Made available in DSpace on 2016-04-04T18:31:23Z (GMT). No. of bitstreams: 1
KERLLA DE SOUZA LUZ OLIVEIRA.pdf: 1568205 bytes, checksum: bce8e961721a4346ba548c8f58ba336a (MD5)
Previous issue date: 2008-05-29 / This work evaluates the coverage of a WMAN (Wireless Metropolitan Area Network), with characteristics of a system WiMAX (Worldwide Interoperability will be Microwave Access) operating in 5.8GHz, in accordance with the used modulation. In order to reach this goal, predictions of field covering were used and measurements were made. The modulation of a adaptative antenna depends on the value of the received power and the attenuation of this power varies according to the region where the signal propagates. In this work the distribution of the modulation in the coverage area was evaluated using the Shadowing model to describe the attenuation of the signal in accordance with the considered environment. As a result, it could be observed the association of areas with two types of possible modulation due to the overlap of modulation bands generated by the standard deviation of the signal medium value. / Este trabalho avalia a cobertura de uma WMAN (Wireless Metropolitan Area Network), com caracter?sticas de um sistema WiMAX (Worldwide Interoperability for Microwave Access) operando em 5.8GHz, de acordo com a modula??o utilizada. Para tanto, empregaram-se tanto predi??es de cobertura quanto medidas de campo. A modula??o de uma antena depende do valor da pot?ncia recebida e a atenua??o desta pot?ncia varia de acordo com a regi?o por onde o sinal se propaga. Neste trabalho foi avaliada a mudan?a da modula??o dentro da ?rea de cobertura, utilizando-se o modelo de Shadowing para descrever a atenua??o do sinal de acordo com o ambiente considerado. Como resultado p?de-se observar a associa??o de ?reas com dois tipos de modula??es poss?veis, devido ?s faixas de sobreposi??o de modula??o geradas pelo desvio padr?o do valor m?dio do sinal.
| Identifer | oai:union.ndltd.org:IBICT/oai:tede.bibliotecadigital.puc-campinas.edu.br:tede/499 |
| Date | 29 May 2008 |
| Creators | Oliveira, Kerlla de Souza Luz |
| Contributors | Reggiani, Norma, Branquinho, Omar Carvalho, Moschim, Edson |
| Publisher | Pontif?cia Universidade Cat?lica de Campinas, Programa de P?s-Gradua??o em Engenharia El?trica, PUC-Campinas, BR, CEATEC ? Centro de Ci?ncias Exatas, Ambientais e de Tecnologias |
| Source Sets | IBICT Brazilian ETDs |
| Language | Portuguese |
| Detected Language | English |
| Type | info:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/masterThesis |
| Format | application/pdf |
| Source | reponame:Biblioteca Digital de Teses e Dissertações da PUC_CAMPINAS, instname:Pontifícia Universidade Católica de Campinas, instacron:PUC_CAMP |
| Rights | info:eu-repo/semantics/openAccess |
Page generated in 0.0017 seconds