computing markets, Rogers & Cliff (R&C) demonstrated the existence of a profitable cloud brokerage capable of benefitting cloud providers and cloud consumers alike. Functionally similar to financial market brokers, the cloud broker matches provider supply with consumer demand....

    Provided By IARIA

  • White Papers // Oct 2013

    Towards a Smart City Security Model

    Even though concepts related to smart cities are well established and spread, those concepts are still very thin when related to Information Security. This paper will present some studies on smart cities, and will show that those studies are based on three macro concepts, system interoperability, applications and frameworks/platforms. Solutions...

    Provided By IARIA

  • White Papers // Oct 2013

    Kongdroid: A Proposal for a Cloud Service for Stress Testing on Android Applications

    In this paper, the authors propose a new and scalable service for stress testing on Android applications. This tool is available through cloud computing resources to support developers in their applications validation, aiming robustness, stability and compatibility, in different devices before commercial deployment. The solution focuses on the generation of...

    Provided By IARIA

  • White Papers // Oct 2013

    Commercialized Practical Network Service Applications From the Integration of Network Distribution and High-Speed Cipher Technologies in Cloud Environments

    In this paper, the authors present the evaluation results of the commercialization of High Security Disaster Recovery Technology (HS-DRT) that uses network distribution and high-speed strong cipher technologies to realize efficient and secure network services. They have commercialized a disaster recovery system and evaluated the performance of the distributed engines...

    Provided By IARIA

  • White Papers // Oct 2013

    A Privacy-Enhanced User-Centric Identity and Access Management Based on Notary

    Identity and Access Management (IAM) systems aim to control of users' attributes for authentication, authorization and accountability processes. Public Key Certificates (PKCs), like the X.509 standard, use asymmetric key pairs to support digital signatures, authentication processes and to increase the trust in the communication. Nevertheless, the PKC does not concern...

    Provided By IARIA

  • White Papers // Sep 2013

    Discovering and Linking Financial Data on the Web

    The constant publishing of large volumes of financial information by various business sector organizations through its financial statements is a fact that must be exploited by using semantic technologies. This paper describes the use of Linked Data to generate a financial dataset that is part of the ongoing work of...

    Provided By IARIA

  • White Papers // Sep 2013

    Exploiting Wiktionary for Lightweight Part-of-Speech Tagging for Machine Learning Tasks

    Part-of-speech (PoS) tagging is a crucial part in many natural language machine learning tasks. Current state-of-the-art PoS taggers exhibit excellent qualitative performance, but also contribute heavily to the total runtime of text preprocessing and feature generation, which makes feature engineering a time-consuming task. The authors propose a lightweight dictionary and...

    Provided By IARIA

  • White Papers // Sep 2013

    The Data Checking Engine: Monitoring Data Quality

    In the context of data warehousing and business intelligence, data quality is of utmost importance. However, many mid-size Data WareHouse (DWH) projects do not implement a proper data quality process due to huge up-front investments. However, assessing and monitoring data quality is necessary to establish confidence in the DWH data....

    Provided By IARIA

  • White Papers // Sep 2013

    Key Performance Indicators for Cloud Computing SLAs

    Reducing IT costs by using cloud computing is tempting for many companies. As cloud rapidly is gaining momentum as alternative mean of providing IT resources, the need for regulated service qualities increases. To attract companies to outsource their services to clouds, providers need to offer service level objectives specified in...

    Provided By IARIA

  • White Papers // Sep 2013

    Novel Models and Architectures for Distributed Semantic Data Management

    Semantic data management refers to a range of techniques for the manipulation and usage of data based on its meaning and its rapid growth gives rise to the problems of building novel models and architectures for its distributed management allowing efficient query processing and reasoning. The first part of the...

    Provided By IARIA

  • White Papers // Sep 2013

    Exploring the Tradeoffs of Configurability and Heterogeneity in Multicore Embedded Systems

    Embedded systems, such as Smartphone's, have become ubiquitous due to the versatility of these devices for various applications, which have varying application resource requirements. Due to these variances, system resources should be specialized to the executing applications' resource requirements in order to adhere to design/optimization goals. In multicore systems, core...

    Provided By IARIA

  • White Papers // Aug 2013

    Risk-Based Dynamic Access Control for a Highly Scalable Cloud Federation

    Cloud computing is already a successful paradigm for distributed computing and is still growing in popularity. However, many problems still linger in the application of this model and some new ideas are emerging to help leverage its features even further. One of these ideas is the cloud federation, which is...

    Provided By IARIA

  • White Papers // Aug 2013

    Estimation of Performance and Availability of Cloud Application Servers Through External Clients

    This paper investigates two aspects of the QoS offered by some cloud providers on the Internet, the availability and the dedicated capacity in terms of how well a user process is isolated from other users of the same application server instance. By using standard components and software utilities, a small...

    Provided By IARIA

  • White Papers // Aug 2013

    Robustness of Security-Oriented Binary Codes Under Non-Uniform Distribution of Codewords

    Robust and partially robust codes are used in cryptographic devices for detecting active side channel attacks on the hardware. The codes are usually designed for uniformly distributed code-words. In practice, however, there are code-words that are much more likely to appear than others. This paper addresses the question of how...

    Provided By IARIA

  • White Papers // Aug 2013

    Fighting Spam by Breaking the Economy of Advertising by Unsolicited Emails

    Unsolicited email (spam) is still a problem for users of the email service. Even though current email anti-spam solutions filter most spam emails, some still are delivered to the inbox of users. A special class of spam emails advertises websites, e.g., online dating sites or online pharmacies. The success rate...

    Provided By IARIA

  • White Papers // Aug 2013

    Advanced Metering and Data Access Infrastructures in Smart Grid Environments

    For securing the provision with electric energy in smart grids, the ascertainment of energy consumption and production is inevitable in order to be able to apply appropriate control algorithms. As energy management is a highly distributed task, a data network has to exist in parallel to the power network for...

    Provided By IARIA

  • White Papers // Aug 2013

    Challenges in Securing Wireless Sensor Networks

    Wireless sensor networks are highly prone to faults and errors due to their restrictive capabilities and limited resources. In this paper, some of the challenges facing the wireless sensor networks such as security, routing, computing capability, and battery power, will be discussed. The authors will focus on both security and...

    Provided By IARIA

  • White Papers // Aug 2013

    The Cloning Attack Vulnerability in WSN Key Management Schemes

    The majority of existing key management schemes in wireless sensors networks suffer from the physically compromised of nodes. This vulnerability allows an adversary to reproduce clones from a compromised node and to inject them into several locations on the network to conduct other types of attacks. Moreover, the joining of...

    Provided By IARIA

  • White Papers // Aug 2013

    Proposed Middleware for Sensor Networks in Cyber-Physical System Environments

    This paper describes the modeling proposal of a middleware for sensor networks in Cyber-Physical (CP) environments adopting the reuse of Designs Patterns, which must favor the coupling in the underlying layers of the middleware and facilitate the communication between components in the upper layers. The authors' main goal is to...

    Provided By IARIA

  • White Papers // Aug 2013

    Policy-Aware Provisioning of Cloud Applications

    The automated provisioning of complex composite cloud applications is a major issue and of vital importance in cloud computing. It is key to enable cloud properties such as pay-as-you-go pricing, on-demand self-service, and elasticity. The functional aspects of provisioning such as instantiating virtual machines or installing software components are covered...

    Provided By IARIA

  • White Papers // Aug 2013

    XMPP Distributed Topology as a Potential Solution for Fog Computing

    Fog computing is potentially harmful towards existing cloud computing systems as well as big data structures. Lack of privacy and potentially unauthorized content distribution are some of many issues to solve. As a possible solution, the authors propose in the following paper the definition of a new network topology as...

    Provided By IARIA

  • White Papers // Jul 2013

    A Topology Visualization Early Warning Distribution Algorithm for Large-Scale Network Security Incidents

    It is of great significance to research the early warning system for large-scale network security incidents. It can improve the network system's emergency response capabilities, alleviate the cyber attacks' damage, and strengthen the system's counterattack ability. A comprehensive early warning system is presented in this paper, which combines active measurement...

    Provided By IARIA

  • White Papers // Jul 2013

    Protecting the Communication Structure in Sensor Networks

    In the near future wireless sensor networks will be employed in a wide variety of applications establishing ubiquitous networks that will pervade society. The inherent vulnerability of these massively deployed networks to a multitude of threats, including physical tampering with nodes exacerbates concerns about privacy and security. For example, Denial...

    Provided By IARIA

  • White Papers // Jul 2013

    The Impact of Requirements on Software Quality Across Three Product Generations

    The authors presented data demonstrating the impact that a well-written and well-reviewed set of requirements had on software defects and other quality indicators between two generations of an Intel product. Quality indicators for the second software product all improved dramatically even with the increased complexity of the newer product. This...

    Provided By IARIA

  • White Papers // Jul 2013

    Simulation of a Security Function Based on Vehicle-to-X Communication and Automotive Lighting

    Crime and feeling of security are pervasive occurrences and can be influenced by lighting conditions. However, lighting improvements are generally concentrated on street lighting. Meanwhile, a vast variety of new technologies, including innovative lighting systems and connected mobility, are entering into the automotive field. Hence, opportunities are not limited only...

    Provided By IARIA

  • White Papers // Jul 2013

    A Time-series Clustering Approach for Sybil Attack Detection in Vehicular Ad hoc Networks

    Sybil attack is a security threat wherein an attacker creates and uses multiple counterfeit identities risking trust and functionality of a peer-to-peer system. Sybil attack in vehicular ad hoc networks is an emergent threat to the services and security of the system. In the highly dynamic environment of vehicular ad...

    Provided By IARIA

  • White Papers // Jul 2013

    Experiments in Collaborative Cloud-Based Distance Learning

    Mobile devices have revolutionary changed the process of multimedia consumption in distance learning systems and provide flexible user-oriented experience. M-learning systems typically include different kinds of multimedia resources helping learners to be more interactive and interested in collaboration. The proposed multi-tenancy group collaboration within the cloud-based learning platform (as a...

    Provided By IARIA

  • White Papers // Jul 2013

    A New Bio-Crypto System Approach to Enhance Security of 4G Mobile Networks

    In this paper, the authors examine the vulnerable security elements that MAC management messages in WiMAX initial network entry faces. The paper proposes an innovative hybrid approach to resolve such vulnerability problem and establish secret communication channels via insecure domains. The proposed protocol is based on bio-crypto systems and to...

    Provided By IARIA

  • White Papers // Jul 2013

    HMAC-Based RFID Authentication Protocol with Minimal Retrieval at Server

    In this paper, the authors propose a HMAC-based RFID mutual authentication protocol to improve performance at the back-end server. In existing hash-based protocols, the tag ID is a secret value for privacy, so the back-end server computes a lot of hash operations or modular operations to retrieve the tag ID....

    Provided By IARIA

  • White Papers // Jul 2013

    Sun Behind Clouds - On Automatic Cloud Security Audits and a Cloud Audit Policy Language

    Studies show that when it comes to an integration of Cloud computing into enterprises, chief information officers and management still see some dark Clouds on the horizon. The biggest one is the lack of security, which results in distrust and skepticism against the technology, mainly originating from an intransparency of...

    Provided By IARIA

  • White Papers // Jul 2013

    Provenance Framework for the Cloud Infrastructure: Why and How?

    Provenance is an important aspect in the verification, audit trails, reproducibility, privacy and security, trust, and reliability in distributed computing, in-silico experiment and generally in e-science. On the other hand, Cloud computing is the business model of distributed computing and is considered the next generation of computing and storage platforms....

    Provided By IARIA

  • White Papers // Jul 2013

    Maturing the Distribution of Supportive Tasks in Web Service Framework: Security and Reliability

    Security and reliability are the crucial features of distributed computing, of which one of the key enabling technologies is Web Service. In a service execution, the main task is carried out by endpoint logic, which is supported by additive functionalities and/or capabilities, called Web Service handlers. The handlers can be...

    Provided By IARIA

  • White Papers // Jul 2013

    Optimal Query Operator Materialization Strategy for Hybrid Databases

    Recent research shows that main memory database system provides many different advantages over traditional disk based systems. Furthermore it is shown that the way how data is persisted in such a system is very important. Modern systems provide a hybrid row- and column-oriented storage layer that proves to be optimal...

    Provided By IARIA

  • White Papers // May 2013

    Fuzzy Controled QoS for Scalable Cloud Computing Services

    An important characteristic of cloud infrastructures is scalability on demand. A scalability service monitors performance load metrics and decides to scale up or down, by provision or revoke of cloud resources. This could guarantee Quality of Service (QoS) and enforce Service Level Objectives (SLOs). The approach of this paper shows...

    Provided By IARIA

  • White Papers // Sep 2013

    Exploring the Tradeoffs of Configurability and Heterogeneity in Multicore Embedded Systems

    Embedded systems, such as Smartphone's, have become ubiquitous due to the versatility of these devices for various applications, which have varying application resource requirements. Due to these variances, system resources should be specialized to the executing applications' resource requirements in order to adhere to design/optimization goals. In multicore systems, core...

    Provided By IARIA

  • White Papers // Feb 2013

    RedNoCs: A Runtime Configurable Solution for Cluster-Based and Multi-Objective System Management in Networks-on-Chip

    Runtime-based monitoring and adaptation are indispensable system management tasks for efficient operation of complex heterogeneous Multi-Processor-System-on-Chip (MPSoC) under dynamic workloads. Thereby, runtime-adaptive mechanisms like application mapping, adaptive routing or thermal management will have their own parameter, requirements and information flows. The main contribution of this paper is the evaluation of...

    Provided By IARIA

  • White Papers // Oct 2011

    Mptrace: Characterizing Physical Memory Usage for Chip Multiprocessors

    The performance of high performance computing applications depends highly on how they are implemented. However, their runtime behavior is tightly coupled with the resources they are allocated such as in which cores the application threads run or in which memory devices their memory space is placed. Thus, depending on their...

    Provided By IARIA

  • White Papers // May 2014

    MuTeBench: Turning OLTP-Bench into a Multi-Tenancy Database Benchmark Framework

    Database benchmarks have been used for decades to load test systems and to compare systems or system configurations with each other. However, their methods and assumptions are hardly suitable for multi-tenant cloud database services. Those systems have to provide both performance isolation of a lot of tenants with dynamic workloads...

    Provided By IARIA

  • White Papers // Sep 2012

    Optimization of Proxy Caches using Proxy Filters

    Web proxy caches are a widely used tool to reduce the network load by storing often needed web pages. Increasing amounts of data transferred require new intelligent caching strategies with smarter replacement algorithms to predict, which web documents will be requested most likely in the future. However, these algorithms are...

    Provided By IARIA

  • White Papers // Nov 2011

    ZeDDS - Fault-Tolerant Data Management in Wireless Sensor Networks with Mobile Users

    In application scenarios where sensor data is temporarily stored within the WSN - instead of transferring the data directly to a base station - data availability is an important factor. Ubiquitous Wireless Sensor Networks (WSNs) consist of sensor nodes which may communicate with each other via unreliable communication links. Furthermore,...

    Provided By IARIA

  • White Papers // May 2013

    Transparent Access on Encrypted Data Distributed over Multiple Cloud Infrastructures

    Using cloud infrastructures to store and backup data is becoming a popular alternative that guarantees performance and scalability at reasonable prices. However, standard cloud solutions could raise some concerns about data confidentiality and dependency on a single provider. The authors aim to address these issues by using cloud storage of...

    Provided By IARIA

  • White Papers // Jan 2014

    Easy Development of Web Applications using WebODRA2 and a Dedicated IDE

    The modern web requires new ways for creating applications. The authors present their approach combining a web framework with a modern object-oriented database and a dedicated Integrated Development Environment (IDE). It makes it easier to develop web applications by rising the level of abstraction. In contrast to many existing solutions,...

    Provided By IARIA

  • White Papers // Jul 2012

    Dependable Estimation of Downtime for Virtual Machine Live Migration

    Modern virtualization environments allow the live migration of running systems for load balancing and failover purposes in case of failing hosts. The overall duration of such migration and the short downtime during this process are essential properties when implementing service availability agreements. However, both metrics are currently only determinable through...

    Provided By IARIA

  • White Papers // Jul 2012

    Pattern-Oriented Enterprise Architecture Management

    Current enterprise architecture frameworks are limited in their ability of providing reference architectures and architecture development methods to assist for developing comprehensive, guided and fully-fledged enterprise architectures. The outcome is that in the majority of cases present architecture modeling approaches are rarely validated, have sparse reference and meta-models as well...

    Provided By IARIA

  • White Papers // Jul 2012

    Pattern Innovation for Architecture Diagnostics in Services Computing

    Assessing the maturity of service-oriented enterprise software architectures is a problem since the current practice has been developed rather intuitively, providing only a sparse and rarely validated meta-model. In preliminary work, the authors have developed an original pattern language for supporting repetitive enterprise system architecture assessments. The aim is the...

    Provided By IARIA

  • White Papers // Jun 2013

    Enforcing Data Availability in Structured Peer-to-Peer Storage Systems With Zero Replica Migration

    In this paper the authors present a structured peer-to-peer storage substrate that exploits notifications issued by the underlying network maintenance layer to enforce data availability, while avoiding both application-level replica tracking and unneeded replica migrations. This system enforces a multiple keys replication approach. Each peer advertises its stored contents to...

    Provided By IARIA

  • White Papers // Apr 2012

    Data Portability Using WebComposition/Data Grid Service

    Web 2.0 has become the ubiquitous platform for publishing, sharing and linking of content. While users are empowered to create and manage their data, the latter is still scattered and controlled by distributed and heterogeneous web applications. The data is usually stored in internal silos and is only partially exposed...

    Provided By IARIA

  • White Papers // Jun 2010

    Trisolda: The Environment for Semantic Data Processing

    One of the main goals of the semantic web is to create a universal medium for the exchange of data. In order to support research and development of web semantization tools, methods and algorithms the authors have designed and implemented the Trisolda infrastructure. It is built around a semantic repository...

    Provided By IARIA

  • White Papers // Jun 2010

    Design of Web Services Filtering and Clustering System

    The need for filtering of services results from the ever growing number of available web services that may be used to compose various business applications. Some of the available web services offer similar functionalities, thus the need to differentiate between them occurs. The semantic web services filtering process is therefore...

    Provided By IARIA

  • White Papers // Jul 2011

    Real-Time Processor Interconnection Network for FPGA-Based Multiprocessor System-on-Chip (MPSoC)

    In this paper the authors introduce a new approach for a Network On Chip (NOC) design which is based on an NlogN interconnect topology. The intended application area for the NOC is the real-time communication of multiprocessors that are hosted by a single Field Programmable Gate Array (FPGA). The proposed...

    Provided By IARIA

  • White Papers // Jul 2011

    A Grid-based Approach to Continuous Clustering of Moving Objects

    With the rapid advances in wireless devices and positioning technologies, tracking and clustering of moving objects has drawn increasing attention. Previous methods of clustering moving objects merge clusters by searching all the existing clusters, which have an obvious decline in efficiency as the number of clusters increases. This paper proposes...

    Provided By IARIA

  • White Papers // Jul 2011

    Storage QoS Aspects in Distributed Virtualized Environments

    Storage performance of a single virtual machine in a cloud computing environment may be affected by other machines using the same physical storage. At the same time, user requirements concerning quality of service continue to increase, which brings new challenges for virtualized environments. In this paper the authors present the...

    Provided By IARIA

  • White Papers // Jan 2014

    Multi-Version Databases on Flash: Append Storage and Access Paths

    New storage technologies, such as flash and non-volatile memories, with fundamentally different properties are appearing. Leveraging their performance and endurance requires a redesign of existing architecture and algorithms in modern high performance databases. Multi-Version Concurrency Control (MVCC) approaches in database systems, maintain multiple time-stamped versions of a tuple. Once a...

    Provided By IARIA

  • White Papers // Apr 2012

    Using Statistical Information for Efficient Design and Evaluation of Hybrid XML Storage

    Modern relational database management systems provide hybrid XML storage, combining relational and native technologies. Hybrid storage offers many design alternatives for XML data. In this paper the authors explore how to aid the user in effective design of hybrid storage. In particular they investigate how the XML schema and statistical...

    Provided By IARIA

  • White Papers // Apr 2011

    Prioritized Redundancy of Data Storage in Wireless Sensor Networks

    Wireless sensor networks have evolved into complex deployments, where their nodes can have a full network protocol stack, database systems, etc. The main rationed resource in such a deployment is energy. Having power usage tightly managed ensures a long operational life for the node in cases where replenishments (either via...

    Provided By IARIA

  • White Papers // Mar 2013

    Resource-Efficient Management Scheme of Sensor Data

    In this paper, the authors propose a resource-efficient management scheme of sensor data for building energy saving. To manage buildings, they collect data from the variety of sensors in buildings able to recognize illumination, motion, temperature, humidity and so on. They analyze this data and derive energy saving measures from...

    Provided By IARIA

  • White Papers // Nov 2011

    Modular P2P-Based Approach for RDF Data Storage and Retrieval

    One of the key elements of the semantic web is the Resource Description Framework (RDF). Efficient storage and retrieval of RDF data in large scale settings is still challenging and existing solutions are monolithic and thus not very flexible from a software engineering point of view. In this paper, the...

    Provided By IARIA

  • White Papers // Sep 2013

    Novel Models and Architectures for Distributed Semantic Data Management

    Semantic data management refers to a range of techniques for the manipulation and usage of data based on its meaning and its rapid growth gives rise to the problems of building novel models and architectures for its distributed management allowing efficient query processing and reasoning. The first part of the...

    Provided By IARIA

  • White Papers // Jun 2010

    Performance Analysis of a Priority Queue With Session-Based Arrivals and Its Application to e-Commerce Web Servers

    In this paper, the authors analyze a discrete-time priority queue with a session-based arrival process. They consider an infinitely large user population, where each user can start and end sessions. Sessions belong to one of two classes and generate a variable number of fixed-length packets which arrive to the queue...

    Provided By IARIA

  • White Papers // Jul 2011

    Testing Triple Play Services Over Open Source IMS Solution for Various Radio Access Networks

    Nowadays, with the development of next generation networks, new standards for voice and video services have been introduced, and VoIP (Voice over IP) has become a very popular protocol. It leads to the convergence of networks which provide voice and data transfer services with enhanced and improved applications for customers....

    Provided By IARIA

  • White Papers // Jul 2011

    Novel Load Balancing Scheduling Algorithms for Wireless Sensor Networks

    In this paper, optimal scheduling mechanisms are developed for packet forwarding in wireless sensor networks, where clusterheads are gathering information. The objective is to monitor real-life processes for a given time interval and forward packets with minimum loss probabilities to the base station. In order to achieve this objective the...

    Provided By IARIA

  • White Papers // Jul 2011

    The Impact of Control Information Prioritization on QoS Performance Metrics

    Real-time protocols such as Real-time Transport Protocol (RTP) and its companion protocol Real-time Transport Control Protocol (RTCP) are the solution for customers who have progressively come to desire real-time services. The characteristics of RTP and RTCP packets differ since they carry different content types, i.e., real-time data and control data,...

    Provided By IARIA

  • White Papers // Jul 2011

    Quality of Services Assurance for Multimedia Flows Based on Content-Aware Networking

    This paper proposes a new architectural solution to support Quality of Services (QoS) for real time media flows in a multi-domain system based on new concepts as Content-Aware Networks (CAN) and Network Aware Application (NAA). The system described, based on coupling between network and applications is focused, but not limited...

    Provided By IARIA

  • White Papers // Jul 2011

    Practical Performance Measurements and Analysis of IEEE 802.16 Networks

    IEEE 802.16 standard defines the wireless broadband technology called WiMAX. When compared to other wireless technologies, it introduces many interesting advantages at PHYsical (PHY) and media access control (MAC) layers. The WiMAX technology based on air interface standard 802.16 wireless Metropolitan Area Network (MAN) is configured in the same way...

    Provided By IARIA

  • White Papers // Jul 2011

    Performance Evaluation for DSRC Vehicular Safety Communication: A Semi-Markov Process Approach

    In this paper, an analytic model is proposed for the performance evaluation of vehicular safety related services in the Dedicated Short Range Communications (DSRC) system on highways. The generation and service of safety messages in each vehicle is modeled by an M/G/1 queue. A Semi-Markov Process (SMP) model is developed...

    Provided By IARIA

  • White Papers // Jul 2011

    A Resource Management Strategy to Support VoIP Across Ad Hoc IEEE 802.11 Networks

    This paper describes the concept of the resource management strategy in ad hoc networks for rescue operations. The presented strategy is a result of the new outlook on the IEEE 802.11 networks capabilities and performance enhancement. The proposed solution is dedicated to real time services support and is based on...

    Provided By IARIA

  • White Papers // Jul 2011

    QoS Signaling for Service Delivery in NGN/NGS Context

    The evolution of next generation network raises the issue of exploiting customizable services for a nomadic user within the environment of heterogeneity and mobility. In this paper, the E2E QoS (Quality of Service) always remains as a challenge. In fact, the E2E supposes that apart the network resource, the service...

    Provided By IARIA

  • White Papers // Jul 2011

    Vulnerability of MRD-Code-Based Universal Secure Error-Correcting Network Codes Under Time-Varying Jamming Links

    In order to provide reliable and secure communication against eavesdroppers and jammers over networks, Universal Secure Error-Correcting Network Codes (USECNC) based on Maximum-Rank-Distance (MRD) codes have been introduced. This code can be applied to any underlying network codes. However, Shioji et al. introduced a reasonable network model against the code....

    Provided By IARIA

  • White Papers // Jul 2011

    A Robust Periodogram-Based IFO Estimation Scheme for OFDM-Based Wireless Systems

    In this paper, the authors propose a new periodogram-based Integer Frequency Offset (IFO) estimation scheme robust to the Fractional Frequency Offset (FFO) variation. The authors first observe the reason why the conventional IFO estimation scheme in this paper, which is sensitive to the variation of the FFO, and then, propose...

    Provided By IARIA

  • White Papers // Jun 2010

    QoS for Wireless Mesh: MAC Layer Enhancements

    Wireless mesh networks present MAC design challenges beyond those of WLANs. Abundant hidden nodes increase the number of collisions. This, combined with the correlated access needed when forwarding a multi-hop flow, degrades QoS. MAC enhancements for meshes are presented in this paper that reduce latency for mesh traffic while promoting...

    Provided By IARIA

  • White Papers // Jun 2010

    Interactive Internet Television for Mobile Devices and Large-Scale Areas

    In coming years it is supposed that importance of the Internet television technology will grow and also number of households and subscribers paying for this service will be increasing. It is also supposed that this technology will enable new kind of services, where one of them is an interaction of...

    Provided By IARIA

  • White Papers // Jul 2011

    Customer Security Concerns in Cloud Computing

    There is no consensus about what exactly cloud computing is, but some characteristics are clearly repeated. It is a new distributed computing and business paradigm. It provides computing power, software and storage and even a distributed data center infrastructure on demand. In this paper, the authors investigated what are the...

    Provided By IARIA

  • White Papers // Mar 2011

    Target Tracking in Marine Wireless Sensor Networks

    It is evident that wireless sensor networking has a secure place in the future of communication systems. The potential and promise of such networks cannot be underestimated. A major advantage is the wide array of configurations and working environments that allow a wealth of applications. In the last few years,...

    Provided By IARIA