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A traffic generation model is a stochastic model of the traffic flows or information sources in a interaction network, for instance a cellular network or a computer system network. A package generation model is a traffic generation design of the packet streams or data sources in a packet-switched network. For instance, a web traffic design is a design of the information that is sent or gotten by a user’s web-browser.
The network performance can be analysed by network traffic measurement in a testbed network, using a network traffic generator such as iperf, bwping and Mausezahn. The traffic generator sends dummy packets, frequently with an unique packet identifier, making it possible to keep an eye on the packet delivery in the network.
An analytical method using queueing theory may be possible for simplified traffic design, however is frequently too complicated if a realistic traffic design is utilized. A simplified packet information model is the greedy source design. It may be beneficial in evaluating the optimum throughput for best-effort traffic (without any quality-of-service guarantees).
Another simplified standard traffic generation model for circuit-switched information along with package information, is the Poisson process, where the variety of incoming packages or calls per time unit follows the Poisson distribution. The length of each call is generally modelled as an rapid circulation. The variety of all at once ongoing telephone call follows the Erlang circulation.
For a more practical model, a self-similar process such as the Pareto circulation can be utilized as a long-tail traffic model. The real content of the payload data is generally not modelled, however replaced by dummy packets. Nevertheless, if the payload information is to be examined on the receiver side, for example relating to bit-error rate, a Bernoulli process is often assumed, i.e
. In this case a channel design shows channel impairments such as sound, interference and distortion. There are at least 2 standardized traffic generation models for packet-switched cordless networks: the 3GPP2 design and the 802.16 model. The 3GPP2 model is far more complicated to implement however it is supposed to offer more accurate outcomes.