  We apply a previously developed scheme to consistently include the improved
saturation model for the unintegrated gluon distribution (UGD) in order to
evaluate, in the framework of $k_{t}$ factorization, at small $x$ at the
next-to-leading order (NLO) in $\alpha_{s}$. We start the unintegrated gluon
distribution with a parametrization of the deep inelastic structure function
for electromagnetic scattering with protons, and then extract the color dipole
cross section, which preserves its behavior success in a wide range of
$k_{t}^{2}$ in comparisons with the UGD models (M. Hentschinski, A. Sabio Vera
and C. Salas (HSS), I.P.Ivanov and N.N.Nikolaev (IN) and G. Watt, A.D. Martin
and M.G. Ryskin (WMR)) . These results show that the geometric scaling holds
for the improved saturation model in a wide kinematic region $rQ_{s}$, and are
comparable with the Golec-Biernat-W$\ddot{\mathrm{u}}$sthoff (GBW) model. The
unintegrated gluon distribution at low and high momentum transfer in a wide
range of $x$ is considered.
