The present document aims at assessing the performance of a SC-FDMA-based radio waveform over geostationary satellites in Ku/Ka band. Moreover@ it aims at defining an evaluation framework for performance comparison with existing waveform technologies (e.g. DVB-S2@ DVB-S2X and DVB-RCS2)@ focusing on the radio and physical layers. The present document deals with satellite return link only. The forward link is for further study. For the return link@ two use cases have been identified and treated so far@ Satellite News Gathering (DSNG) and Broadband Access. The present document provides a description of the waveforms to be compared; it identifies their key characteristics@ defines the system model used for comparison and presents comparative performance results in terms of spectral efficiency. A complexity analysis is also performed.