  Suppose sender-receiver transmission links in a downlink network at given
  data rate are subject to fading, path-loss and inter-cell
  interference, and that transmissions either pass, suffer loss, or
  incur retransmission delay. We introduce a method to obtain the
  average activity level of the system required for handling the buffered work
  and from this derive the resulting coverage probability and key
  performance measures. The technique involves a family of
  stationary buffer distributions which is used to solving iteratively
  a nonlinear balance equation for the unknown busy-link probability and
  then identifying throughput, loss probability and delay.
  The results allow for straightforward numerical investigation of
  performance indicators, are in special cases explicit, and may be
  easily used to study the trade-off between reliability, latency, and
  data rate.
