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(18280 results)-
Whitepapers
Performance Improvement of Clustered Mobile Ad Hoc Networks Using a CDMA Single Channel and Based on Admission Control Approach
February 1, 2008 12:00am PST
Clustering has been proven to be a promising approach for mimicking the operation of the fixed infrastructure and managing the resources in multi-hop networks. In this paper, the authors propose...
Provided by: University of Pune
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Whitepapers
Any Resource Sharing via HWN Routing
February 1, 2008 12:00am PST
In this paper, the authors present an Adaptive Distributed Cross-layer Routing algorithm (ADCR) for Hybrid Wireless Network with dedicated relay stations (HWN). To support versatile multimedia...
Provided by: Scientific Research
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Whitepapers
An Energy-Aware Hierarchical Architecture Design Scheme
February 1, 2008 12:00am PST
Compared with the flat architecture in the design of sensor networks, the hierarchical architecture gains much attractive for the reason of scalability, management and energy efficiency. In order...
Provided by: Scientific Research
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Whitepapers
QoS in Node-Disjoint Routing for Ad Hoc Networks
February 1, 2008 12:00am PST
Ad-hoc NETwork (MANET) is a collection of mobile nodes that can communicate with each other without using any fixed infrastructure. To support multimedia applications such as video and voice...
Provided by: Scientific Research
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White Papers
The Netezza FAST Engines Framework: A Powerful Framework for High-Performance Analytics
February 1, 2008 12:00am PST
The Netezza Performance Server (NPS) performance multiplier effect is the result of a framework of FPGA-Accelerated Streaming Technology (FAST) Engines that leverage the embedded FPGA to provide...
Provided by: Netezza
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Case Studies
Valero Uses Failover Clustering to Reduce System Recovery Time From Days to Minutes
February 1, 2008 12:00am PST
Valero needed an IT infrastructure with the resiliency to support refinery and business operations in a disaster situation. To protect mission-critical applications and communications, Valero...
Provided by: Microsoft
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White Papers
Exploiting Geometric Advantages of Cooperative Communications for Energy Efficient Wireless Sensor Networks
February 1, 2008 12:00am PST
Energy efficiency and enhanced backbone capacity is obtained by exploiting the geometric orientation of cooperative nodes in wireless sensor network. The cooperative communication in Wireless...
Provided by: Scientific Research Publishing
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Case Studies
Karachi Stock Exchange Achieves Zero Downtime With Clustered Database Solution
February 1, 2008 12:00am PST
Founded in 1947, the Karachi Stock Exchange (KSE) is Pakistan's largest and oldest stock exchange. Karachi Stock Exchange (KSE) wanted to implement a robust database platform to run...
Provided by: Oracle
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Case Studies
Russia's Baltika Breweries Links Its ERP Databases Using SQL Server 2008 Replication
February 1, 2008 12:00am PST
Baltika Breweries, the largest producer of beer in Russia, has about 12,000 employees and 11 breweries. Its popular brands have been the market leader in Russia for more than a decade and are...
Provided by: Microsoft
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White Papers
Peta-Scale I/O With the Lustre File System
February 1, 2008 12:00am PST
This paper describes low-level infrastructure in the Lustre file system that addresses scalability in very large clusters. The features described deal with I/O and networking, lock management,...
Provided by: Sun Microsystems
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White Papers
Optimal Placement of Wireless Nodes for Maximizing Path Lifetime
February 1, 2008 12:00am PST
In this paper, the authors investigate the deployment of wireless nodes in order to maximize the lifetime of a data flow. They develop a mathematical model for determining the best placement of...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective
February 1, 2008 12:00am PST
Cognitive radios hold tremendous promise for increasing spectral efficiency in wireless systems. This paper surveys the fundamental capacity limits and associated transmission techniques for...
Provided by: Stanford University
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White Papers
On Routing in Multichannel Wireless Mesh Networks: Challenges and Solutions
February 1, 2008 12:00am PST
Wireless mesh networks have emerged as a promising solution to providing cost-effective last-mile connectivity. Employing multiple channels is shown to be an effective approach to overcoming the...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Energy-Efficient Cooperative Communication in a Clustered Wireless Sensor Network
February 1, 2008 12:00am PST
In this paper, the authors consider a clustered wireless sensor network where sensors within each cluster relay data packets to nearby clusters using cooperative communications. They propose a...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Non-Separable Directional Channel Model and Observations for Future Mobile Air Interfaces
February 1, 2008 12:00am PST
Communication nodes with multiple antennas are likely candidates for 4th Generation (4G) wireless systems and beyond, providing increased spectral efficiency as well as improved spectrum reuse....
Provided by: Jacobs University Bremen
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Case Studies
Exinda Networks Lends a Helping Hand to the Salvation Army's IT Network
February 1, 2008 12:00am PST
The Salvation Army in Australia provided more than one million episodes of assistance to individuals and families and spent more than $500 million on its many social and community service...
Provided by: Exinda Networks
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White Papers
Call Setup Latency Analysis in SIP-Based Voice Over WLANs
February 1, 2008 12:00am PST
In this paper, the authors consider Session Initiation Protocol (SIP)-based Voice Over Wireless Local Area Networks (VoWLANs). They derive the analytical expression for the average call setup...
Provided by: Institute of Electrical and Electronics Engineers
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White Papers
Do You Need a Broadband Remote Access Server?: Functionality and Trade-Offs of Using Smart DSLAMs and MSANs
February 1, 2008 12:00am PST
There are many misconceptions about the role of the DSL Forum's Broadband Network Gateway (BNG), better known as a Broadband Remote Access Server (BRAS) or Broadband Services Router (BSR). The BSR...
Provided by: Juniper Networks
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White Papers
A Combined Localization and Geographic Routing Algorithm for Rapidly-Deployed Wireless Sensor Networks
February 1, 2008 12:00am PST
The authors consider a network of randomly-deployed, low-cost sensors and a single powerful sink node. A partition-based localization algorithm is proposed in which the sink node imparts...
Provided by: Taylor & Francis Group
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White Papers
Enhanced Cost Optimized VPN Provisioning Algorithm
February 1, 2008 12:00am PST
A Virtual Private Network (VPN) aims to emulate the services provided by a private network over the shared Internet. The endpoints of VPN are connected using abstractions such as Virtual Channels...
Provided by: Kalasalingam University
