In this paper, we integrate the 5G low-density parity-check (LDPC) coded modulation systems with hybrid shaping, where the centroid-based geometric shaping is implemented to remedy the performance loss of the many-to-one probabilistic shaping. Taking into account the fact that the 5G parity-check matrices have an uneven density in different parts, we elaborately design a simple row-column interleaver for the bit-interleaved coded modulation with iterative decoding (BICM-ID) system to allocate the ambiguous bits caused by the many-to-one mapping to the sparser parity part, resulting in the hybrid shaping for BICM-ID (HS-BICM-ID) system. Numerical results have shown that the HS-BICM-ID can obtain shaping gains of about 0.5 dB and 1.4 dB compared to the constant composition distribution matching (CCDM) shaping and the geometric shaping, respectively, while it can obtain a shaping gain of about 1.7 dB compared to the scheme with uniform input. Our work has also shown that, at low and moderate spectral efficiency, the presented hybrid shaping can achieve a significant shaping gain and effectively remedy the performance loss of dyadic many-to-one probabilistic shaping.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Hybrid Shaping for Bit-Interleaved Coded Modulation with Iterative Decoding


    Contributors:
    Yang, Jiayi (author) / Wang, Qianfan (author) / Li, Congduan (author) / Ma, Xiao (author)


    Publication date :

    2024-06-24


    Size :

    407654 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Turbo Trellis Coded Modulation with Iterative Decoding for Mobile Satellite Communications

    Divsalar, D. / Pollara, F. / Canada; Communications Research Centre et al. | British Library Conference Proceedings | 1997




    4.1201 Iterative Demodulation and Decoding for a Mobile Packet System with Parallel Concatenated Trellis-Coded Modulation

    Institute of Electrical and Electronics Engineers | British Library Conference Proceedings | 2002


    AIAA-2003-2390 Punctured Bit-Interleaved Coded Modulation for Mobile Satellite Communications

    Minowa, T. / American Institute of Aeronautics and Astronautics | British Library Conference Proceedings | 2003