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 TitleDate AddedCompany
whitepaper An Optimal Weighted-Average Congestion Based Pricing Scheme for Enhanced QoS2007-09-28 Indian Institute of Science
  Pricing is an effective tool to control congestion and achieve Quality of Service (QoS) provisioning for multiple differentiated levels of service. This paper considers the problem of pricing for congestion control in the case of a network of nodes under a single service class and multiple queues, and presents a multi-layered pricing scheme. The paper proposes an algorithm for finding the optimal state dependent price levels for individual queues, at each node. The pricing policy used depends on a weighted average queue length at each node. This helps in reducing frequent price variations and is in the spirit of the Random Early Detection (RED) mechanism used in TCP/IP networks.

Tags: Network Technologies		   
whitepaper A QoS Evaluation Testbed for MAC Protocols for Wireless Camera Networks2007-09-28 Institute of Electrical and Electronics Engineers
  Existing QoS metrics can only be used for wireless sensor networks when the capability of sensor nodes is limited to making simple measurements such as temperature, pressure, etc. These metrics do not capture the communication patterns encountered when sensing is more elaborate, as in wireless camera networks where the need for distributed computation of image data may result in highly bursty communications among the nodes in a cluster. Whether or not a wireless camera network can successfully engage in, say, an object tracking task depends on whether the MAC protocol allows for these communication patterns to succeed with high reliability. The testbed characterizes a MAC protocol on the basis of the following three criteria: TIme-Bounded Parameter-Estimation Accuracy (TIBPEA), latency, and energy efficiency.

Tags: Mobile and Wireless, Software Development Tools		   
whitepaper Expand Recruited to Put the Spring Back Into Application Performance2007-09-21 Expand Networks
  In a bid to improve productivity and in order to support the future growth of the company, Spring Group made the transition to web-based applications. However, this introduced a new set of challenges to its network. As its business critical applications moved further away from its users, WAN connectivity to remote office sites struggled to cope with the increased demand that its bandwidth hungry applications placed on the network. As a result, latency and congestion increased, and response times became slow causing productivity at remote site offices to suffer. After extensive testing alongside its competitor Riverbed Technology, Spring Group looked to Expand's Compass platform to provide a solution to the company's problems due to its superior acceleration and QoS capabilities.

Tags: Network Management, Network Management		   
whitepaper Ipswitch WhatsUp Gold Standard Edition v122008-05-01 Ipswitch
  WhatsUp Gold Standard Edition is designed to satisfy the single site network management and monitoring needs of the most critical customers of all: small and medium businesses. WhatsUp provides 360° visibility, actionable intelligence and complete control. Powerful discovery and mapping capabilities find everything on your network in minutes.

Leveraging SNMP v1-3, WhatsUp enables predictive monitoring in combination with powerful alerting and notification to keep your network infrastructure running and you informed immediately when issues arise. Intuitive workspace views and dashboards provide drill-down access to alerts and issues in real-time and access to over 150 reports, documenting all device, bandwidth and application related activity.

Brought to you by:
Ipswitch WhatsUp Gold

Tags: Network Management, Network Management, LAN - WAN		   
whitepaper Ipswitch WhatsUp Gold Distributed Edition v12 -- Remote Site Installation2008-05-01 Ipswitch
  WhatsUp Gold Distributed Edition is a powerful network management and application monitoring solution designed expressly for large enterprise organizations with complex multi-site networks. Reducing management complexity, the solution offers NOC-based views into infrastructure and applications.

WhatsUp Gold Distributed leverages the extensive features of WhatsUp Gold Premium and extends them to provide secure SSL or VPN connectivity between central and any number of remote sites, no matter where they're located, 7 x 24, 365 days a year. With powerful discovery, mapping, SNMP v1-3 and WMI monitoring, alerting, notification and reporting capabilities, WhatsUp provides 360° visibility, actionable intelligence and complete control. Intuitive Web- and Windows-based management provides a complete picture of the whole network infrastructure in real-time.

Please note: WhatsUp Gold Distributed Edition includes a WhatsUp Gold Central installation and a WhatsUp Gold Remote installation. The WhatsUp Central Site installation coordinates data feeds from multiple WhatsUp Remote Site installations. The network data can then be viewed in reports that you select and customize on the Central Site. The Central and Remote installations, together, provide high visibility to the networks from one central location.

Install WhatsUp Gold Remote Site on a network computer at each remote location. Each remote site computer monitors the remote site network and reports the network status back to the Central Site. Find WhatsUp Gold Central Site Installation here. >>

Brought to you by:
Ipswitch WhatsUp Gold

Tags: Network Management, Network Management, LAN - WAN		   
whitepaper PRO BTP Builds Virtual Contacts Centre With IBM and Avaya2007-09-01 Avaya
  PRO BTP supports 202,200 companies paying contributions, 1,494,000 employees and 1,859,000 pensioners and claimants in the fields of retirement, forecasting and health, insurance and savings, but also in terms of social security and holidays. The challenge for PRO BTP was to improve telephone reception for subscribers and quality of service and reduce communication costs. PRO BTP implemented a virtual contacts centre with IBM and Avaya as well as ToIP/VoIP (Telephony and Voice over IP) technology. As a result 90 % of the 5,500,000 incoming calls per year were accepted and routed after three rings, there was a secure solution as well as savings on telephone costs.

Tags: Network Management, Customer Management		   
whitepaper Hybrid Bandwidth Scheduling for CAN-Based Networked Control Systems2007-09-01 Shanghai Jiao Tong University
  A hybrid bandwidth scheduling scheme is proposed to improve the quality of service and the bandwidth utilization for the CAN-based networked control systems. It combines rate monotonic and improved round-robin scheme for both the real-time and non-real-time data. Moreover, considering the constraints of control performance and network schedulability, a heuristic branch and bound & Genetic Algorithm (GA) algorithm is presented for the control data to minimize their bandwidth occupancy and the jitter caused by improper scheduling. The residual bandwidth is allocated to non-real-time data by the pro-posed scale round-robin scheme such that their network loads are balanced.

Tags: Network Management, Software Development Tools		   
whitepaper Model-Driven Engineering for Early QoS Validation of Component-Based Software Systems2007-09-01 Academy Publisher
  Model-Driven Engineering (MDE) techniques are increasingly being used to address many of the development and operational lifecycle concerns of large-scale component-based systems. One such concern that is growing in importance, but lacking significant research is the validation of Quality-of-Service (QoS) properties of component-based systems throughout their development lifecycle. In the current state of the art, large-scale component-based systems have to wait until system integration time to perform in-depth QoS testing, which can be too late and detrimental to project schedules and costs. This paper describes the novel MDE-based solution to address the challenge.

Tags: Software Development Tools, Software Development Tools		   
whitepaper A VC-Based API for Renegotiable QoS in Wireless ATM Networks0000-00-00 Alcatel-Lucent
  Quality of Service (QoS) support for multimedia applications has been widely discussed in the context of high speed wired networks. As interest increases in wireless ATM networks that extend the connection to a wireless endpoint, the issue of QoS over a wireless link has to be addressed. This paper focuses on the pr provision of QoS at the application level in a wireless environment. The work includes the design of an Application Programming Interface (API) that allows applications to specify and renegotiate the QoS level during a call; as well as the implementation of such API in a wireless ATM testbed: the SWAN system.

Tags: Network Technologies, Mobile and Wireless