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Erlang (/ ˈ ɜːr l æ ŋ / UR-lang) is a general-purpose, concurrent, functional high-level programming language, and a garbage-collected runtime system.The term Erlang is used interchangeably with Erlang/OTP, or Open Telecom Platform (OTP), which consists of the Erlang runtime system, several ready-to-use components (OTP) mainly written in Erlang, and a set of design principles for Erlang ...
The erlang (symbol E [1]) is a dimensionless unit that is used in telephony as a measure of offered load or carried load on service-providing elements such as telephone circuits or telephone switching equipment. A single cord circuit has the capacity to be used for 60 minutes in one hour. Full utilization of that capacity, 60 minutes of traffic ...
OTP is a collection of useful middleware, libraries, and tools written in the Erlang programming language.It is an integral part of the open-source distribution of Erlang. . The name OTP was originally an acronym for Open Telecom Platform, which was a branding attempt before Ericsson released Erlang/OTP as open sou
Elixir is a functional, concurrent, high-level general-purpose programming language that runs on the BEAM virtual machine, which is also used to implement the Erlang programming language. [3] Elixir builds on top of Erlang and shares the same abstractions for building distributed, fault-tolerant applications.
Erlang (programming language), a programming language Erlang (unit) , a unit to measure traffic in telecommunications or other domains Erlang distribution , a probability distribution describing the time between events
To determine the correct number of circuits that are required, telecommunications service providers make use of Traffic Tables. [4] An example of a Traffic Table can be viewed in Figure 1 . [ 4 ] It follows that in order for a telecommunications network to continue to offer a given Grade of Service, the number of circuits provided in a circuit ...
The loss network was first studied by Erlang for a single telephone link. [2] Frank Kelly was awarded the Frederick W. Lanchester Prize [ 3 ] for his 1991 paper Loss Networks [ 4 ] [ 5 ] where he demonstrated the behaviour of loss networks can exhibit hysteresis .
For example, one call-hour could be one call for an hour or two (possibly concurrent) calls for half an hour each. Call-seconds give a measure of the average number of concurrent calls. Offered load is defined as the traffic density per unit time, measured in erlangs. An erlang is defined as one call-hour per hour, or 3,600 call-seconds per hour.