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 TitleDate AddedCompany
whitepaper An Architectural Model to Provide QoS in a Home Network and Its Evaluation in a Real Testbed2008-06-01 Academy Publisher
  Home networks are an evolution of office local area networks, answering the need for residential distribution of broadband services. The design of a home network must strive to keep low costs, easy installation and maintenance while at the same time providing a large variety of services, from voice and data applications to multimedia streaming. A successful platform for home networking must put together simple interfaces for the users and sophisticated mechanisms for managing the distribution of the desired broadband services. This paper proposes mechanisms to support flows with different Quality of Service (QoS) requirements in a home network whose architectural model has been defined in the framework of the European IST ePerSpace project.

Tags: Network Management, LAN - WAN		   
whitepaper Connection Admission Control in WiMAX Networks2008-05-20 Universita Degli Studi di Roma
  Standard IEEE 802.16, commonly referred as WiMAX, is one of the most promising Broadband Wireless Access (BWA) technologies. BWA will allow to provide to users new emerging bandwidth demanding services, like IPTV, on-line gaming, etc. The main characteristic of new services is the need of Quality of Service (QoS) guarantees, in terms of bandwidth reservation, delay, jitter and packet loss. One of the most important features of WiMAX is the possibility that it offers to provide QoS to data flows. In fact, the standard defines several scheduling classes at MAC layer to treat service flows in a different way depending on QoS requirements.

Tags: Mobile and Wireless, Network Management		   
whitepaper Sustaining Negotiated QoS in Connection Admission Control for ATM Networks Using Fuzzy Logic Techniques2008-05-20 University of Ibadan
  The objective of Connection Admission Control (CAC) is to keep the network load moderate to achieve a performance objective associated with Quality of Service (QoS). Cell Loss Ratio (CLR), a key QoS parameter in ATM networks, is essential for proper network resources dimensioning, congestion control, bandwidth allocation and routing. This paper employed fuzzy logic technique in Statistical Connection Admission Control (S-CAC) - a CAC employing multiplexing of the bandwidth between the peak cell rate and the sustained (average) cell rate. The fuzzy technique consists of an input stage, a processing stage, and an output stage. The paper defined the rules with "Max-min" inference method in which the output membership function is given the truth value generated by the premise.

Tags: Network Technologies		   
whitepaper A Mobile Agent Approach to Opportunistic Harvesting in Wireless Sensor Networks2008-05-16
  This paper illustrates the feasibility of harvesting data from a WSN by interested parties, either in the WSN coverage area or in a remote location. Embedded and mobile agents are harnessed for the data capture process. Individual nodes communicate with gateways to which, user devices connect. Users can query and view the local data in an ad-hoc manner, and possibly remotely configure and manipulate the data capture process. It is envisaged that the combination of embedded and mobile agents offer a dynamic method of sensor data viewing and processing, either in situ, or in a central repository.

Tags: Mobile and Wireless, Network Management		   
whitepaper HP PolyServe Software and AppSense Performance Manager: Implementation Best Practices2008-05-01 Hewlett-Packard
  AppSense and HP produce complimentary technologies targeted at the consolidation of MS SQL Server environments. This paper provides best practice scenarios for inclusion of AppSense Performance Manager in a HP PolyServe Software implementation and demonstrates a number of test scenarios, together with the appropriate results and system configurations. This paper is intended to outline ideal configurations when using both the PolyServe and AppSense products in combination, but does not constitute training documentation regarding how to use each product. Appropriate educational material can be obtained by contacting the respective vendors.

Tags: Security Administration, IT Infrastructure		   
whitepaper Multiobjective Optimization of SLA-Aware Service Composition2008-04-25 University of Massachusetts
  In Service Oriented Architecture, each application is often designed as a set of abstract services, which defines its functions. A concrete service(s) is selected at runtime for each abstract service to fulfill its function. Since different concrete services may operate at different Quality of Service (QoS) measures, application developers are required to select an appropriate set of concrete services that satisfies a given Service Level Agreement (SLA) when a number of concrete services are available for each abstract service. This problem, the QoS-aware service composition problem, is known NP-hard, which takes a significant amount of time and costs to find optimal solutions (optimal combinations of concrete services) from a huge number of possible solutions.

Tags: User Satisfaction, Internet and Web		   
whitepaper Context-Sensitive QoS Model: A Rule-Based Approach to Web Service Composition2008-04-25 Association for Computing Machinery
  Generally, web services are provided with different QoS values, so they can be selected dynamically in service composition process. However, the conventional context free composition QoS model does not consider the changeability of QoS values and the context sensitive constraints during composition process. This paper proposes a rule based context sensitive QoS model to support the changeability of QoS values and the context sensitive constraints. By considering context in the QoS model, web service composition can be used widely and flexibly in the real world business.

Tags: Internet and Web		   
whitepaper Model-Based Validation of QoS Properties of Biomedical Sensor Networks2008-04-18 Uppsala University
  A Biomedical Sensor Network (BSN) is a small-size sensor network for medical applications, that may contain tens of sensor nodes. This paper presents a formal model for BSNs using timed automata, where the sensor nodes communicate using the Chipcon CC2420 transceiver (developed by Texas Instruments) according to the IEEE 802.15.4 standard. Based on the model, the paper has used UPPAAL to validate and tune the temporal configuration parameters of a BSN in order to meet desired QoS requirements on network connectivity, packet delivery ratio and end-to-end delay. The network studied allows dynamic reconfigurations of the network topology due to the temporally switching of sensor nodes to power-down mode for energy-saving or their physical movements.

Tags: Network Management, Mobile and Wireless		   
whitepaper Adaptive Bandwidth Management and Reservation Scheme in Heterogeneous Wireless Networks2008-04-15 Institute of Electrical and Electronics Engineers
  In order to support multiple types of service with different QoS requirements in heterogeneous wireless networks, efficient resource management, call admission control strategies, and mobility management are important issues. This paper proposes Bandwidth Management Strategy 1 (BMS1), Bandwidth Management Strategy 2 (BMS2) and reservation scheme with Fuzzy controller for real-time services. Simulation result shows that the proposed methods balance resource utilization outperforms the previous work and traditional CAC by improving the Call Reject Probability (CRP).

Tags: Network Management, Mobile and Wireless		   
whitepaper Keeping in Touch With Customers - PropertyInfo Case Study2008-04-11
  PropertyInfo Corporation, a Stewart company provides comprehensive real estate information solutions for residential and commercial realty, title, lenders, builders and developers, underwriters, home buyers and sellers in both US and international markets. With disparate customer support systems, PropertyInfo couldn't track and measure a specific customer's service experience and determining overall service quality was difficult. PropertyInfo needed a comprehensive solution to manage end-to-end support complexities and growth for the 20 regional support centers. As a leader in the industry, PropertyInfo required the highest levels of "Quality of Service" for growth and competitive differentiation. The company deployed PhaseWare Tracker suite of customer support solutions which is the ideal platform that provided a path to PropertyInfo's key requirement in streamlining & consolidating their 20 regional customer support centers.

Tags: Business Functions, Software Development Tools