Teletraffic engineering, or telecommunications traffic engineering is the application of transportation traffic engineering theory to

telecommunications Telecommunication, often used in its plural form or abbreviated as telecom, is the transmission of information over a distance using electronic means, typically through cables, radio waves, or other communication technologies. These means of ...

. Teletraffic engineers use their knowledge of

statistics Statistics (from German language, German: ', "description of a State (polity), state, a country") is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data. In applying statistics to a s ...

including

queuing theory Queueing theory is the mathematical study of waiting lines, or queues. A queueing model is constructed so that queue lengths and waiting time can be predicted. Queueing theory is generally considered a branch of operations research because th ...

, the nature of traffic, their practical models, their measurements and

simulations A simulation is an imitative representation of a process or system that could exist in the real world. In this broad sense, simulation can often be used interchangeably with model. Sometimes a clear distinction between the two terms is made, in ...

to make predictions and to plan telecommunication networks such as a

telephone network A telephone network is a telecommunications network that connects telephones, which allows telephone calls between two or more parties, as well as newer features such as fax and internet. The idea was revolutionized in the 1920s, as more and more ...

or the

Internet The Internet (or internet) is the Global network, global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a internetworking, network of networks ...

. These tools and knowledge help provide reliable service at lower cost. The field was created by the work of A. K. Erlang for

circuit-switched Circuit switching is a method of implementing a telecommunications network in which two network nodes establish a dedicated communications channel ( circuit) through the network before the nodes may communicate. The circuit guarantees the full ...

networks but is applicable to

packet-switched network In telecommunications, packet switching is a method of grouping data into short messages in fixed format, i.e. '' packets,'' that are transmitted over a digital network. Packets consist of a header and a payload. Data in the header is used b ...

s, as they both exhibit Markovian properties, and can hence be modeled by e.g. a Poisson arrival process. The observation in traffic engineering is that in large systems the

law of large numbers In probability theory, the law of large numbers is a mathematical law that states that the average of the results obtained from a large number of independent random samples converges to the true value, if it exists. More formally, the law o ...

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.

References

External links

* "Deploying IP and MPLS QoS for Multiservice Networks: Theory and Practice" by John Evans, Clarence Filsfils (Morgan Kaufmann, 2007, ) * V. B. Iversen, Teletraffic Engineering handbook,

* M. Zukerman, Introduction to Queueing Theory and Stochastic Teletraffic Models
PDF
{{DEFAULTSORT:Teletraffic Engineering Teletraffic, Queueing theory Broadband Telecommunications de:Traffic Engineering ja:通信トラヒック工学

See also

References

External links