Introduction Of Teletraffic Engineering Telecommunications traffic engineering , teletraffic engineering , or traffic engineering is the application of traffic engineering theory to telecommunications . Teletraffic engineers use their knowledge of statistics including queuing theory , the nature of traffic, their practical models, their measurements and simulations to make predictions and to plan telecommunication networks such as a telephone network or the Internet . Traffic is defined as a total number of call passing through over a trunk.Channel is defined as a transmission medium.The field was created by the work of A. K. Erlang for circuit-switched networks .A good example of the use of teletraffic theory in practice is in the design and management of a call center . Call centers use teletraffic theory to increase the efficiency of their services and overall profitability through calculating how many operators are really needed at each time of the day.Que
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This is Agner Krarup Erlang Erlang An Erlang is a unit of telecommucications traffic measurement. An Erlang is defined as the average number of simultaneous calls on a system during one- hour period. Erlang defined as the traffic carried by a group of trunks In honor of Agner Krarup Erlang What is Erlang? Erlang = 1 call hour / hour 1 Erlang = 1 hour ( 60 minutes) of traffic Erlang = (calls/busy hour) x holding time Tips: units must be the same ! Erlang Example Question A subscriber makes 3 phone calls of 3 minutes, 4 minutes , and 2 minutes duration in 1 hours period. Calculate Minutes of traffic in the hour = number of calls x duration Minutes of traffic in the hour = (4min+3min+2min) Hours of traffic in the hour = 9 minutes / 60 minutes Hours of traffic in the hour = 0.15 Traffic of traffic in the hour = 0.15 Erl
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