Asymptotic inversion of the Erlang B formula

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The Erlang B formula represents the steady-state blocking probability in the Erlang loss model or M=M=s=s queue. We derive asymptotic expansions for the offered load that matches, for a given number of servers, a certain blocking probability. In addressing this inversion problem we make use of various asymptotic expansions for the incomplete gamma function. A similar inversion problem is investigated for the Erlang C formula.
Original languageEnglish
Place of PublicationEindhoven
Number of pages24
Publication statusPublished - 2008

Publication series

NameReport Eurandom
ISSN (Print)1389-2355


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