  We present a new cosmologically motivated mock redshift survey of the Dusty
Star-Forming Galaxy population. Our mock survey is based on the Bolshoi-Planck
dark-matter halo simulation and covers an area of 5.3 sq. degree. Using a
semi-empirical approach, we generate a light cone and populate the dark-matter
haloes with galaxies. Infrared properties are assigned to the galaxies based on
theoretical and empirical relations from the literature. Additionally,
background galaxies are gravitationally lensed by dark-matter haloes along the
line-of-sight assuming a point-mass model approximation. We characterize the
mock survey by measuring the star formation rate density, integrated number
counts, redshift distribution, and infrared luminosity function. When compared
with single-dish and interferometric observations, the predictions from our
mock survey closely follow the compiled results from the literature. We have
also directed this study towards characterizing one of the extragalactic legacy
surveys to be observed with the TolTEC camera at the Large Millimeter
Telescope: the 0.8 sq. degree Ultra Deep Survey, with expected depths of 0.025,
0.018 and 0.012 mJy beam$^{-1}$ at 1.1, 1.4 and 2.0 mm. Exploiting the
clustering information in our mock survey, we investigate its impact on the
effect of flux boosting by the fainter population of dusty galaxies, finding
that clustering can increase the median boosting by 0.5 per cent at 1.1 mm, 0.8
per cent at 1.4 mm and, 2.0 per cent at 2.0 mm, and with higher dispersion.
