A locally stationary semi-Markovian representation for ethernet LAN traffic data

In the past few years a large number of teletraffic measurements have been extensively studied by many contributors. Most of the authors agree on saying that the traffic measured on today’s broadband networks is long-range dependent. Oddly enough these contributors do not question the stationarity of the traffic on these long time scales when the hypothesis of stationarity is essential to speak of long-range dependence. Concurrently it has been demonstrated that some kind of non stationarities in a short-range dependent process can lead, if they are not detected, to the untrue conclusion of long-range dependence.