Approximations to probabilities of blocking after rearrangement in cellular mobile radio systems

One of the many means of increasing the capacity of cellular mobile communication systems is to rearrange calls in progress. Rearrangements can be done on such a way that some call requests, which would otherwise have been blocked, can be accommodated instead. Here, we look at the reduction in the probability of new call blocking-a measure of the increase in system capacity-that one rearrangement can deliver. This reduction is approximated by four analytical methods and compared against those obtained via simulations for two cellular systems