Article

Discrete Event Dynamic Systems

, Volume 17, Issue 3, pp 405-421

First online:

Insensitive Traffic Models for Communication Networks

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Abstract

We present a survey of traffic models for communication networks whose key performance indicators like blocking probability and mean delay are independent of all traffic characteristics beyond the traffic intensity. This insensitivity property, which follows from that of the underlying queuing networks, is key to the derivation of simple and robust engineering rules like the Erlang formula in telephone networks.

Keywords

Traffic modeling Communication networks Bandwidth sharing Insensitivity Kelly–Whittle queuing networks