Más información

Título:
Development and Performance Evaluation of a Frequency-Agile Test Network = Implementación y evaluación de desempeño de una red de pruebas con frecuencias reconfigurables
Fecha de publicación:
2009
Forma de obra:
Tesis
Producción:
2009
Idioma:
inglés
Nota de edición:
Digitalización realizada por la Biblioteca Virtual del Banco de la República (Colombia)
Autor:
Martínez Vargas, Guilberth
Materia:
Tecnología; Tecnología / Ingeniería y operaciones afines
Nota general:
© Derechos reservados del autor
Nota general:
Colfuturo
Nota general:
Asignación de frecuencias; Cognitive radio; Coloreo de grafos; Frequency allocation; Radio cognitivo; Graph coloring; Radios definidos en software; Red de pruebas; Software defined radio; Test bed
Nota general:
New generation wireless communication systems should support the increasing demand for efficient utilization of the electromagnetic spectrum. The Cognitive Radio (CR) paradigm is envisioned as a new technique to realize this goal. Nowadays, Software Defined Radios (SDRs) are the foundations on which the CR will be achieved. In this thesis we implemented an SDR network testbed based on a GNU radio platform. The test network was used to evaluate the actual performance of two methods that attempt to contribute as constituents of a Radio Environment Map (REM). REMs are a new approach to provide situation awareness for CRs.
The first technique under analysis was a colouring-based frequency allocation mechanism that optimizes the assignment of frequency channels in the 2.4 GHz band. Its effectiveness was demonstrated using several performance tests in different scenarios and conditions. This study also explores the viability of using our SDR testbed to execute real-time power measurements to estimate the dynamics of indoor radio propagation. This is a preliminary step to obtain complete radio environment awareness, and thus contribute towards realizing the REM and CR approaches. 
Enlace permanente:
http://www.cervantesvirtual.com/obra/development-and-performance-evaluation-of-a-frequency-agile-test-network-implementacion-y-evaluacion-de-desempeno-de-una-red-de-pruebas-con-frecuencias-reconfigurables-874749

Otras colecciones

  • Biblioteca americana