Detalhes bibliográficos
Ano de defesa: |
2014 |
Autor(a) principal: |
Lucas, Rosana de Paula
 |
Orientador(a): |
Vieira, Flávio Henrique Teles
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Banca de defesa: |
Vieira, Flávio Henrique Teles,
Sousa, Marcos Antônio de,
Castro, Marcelo Stehling de |
Tipo de documento: |
Dissertação
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Tipo de acesso: |
Acesso aberto |
Idioma: |
por |
Instituição de defesa: |
Universidade Federal de Goiás
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Programa de Pós-Graduação: |
Programa de Pós-graduação em Engenharia Elétrica e da Computação (EMC)
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Departamento: |
Escola de Engenharia Elétrica, Mecânica e de Computação - EMC (RG)
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País: |
Brasil
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Palavras-chave em Português: |
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Palavras-chave em Inglês: |
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Área do conhecimento CNPq: |
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Link de acesso: |
http://repositorio.bc.ufg.br/tede/handle/tede/4732
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Resumo: |
In this thesis, we present an algorithm for adaptive estimation of the parameter (Hurst parameter) that measures the selfsimilar degree of the network traffic process. Using this parameter, called the Global Scale parameter, we developed an adaptive bandwidth allocation scheme. We evaluate the performance of this transmission rate allocation scheme with adaptive global parameter, comparing its performance to that of another algorithm that uses only one value for the Hurst parameter. Additionally, using the concepts of Network Calculus, specifically the Effective envelope, we obtain estimates for the quality of service (QoS) parameters. That is, we present a proposal for estimating average queue size (backlog) and delay for different network traffic traces. To this end, we derive an equation for the effective envelope of network traffic trace that can be seen as a generalization of the Multifractal Bounded Arrival Process (MFBAP). Comparisons between the real backlog and delay values are carried out to those estimated by using the proposed Effective Envelope for various violation probabilities and with those obtained by other Envelop Processes. |