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Multi-class Markovian arrival processes and their parameter fitting
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ICPE '12 Proceedings of the 3rd ACM/SPEC International Conference on Performance Engineering
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This paper shows how to construct a Markovian arrival process of second order from information on the marginal distribution and on its autocorrelation function. More precisely, closed-form explicit expressions for the MAP(2) rate matrices are given in terms of the first three marginal moments and one parameter that characterizes the behavior of the autocorrelation function. Besides the permissible moment ranges, which were known before, also the necessary and sufficient bounds for the correlation parameter are computed and shown to depend on a free parameter related to equivalent acyclic PH(2) representations of the marginal distribution. We identify the choices for the free parameter that maximize the correlation range for both negative and positive correlation parameters