Distributed Clustering in Ad-Hoc Sensor Networks: A Hybrid, Energy-Efficient Approach
[ Source: Purdue University ]
January 2008-
This paper presents an energy-efficient distributed clustering approach for ad-hoc sensor networks. The approach is hybrid: cluster heads are randomly selected based on their residual energy, and nodes join clusters such that communication cost is minimized. Based on this approach, the paper introduces the HEED protocol, which terminates in a constant number of iterations, independent of the network diameter. HEED operates in quasi-stationary networks where nodes are location-unaware and have equal significance.
Using Oracle Streams Advanced Queuing: Best Practices
[ Source: Oracle ]
January 2008-
Oracle Streams Advanced Queuing (AQ) is the high-performance integrated message queuing feature of the Oracle Database. This paper from Oracle assists customers in maximizing the AQ performance and efficiency in their hardware and software environments. Advanced Queuing is more than just queue tables under the covers. There are many different data structures that facilitate the speedy operation of the queue tables. Queue Monitor (QMN) processes are responsible for a variety of queue maintenance tasks, especially ....
The Art of Effortless Administration: Oracle Database 10g Management Best Practices
[ Source: Oracle ]
January 2008-
DBAs (Database Administrators) today are charged with writing homegrown applications, administering large server farms, and managing projects of increasing complexity. Applications in these environments are distributed across multiple tiers, are complex and require a lot of specialized knowledge to administer. Oracle Database10g automates many of the database administration tasks and supports new automated tuning techniques, fueled by demand for accurate and timely diagnosis. This paper outlines a series of best practices that allows DBAs to ....
Optimal Cluster Association in Two-Tiered Wireless Sensor Networks
[ Source: Washington State University ]
January 2008-
This paper studies the two-tiered Wireless Sensor Network (WSN) architecture and proposes the optimal cluster association algorithm for it to maximize the overall network lifetime. A two-tiered WSN is formed by number of small Sensor Nodes (SNs), powerful Application Nodes (ANs), and Base-Stations (BSs, or gateways). SNs capture, encode, and transmit relevant information to ANs, which then send the combined information to BSs. Presuming the locations of the SNs, ANs, and BSs are fixed, the ....
Value Proposition for IBM DB2 9: Cost/Benefit Case for SAP Enterprise Migrations
[ Source: IBM ]
October 2007-
Over the next few years, most SAP users will begin to move beyond application deployment of next-generation NetWeaver solutions to large-scale migrations of core enterprise systems. This report examines the cost implications of employing Oracle 10g or IBM DB2 9 to support next-generation NetWeave solutions. It is based on input from a wide range of users.
Grid Computing's Role in Data Warehousing Grows
[ Source: CTS ]
October 2008-
The main characteristic of any data warehouse is its ability to hold huge volumes of data while still offering good query performance. It is designed to facilitate the analysis of the organization’s data and generate reports based on the analysis.
To provide better performance to analytical queries of business users, companies keep on adding hardware resources, thereby making the data warehouse system very expensive. Sometimes, the power of these added resources is underutilized. In ....
The Roadmap to Virtual Infrastructure
[ Source: VMware ]
October 2008-
Use this interactive tool to learn how you can best implement and maximize the benefits of VMware Infrastructure.
The Cloud on Your Terms: Your Apps, Where and When You Want Them
[ Source: VMware ]
October 2008-
Get a working definition of cloud computing, get tips to choosing the right cloud computing platform for your business, and learn the advantages of the VMware vCloud solution.
Architecting Low Latency Cloud Networks
[ Source: Arista Networks ]
June 2009-
As data centers transition to next generation virtualized & elastic cloud architectures, high performance and resilient cloud networking has become a requirement for delivering always-on, always-available applications.
Over the last decade response time requirements have been rigorously tightened, toward fractions of a second, and both network and compute latencies need to be reduced in parallel. An architectural approach is needed so that response times are consistently and measurably enhanced across a wide set of ....
GridBank: Changing the Rules of Archiving
[ Source: Tarmin Technologies ]
July 2009-
GridBank delivers enterprise class secondary storage solutions optimized for unstructured content. Dramatic storage CAPEX and OPEX savings, full information lifecycle management, multi petabyte scalability, leading security, ease of integration/use are hallmarks of the GridBank solution. In this presentation, you will learn how GridBank efficiently addresses key concerns and enables storage managers to effectively manage rapidly growing volumes of file based fixed content.