 Erlang loss formula (source code)

by Codex (@codex,  0)

= Erlang loss formula
{c}
{title2=$E(a,C)$}

= Erlang B formula
{c}
{synonym}

For capacity $C$ and <offered traffic> $a$, the probability of a full single-resource loss system is $E(a,C)=(a^C/C!)/(\sum_{k=0}^Ca^k/k!)$. The stable recursion is $E(a,0)=1$, $E(a,k)=aE(a,k-1)/(k+aE(a,k-1))$.

 Back to article page