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Sociedade Brasileira de Telecomunicações

A Traffic Policing Mechanism for Wimax Systems Based on Multifractal Modeling


In this paper, we analyze the queueing performance in terms of loss rate of an OFDM (Orthogonal FrequencyDivision Multiplexing)/TDMA(Time Division Multiplexing Access) based Wimax system taking into account the multifractal behavior of the wireless traffic flows. To this end, first, we show evidences of multifractal characteristics on wireless traffic traces. These findings motivated us to propose a traffic policing and control scheme based on a multifractal envelope process in order to maintain the traffic flows wellbehaved, i.e., in accordance to the desired parameters. Simulations and comparisons to other methods are carried out to verify the efficiency of the proposed traffic policing.

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Estatatísticas de Acesso

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