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Articles 1 - 3 of 3

Full-Text Articles in Engineering

Energy-Efficient Querying Of Wireless Sensor Networks, Christopher R. Mann Sep 2007

Energy-Efficient Querying Of Wireless Sensor Networks, Christopher R. Mann

Theses and Dissertations

Due to the distributed nature of information collection in wireless sensor networks and the inherent limitations of the component devices, the ability to store, locate, and retrieve data and services with minimum energy expenditure is a critical network function. Additionally, effective search protocols must scale efficiently and consume a minimum of network energy and memory reserves. A novel search protocol, the Trajectory-based Selective Broadcast Query protocol, is proposed. An analytical model of the protocol is derived, and an optimization model is formulated. Based on the results of analysis and simulation, the protocol is shown to reduce the expected total network …


Diseño De Una Terminal Interactiva Para Información A Clientes De Un Centro Comercial Y Desarrollo Del Sistema De Información, Diego Enrique Parra Montañez, Ronald Yesid Ramírez Gracia Mar 2007

Diseño De Una Terminal Interactiva Para Información A Clientes De Un Centro Comercial Y Desarrollo Del Sistema De Información, Diego Enrique Parra Montañez, Ronald Yesid Ramírez Gracia

Ingeniería en Automatización

No abstract provided.


A Service Provisioning Platform For Beyond 3g - The Telecommunication Service Exchange, Donna Griffin Jan 2007

A Service Provisioning Platform For Beyond 3g - The Telecommunication Service Exchange, Donna Griffin

Theses

From the inception of mobile communications one of the most important factors contributing to its success has been a good understanding of user requirements. In the first generation, mobile networks offered subscribers the freedom to communicate regardless of their locations and the joy of instant access to voice telephony services. This provided a competitive edge over wire line communication networks and resulted in large revenue streams. However over the past decade, mobile network operators have been faced with a number of factors that have incurred significant costs and resulting reduced revenue. These factors include deregulation, increased competition and technological progress …