比特交织编码及迭代译码系统的标识映射设计及性能分析

Design and performance analysis of labeling map methods for BICM-ID

重点研究了对比特交织编码及迭代译码(B ICM-ID)系统性能影响较大的信号标识映射方法,提出了一种满足给定区间性能要求的最佳映射(DRO)的设计方法。通过对各种映射方法特征参数的系统研究,以及对迭代译码系统渐进性能限的分析,得出纠错编码采用卷积码时决定B ICM-ID系统性能的关键参数。

Labeling maps affecting the performance of bit-interleaved coded modulation with iterative decoding （BICM-ID） system were investigated, and a new labeling map called the defined region optimum symbol map （DRO）, which satisfies performance requirement in a given SNR region, was proposed. By systematic research of the characteristic parameters of various labeling maps and analysis of the asymptotic performance of the iterative decoding system, key parameters to decide the performance of the BICM-ID system were obtained when convolutional codes were used as error correction codes.