抄録
We have been developing a transmission system for next generation terrestrial broadcasting that enables 8K Super Hi-Vision. Regarding the carrier modulation scheme, we have been studying non-uniform constellations (NUCs) which improve the transmission performance. In this study, we verified that the improvement in the required CNR corresponds to the improvement in the CNR theoretically calculated from the BICM (Bit-Interleaved Coded Modulation) capacity and that the improvement becomes greater as the bit/symbol increases in the carrier modulation.
