  The concept of relativistic scaling is applied to describe the most recent
data from inclusive electron-deuteron scattering at large momentum transfer. We
calculate the asymptotic scaling function f(y) of the deuteron using its
relationship with the nucleon momentum distribution. The latter is obtained in
the framework of the relativistic light-front dynamics (LFD) method, in which
the deuteron is described by six invariant functions f_{i} (i=1,...,6) instead
of two (S and D waves) in the nonrelativistic case. Comparison of the LFD
asymptotic scaling function with other calculations using $S$ and $D$ waves
corresponding to various nucleon-nucleon potentials, as well as with the
Bethe-Salpeter result is made. It is shown that for |y|> 400 MeV/c the
differences between the LFD and the nonrelativistic scaling functions become
larger.
