  A lattice is a set of all the integer linear combinations of certain linearly
independent vectors. One of the most important concepts on lattice is the
successive minima which is of vital importance from both theoretical and
practical applications points of view. In this paper, we first study some
properties of successive minima and then employ some of them to improve the
suboptimal algorithm for solving an optimization problem about maximizing the
achievable rate of the integer-forcing strategy for cloud radio access networks
in [1].
