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A novel irregular low density parity check (LDPC) coded link adaptation technique is presented to achieve flexible spectral efficiency and various reliabilities with irregular modulation. The mapping rule between LDPC coded bits and signal constellations is optimized in terms of LDPC code degree distribution and inherent unequal error protection property of(More)
The irregular modulation (IM) technique was initially proposed in bit-interleaved coded modulation (BICM) for convolutional code and turbo code cases (Schreckenbach and Bauch, 2006), which apply different signal constellations and mappings within one codeword. The IM technique gives a simple method to improve flexibility of BICM, which can also provide an(More)
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