WiMax
BackWiMAX é uma tecnologia padronizada de rede sem fio que permite substituir as tecnologias de acesso de banda larga por cabo e ADSL. O WiMAX permite a comunicação fixa entre um ou mais pontos, comunicação portátil e, eventualmente, comunicação móvel sem fio sem a necessidade de visada direta com a estação base. O IEEE 802.16 é o padrão para transmissão sem fio ponto-a-ponto e ponto-multiponto para estações fixas (BWA -- Broadband wireless access). A versão inicial foi desenvolvida para cobrir várias soluções de BWA entre 10 e 66-GHz e projetada para atingir até 50 quilômetros. Como resultado, somente um conjunto de funcionalidades foi adotada pelo mercado, gerando o padrão atual IEEE Std 802.16-2004 que opera em freqüências abaixo de 11-GHz, aprovado em junho de 2004. Esse padrão é conhecido como WiMAX que é um acrônimo de Worldwide Interoperability for Microwave Access. Uma revisão está sendo elaborada para componentes móveis e sua aprovação está sendo esperada para 2005, conhecida como IEEE 802.16e.
Category: Howto
Uploaded: May 29th, 2006 @ 2:30 am
Author: emfagundes
Length: 08:07
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Tags: wimax
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