  The market trends towards the use of smaller dish antennas for TV satellite
receivers, as well as the growing density of broadcasting satellites in orbit
require the application of robust adjacent satellite interference (ASI)
cancellation algorithms at the receivers. The wider beamwidth of a small size
dish and the growing number of satellites in orbit impose an overloaded
scenario, i.e., a scenario where the number of transmitting satellites exceeds
the number of receiving antennas. For such a scenario, we present a two stage
receiver to enhance signal detection from the satellite of interest, i.e., the
satellite that the dish is pointing to, while reducing interference from
neighboring satellites. Towards this objective, we propose an enhanced
List-based Group-wise Search Detection (LGSD) receiver architecture that takes
into account the spatially correlated additive noise and uses the
signal-to-interference-plus noise ratio (SINR) maximization criterion to
improve detection performance. Simulations show that the proposed receiver
structure enhances the performance of satellite systems in the presence of ASI
when compared to existing methods.
