Unidad Erlang — El Erlang es una unidad adimensional utilizada en telefonía como una medida estadística del volumen de tráfico. Recibe el nombre del ingeniero danés A. K. Erlang, pionero de la teoría de colas. El tráfico de un Erlang corresponde a un recurso… … Wikipedia Español
Erlang unit — The erlang (symbol E [ [http://www.unc.edu/ rowlett/units/dictE.html How Many? A Dictionary of Units of Measurement] ] ) as a dimensionless unit is used in telephony as a statistical measure of the volume of telecommunications traffic. It is… … Wikipedia
Grade of service — In telecommunication engineering, and in particular teletraffic engineering, the quality of voice service is specified by two measures: the grade of service (GoS) and the quality of service (QoS).Grade of service is the probability of a call in a … Wikipedia
Traffic intensity — In telecommunication networks, traffic intensity is a measure of the average occupancy of a server or resource during a specified period of time, normally a busy hour.It is measured in traffic units (erlangs) and defined as the ratio of the time… … Wikipedia
Engset calculation — The Engset calculation is a formula to determine the probability of congestion occurring within a telephony circuit group. It was named after its developer, T. O. Engset. The level of congestion can be used to determine a network s performance as … Wikipedia
Spectral efficiency — Spectral efficiency, spectrum efficiency or bandwidth efficiency refers to the information rate that can be transmitted over a given bandwidth in a specific communication system. It is a measure of how efficiently a limited frequency spectrum is… … Wikipedia
Erlang-B — (sometimes also written without the hyphen Erlang B) is a formula derived from the Erlang distribution to describe the probability of call loss on a group of circuits (in a circuit switched network, or equivalent). It is, for example, used in… … Wikipedia
TXE — TXE, which stands for Telephone eXchange Electronic, was the designation given to a family of telephone exchanges developed by the British General Post Office (GPO), now BT, designed to replace the ageing Strowger systems. When World War II ended … Wikipedia
Erlang (Unité) — Pour les articles homonymes, voir Erlang. En télécommunication, l erlang est une unité de mesure d intensité du trafic téléphonique, mise au point par Agner Krarup Erlang. L erlang mesure le nombre de sessions de communication et leurs durées sur … Wikipédia en Français
Erlang (unite) — Erlang (unité) Pour les articles homonymes, voir Erlang. En télécommunication, l erlang est une unité de mesure d intensité du trafic téléphonique, mise au point par Agner Krarup Erlang. L erlang mesure le nombre de sessions de communication et… … Wikipédia en Français
Erlang (unité) — Pour les articles homonymes, voir Erlang. L erlang (symbole E) est une unité sans dimension, qui est utilisé en téléphonie comme une mesure statistique de la charge d un élément tel que le circuit de téléphone ou l équipement de commutation… … Wikipédia en Français