A Control-Theoretic Approach to Precoding for Multi-Cast Multi-Beam over Satellite

This work explores an initial step in defining a principled and control-theoretic framework for multi-beam broadband satellite systems in a novel and challenging scenario of hybrid terrestrial-satellite mobile system architectures. Advanced control-theoretic design principles for a bent-pipe satellite payload concept for forward paths will be highlighted for: i) broadcast (point-to-multi-point) downlink on forward paths; ii) tradeoffs between terrestrial mobile network congestions and data transmission rates; and iii) judicious coordination of actual data rates and resilient precoding strategies under uncertainty for achieving reliable feeder link transmission by the ground gateway. The expected results will also help reveal new insights on risk-sensitive satellite-to-user downlinks and multicast transmission in the presence of frequency reuses as well as potential congestions from primary terrestrial mobile network counterparts.