Performance Analysis for Rate Splitting Uplink NOMA Transmission in High Throughput Satellite Systems

This letter investigates the return link performance of a high throughput satellite system, where the feeder link uses free-space optical technology while the user link employs radio frequency transmission. Based on the statistical channel state information, we first propose a scheme for combining rate splitting uplink non-orthogonal multiple access with beamforming in the user link to improve the...