  Satellites and terrestrial cellular networks can be integrated together for
extended broadband coverage in e.g., maritime communication scenarios. The
co-channel interference (CCI) is a challenging issue for spectrum sharing
between satellites and terrestrial networks. Different from previous studies
that adopt full channel state information (CSI) or CSI with Gaussian estimation
errors for CCI mitigation, we consider a more practical case with only
slowly-varying large-scale CSI to facilitate overhead reduction. A joint power
and channel allocation scheme is proposed for the terrestrial system, under the
constraint of leakage interference to satellite mobile terminals (MTs). The
proposed scheme provides near-optimal performance according to both theoretical
analysis and simulation results.
