Low-complexity LDPC coded BICM-ID with orthogonal modulations |
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Authors: | Che S. Tong S. |
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Affiliation: | State Key Lab. of ISN, Xidian Univ., China; |
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Abstract: | A low-complexity low density parity check (LDPC) coded bit-interleaved coded modulation with iterative decoding (BICM-ID) scheme with orthogonal modulations is proposed. With a novel mapping strategy of coded bits to symbols, the proposed scheme is equivalent to a generalised LDPC code with Hadamard constraints and thus orthogonal demodulation can be merged into the iterative LDPC decoding process, resulting in a simpler implementation and a lower computational complexity. |
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