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Soft-decision-aided multi-set steered space-time shift keying intrinsically amalgamated with channel coding is proposed in order to attain near capacity-performance. Multi-set space-time shift keying (MS-STSK) is a multiple-input multiple-output scheme, which combines the concepts of spatial modulation (SM) and STSK for the sake of achieving high data rates and enhanced system integrity. Furthermore, an MS-STSK is combined with orthogonal frequency-division multiplexing (OFDM) as well as single-carrier frequency domain equalization (SC-FDE) and additionally enhanced by analog beamforming in order to support communications at millimeter-wave (mmWave) frequencies. Given that OFDM-based SM systems cannot directly benefit from the reduced number of RF chains of SM due to the spreading effects of the fast-Fourier transform and they suffer from a high peak-to-average power ratio, we opt for …