After a long series of papers with the loop-loop correlation model to
calculate cross sections, we recently have addressed
the gluon structure function of a color dipole in
near-light-cone SU(2) lattice QCD as a function of x_{B}.
The quark and antiquark are taken as external non-dynamical degrees of freedom
which act as sources of the gluon string configuration defining the dipole.
We compute the color dipole matrix element
of transversal chromo-electric and
chromo-magnetic field operators separated along a direction close to the light cone,
the Fourier transform of which is the gluon structure function. As vacuum state in the pure
glue sector, we use
a variational ground state of the near-light-cone Hamiltonian.
We derive a recursion relation for the gluon structure function
on the lattice similar to the perturbative DGLAP
equation. It depends on the number of transversal links
assembling the Schwinger string of the dipole. Fixing the mean momentum fraction of the
gluons to the "experimental value" in a proton, we compare our gluon structure
function for a dipole state with four links with the NLO *{MRST}* 2002
and the *{CTEQAB-0}* parameterizations at Q^{2} =1.5 GeV^{2}. Within
the systematic uncertainty we
find rather good agreement. We also discuss the low x_{B} behavior of the gluon structure
function in our model calculation.