  We explore an anomaly-free ${\textrm U}(1)$ gauge extended beyond the
Standard model (BSM) framework, to account for the baryon asymmetry of the
Universe, along with arranging for tiny neutrino mass. Neutrino masses are
generated via higher-dimensional operators (HDOs) involving three right-handed
neutrinos (RHNs) with gauge charges ($4$, $4$ and $-5$ respectively) and two
BSM scalars. This is an attractive framework as it can accommodate a keV scale
dark matter, with the lightest RHN being the candidate. The remaining two RHNs
are quasi-degenerate at the TeV-scale, actively participating in the process of
resonant leptogenesis through their decay governed by the same set of HDOs. The
RHNs being at the TeV scale, make this framework relevant for studying flavored
resonant leptogenesis. This TeV-scale resonant leptogenesis, after satisfying
the neutrino oscillation data, leads to interesting predictions on the Yukawa
sector of the model HDOs. The thermal evolution of the baryon asymmetry has
followed the experimental results rather accurately in that corner of parameter
space. As a matter of fact, this TeV-scale framework which in principle relies
on the low scale resonant leptogenesis typically leads to predictions that
potentially can be tested at the colliders. In particular, we consider the
same-sign dilepton signature that arises from the RHN pair production through
the decay of heavy gauge boson of the extra ${\textrm U}(1)$.
