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For another meaning of the term "traffic engineering", please see transport traffic engineering. For another meaning of the term traffic engineering, please see telecommunications traffic engineering. ...
Traffic engineering uses statistical techniques such as queuing theory to predict and engineer the behaviour of telecommunications networks such as telephone networks or the Internet. Statistics is a broad mathematical discipline which studies ways to collect, summarize and draw conclusions from data. ...
Queueing theory (spelled queuing theory in the United States) is the mathematical study of waiting lines (or queues). ...
BlackBerry 7100t Telecommunication refers to communication over long distances. ...
The telephone or phone (Greek: tele = far away and phone = voice) is a telecommunications device which is used to transmit and receive sound (most commonly voice and speech) across distance. ...
The field was created by the work of A. K. Erlang in whose honour the unit of telecommunication traffic intensity, the Erlang is named. The derived unit of traffic volume also incorporates his name. His Erlang distributions are still in common use in telephone traffic engineering. Agner Krarup Erlang (January 1, 1878–February 3, 1929) was a Danish mathematician, statistician, and engineer who invented the fields of queueing theory and traffic engineering. ...
In telecommunication, a traffic intensity is a measure of the average occupancy of a facility during a specified period of time, normally a busy hour, measured in traffic units (erlangs) and defined as the ratio of the time during which a facility is occupied (continuously or cumulatively) to the time...
The dimensionless unit named the erlang is a statistical measure of telecommunications traffic used in telephony. ...
In telecommunication networks, traffic volume is a measure of the total work done by a resource or facility, normally over 24 hours, and is measured in units of erlang-hours. ...
The Erlang distribution is a continuous probability distribution with wide applicability primarily due to its relation to the exponential and Gamma distributions. ...
The crucial observation in traffic engineering is that in large systems the law of large numbers can be used to make the aggregate properties of a system over a long period of time much more predictable than the behaviour of individual parts of the system. In a statistical context, laws of large numbers imply that the average of a random sample from a large population is likely to be close to the mean of the whole population. ...
The queueing theory originally developed for circuit-switched networks is applicable to packet-switched networks. A circuit switched network is one where a dedicated connection (circuit or channel) must be set up between two nodes before they may communicate. ...
In computer networking and telecommunications, packet switching is a communications paradigm in which packets (messages or fragments of messages) are individually routed between nodes, with no previously established communication path. ...
The most notable difference between these sub-fields is that packet-switched data traffic is self-similar. This is a consequence of the calls being between computers, and not people. A self-similar object is exactly or approximately similar to a part of itself. ...
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