  We analyze the performance of coherent impulsive-radio (IR) ultra-wideband
(UWB) channel in presence of the interference generated by concurrent
transmissions of the systems with the same impulsive radio. We derive a novel
algorithm, using Monte-Carlo method, to calculate a lower bound on the rate
that can be achieved using maximum-likelihood estimator. Using this bound we
show that such a channel is very robust to interference, in contrast to the
nearest-neighbor detector.
