NO KEYWORDS CCI Cell-free Decoding Encoding FBMC Hybrid networks LEO Low Earth orbit (LEO) MISO communication MUD Massuve MIMO Max-min performance Multicast NOMA NOMA OQAM Receiving antennas Satellites Spatial data multiplexing Spectral efficiency Transmitters beamforming clustering fairness grant-free massive IoT massive MIMO multibeam satellites non-orthogonal multiple access orthogonal frequency division multiplexing sum-rate