Teletraffic Characteristics of Mobile Packet Communication Networks Considering Self-Similarity in Terminal Cell Dwell Time
Hirotoshi Hidaka · 2002
Introduction It has beenrep orted that teletra#c over a wired network such as the Internet or local area networks has a self-similar characteristic [1]--[3]. There are also rep orts that self-similarityap ears even in the teletra#c of cellular communication networks because of the hierarchical structure of cellular systems [4] and because of the heavy-tailed distribution of holding time [5]. This fact has drawn much attention because self-similarity is a quite di#erent from conventional modeling such as Markov modeling. In a self-similarpe cess, the fluctuations observed in a given series of data remain the same when the scale of observation is changed. We have measured the mobility characteristics of various vehicles as exampP( of terminal prminal4 to evaluate the behavior of terminals within a cellular system [6]. As a result, we found that the terminal cell dwell time, which indicates the mobility characteristic of the mobile terminal, also exhibits self-similarity [7].