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Erlang B Vs Erlang C systems

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  • #42036
    Vishal Jagtap

    We all know that Erlang B and Erlang C systems are dependent upon assumption of call blocking scenarios( and lot many…..but not the point of discussion)
    In a cellular system you have fixed no of radios and hence the fixed no of channels per site/sector. But the offered erlang traffic calculated in Erlang C system always shows less that Erlang B system. Why ?

    Wallis Dudhnath

    The Erlang B formula determines the probability that a call is blocked and is a measure of the Grade_of_Service for a Telecommunication environment. Traditionally, it was used for “trunked” systems.

    The primary driving element with Erlang B is that it estimates, statistically, the probability that all circuits will be busy when a call is attempted.

    The Erlang C model is more focused on delays. It is a delay model as opposed to a blocking model

    VBR/ Wallis Dudhnath

    Wallis Dudhnath

    Just a follow on.

    I just read the Technical Papers on this site. It provides an excellent explanation for Erlang “B” and “C”. Recommend that you look at the article.

    The cases for traditional “trunking” and Call Centers helps to see the application of Erlang “B” and “C”.

    VBR/ Wallis Dudhnath


    I need a difference for study use

Viewing 4 posts - 1 through 4 (of 4 total)
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