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Hand-off baseado em PSNR
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ISBN10: 620683154X
ISBN13: 9786206831549
Publisher: Edicoes Nosso Conhecimento
Published: May 8 2025
Pages: 56
Weight: 0.19
Height: 0.13 Width: 6.00 Depth: 9.00
Language: Portuguese
ISBN13: 9786206831549
Publisher: Edicoes Nosso Conhecimento
Published: May 8 2025
Pages: 56
Weight: 0.19
Height: 0.13 Width: 6.00 Depth: 9.00
Language: Portuguese
É difÃcil atender usuários móveis em MANET (Rede Móvel Ad-hoc) densa selecionando a infraestrutura tradicional de redes Ad-hoc. A multimÃdia móvel em ambientes pervasivos geralmente tem como alvo redes ad hoc móveis dinâmicas (MANETS) com áreas de interesse densamente povoadas. Neste projeto, propusemos uma nova tecnologia baseada em retransmissão para transferência do antigo nó de retransmissão para o novo nó de retransmissão. Para tanto, utilizamos a implementação de nós móveis ad-hoc com canal de rádio na plataforma Matlab por dados multimÃdia, ou seja, Imagem. Simulamos este cenário em relação ao RSSI (Received Signal Strength Indication) e ao PSNR (Peak to Signal Noise Ratio) considerando mais de 15 nós móveis. Com base nos valores RSSI e PSNR, decidimos o limite para transferência do antigo nó de retransmissão para o novo nó de retransmissão. Desta forma, economizamos largura de banda e espectro e notamos que há aumento na taxa de transferência de dados multimÃdia com menos congestionamento na rede.
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