On the Aggregation of Self-Similar Processes

Gianluca MAZZINI, Riccardo ROVATTI, Gianluca SETTI

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Summary :

The problem of aggregating different stochastic process into a unique one that must be characterized based on the statistical knowledge of its components is a key point in the modeling of many complex phenomena such as the merging of traffic flows at network nodes. Depending on the physical intuition on the interaction between the processes, many different aggregation policies can be devised, from averaging to taking the maximum in each time slot. We here address flows averaging and maximum since they are very common modeling options. Then we give a set of axioms defining a general aggregation operator and, based on some advanced results of functional analysis, we investigate how the decay of correlation of the original processes affect the decay of correlation (and thus the self-similar features) of the aggregated process.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E88-A No.10 pp.2656-2663
Publication Date
2005/10/01
Publicized
Online ISSN
DOI
10.1093/ietfec/e88-a.10.2656
Type of Manuscript
Special Section PAPER (Special Section on Nonlinear Theory and its Applications)
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