@article{Raskutti2007Enhanced,
author = {G. Raskutti and A. Zalesky and E. W. M. Wong and M.
Zukerman},
title = {Enhanced blocking probability evaluation method for
circuit-switched trunk reservation networks},
journal = {IEEE Communications Letters},
volume = {11},
number = {6},
pages = {543-545},
month = {Jun.},
year = {2007},
abstract = {We consider the problem of estimating
steady-state blocking probability for circuit-switched networks that allow
alternate routing with particular emphasis on networks protected by trunk
reservation. We use a recently proposed blocking probability estimate, the
Overflow Priority Classification Approximation (OPCA) as an alternative to the
currently used Erlang's Fixed-Point Approximation (EFPA). We demonstrate
empirically that OPCA provides a better blocking estimate than EFPA for
circuit-switched networks with alternate routing, that are reasonably protected
by trunk reservation.}
}