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Avaliação de camadas física e MAC de redes WiFi

Avaliação de camadas física e MAC de redes WiFi


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About the Book

O desempenho de redes 802.11, comumente conhecidas por WiFi, tende a diferir do resultado esperado, e isso se deve, normalmente, pela falta de controle do meio de transmissão em função de sua natureza (ar livre). Apesar da "Experiência do Usuário" em termos de desempenho de rede ser função, normalmente, do resultado aferido na camada de Transporte (camada 4 do modelo OSI), os efeitos do ambiente e o comportamento da MAC podem ser já detectados e avaliados na própria camada MAC (camada 2 do modelo OSI), e correspondem aos componentes mais relevantes para determinação do desempenho da rede. Este livro propõe uma sequência de avaliação prática de redes 802.11 que pode ser adotada, independentemente dos equipamentos utilizados na rede. Os objetivos específicos de cada uma das etapas de avaliação são apresentadas e contextualizadas. É demonstrado que as taxas de transmissão de dados efetivamente praticadas na camada física variam mais que o esperado em função da interpretação dos dados fornecidos pelos fabricantes de equipamentos. E que, dependendo do projeto da rede, pode-se obter melhores desempenhos em ambientes de propagação desfavorável que utilizam múltiplos pontos de acesso.


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Product Details
  • ISBN-13: 9783639682670
  • Publisher: KS Omniscriptum Publishing
  • Publisher Imprint: Novas Edicoes Academicas
  • Height: 229 mm
  • No of Pages: 68
  • Spine Width: 4 mm
  • Width: 152 mm
  • ISBN-10: 363968267X
  • Publisher Date: 25 Dec 2019
  • Binding: Paperback
  • Language: Portuguese
  • Returnable: N
  • Weight: 163 gr


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