Mapping Selection and Code Construction for 2^m-ary Polar-Coded Modulation
Mapping Selection and Code Construction for 2^m-ary Polar-Coded Modulation
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DOI：
10.1109/lcomm.2012.040912.120070
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发表时间：
2012-04
期刊：
影响因子：
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通讯作者：
Dong-Min Shin;Seung-Chan Lim;Kyeongcheol Yang
中科院分区：
文献类型：
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作者：
Dong-Min Shin;Seung-Chan Lim;Kyeongcheol Yang
提出了一种适用于2米远极编码调制的映射策略和编码构造方法。为了更有效地找到极码的良好映射，利用其极化矩阵的性质，减少了映射模式的搜索空间。一旦选择了一个映射，将自动确定用于定义极性代码的未冻结信息位集。数值结果表明，当采用带灰度标记的脉冲幅度调制（PAM）时，该方法比使用随机映射和二元相移键控（BPSK）调制优化的极性码的传统方法可提供约0.3-0.5 dB的性能增益。
This paper proposes a mapping strategy and a code construction method for 2m-ary polar-coded modulation. In order to find a good mapping for a polar code in an efficient way, we reduce a search space for mapping patterns by exploiting the properties of its polarizing matrix. Once a mapping is selected, the set of unfrozen information bits to define a polar code is automatically determined. Numerical results show that our approach can provide a performance gain of about 0.3-0.5 dB over a conventional approach using random mapping and the polar code optimized for binary phase-shift keying (BPSK) modulation, when pulse-amplitude modulation (PAM) with Gray labelling is employed.