A tractable approach to small cell dimensioning

Dynamic dimensioning adapting both base station (BS) density and maximum BS transmission power for varying traffic demands requires a tractable approach to two competing objectives of cell planning: coverage and rate capacity. This paper introduces a mathematical modeling of spatial distributions of other cell interference (OCIF) and interference to own-cell power ratio (IOPR) for down-link reception with respect to the distance between a mobile and its serving BS following the best-cell configuration. This allows a more realistic evaluation of the relation between coverage and capacity than nearest-cell configuration, based on which analytical results of maximum BS transmission power vs. cell size, and (admitted) user density vs. cell size are derived for small-cell dimensioning purpose.