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In this paper, the authors consider statistical characteristics of real User Datagram Protocol (UDP) traffic. Four main issues in the study include the presence of Long Range-Dependence (LRD) in the UDP traffic, the marginal distribution of the UDP traces, dependence structure of wavelet coefficients, and performance evaluation of the Hurst parameter estimation based on different numbers of vanishing moments of the mother wavelet. By analyzing a large set of real traffic data, it is evident that the UDP Internet traffic reveals the LRD properties with considerably high non-stationary processes.
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