  A repeating fast radio burst (FRB), FRB 20180916B (hereafter FRB 180916), was
reported to have a 16.35-day period. This period might be related to a
precession period. In this paper, we investigate two precession models to
explain the periodic activity of FRB 180916. In both models, the radio emission
of FRB 180916 is produced by a precessing jet. For the first disk-driven jet
precession model, an extremely low viscous parameter (i.e., the dimensionless
viscosity parameter $\alpha \lesssim 10^{-8}$) is required to explain the
precession of FRB 180916, which implies its implausibility. For the second
tidal force-driven jet precession model, we consider a compact binary consists
of a neutron star/black hole and a white dwarf; the white dwarf fills its Roche
lobe and mass transfer occurs. Due to the misalignment between the disk and
orbital plane, the tidal force of the white dwarf can drive jet precession. We
show that the relevant precession periods are several days to hundreds of days,
depending on the specific accretion rates and component masses. The duration of
FRB 180916 generation in the binary with extremely high accretion rate will be
several thousand years.
