Abstract
Abstract Telecommunication networks are built to carry “traffic” in the form of data being transmitted. Efforts in network design, control or management require decisions and optimization actions that in turn require traffic models . This is why the science and “art” of traffic modeling has been playing a crucial role in the area of communication network design and operation. Traffic modeling has an analytical aspect, whereby suitable stochastic models are devised, and attributed to different types of data sources and network types; and a computational aspect where actual parameter values are estimated from measured data. In this article, the most common models used in network traffic modeling are presented and basic concepts on traffic characterization are provided. Models for individual traffic sources as well as for aggregates of sources are also introduced. Finally, a brief discussion on the state‐of‐the art and on future trends is presented.
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