  In this paper, we look at the problem of treating interference as noise (TIN)
in the Gaussian interfering multiple access channel (IMAC). The considered
network comprises $K$ mutually interfering multiple access channels (MACs),
each consisting of two transmitters communicating independent messages to one
receiver. We define the TIN scheme for this channel as one in which each MAC
performs a power controlled version of its capacity-achieving strategy while
treating interference from all other MACs as noise. We characterize an
achievable generalized degrees-of-freedom (GDoF) region under the TIN scheme
and identify a regime of parameters (in terms of channel strength levels) where
this region is optimal.
