Symbol-Based Belief Propagation Decoder for Multilevel Polar Coded Modulation
Symbol-Based Belief Propagation Decoder for Multilevel Polar Coded Modulation
复制标题
用于多级极性编码调制的基于符号的置信传播解码器
DOI:
10.1109/lcomm.2016.2613980
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Zhang Yingxian
中科院分区:
文献类型:
--
作者:
Zhang Qingshuang;Liu Aijun;Pan Xiaofei;Zhang Yingxian
In this letter, symbol-based belief propagation decoder is proposed for multilevel polar coded modulation (MLPCM) scheme. Unlike the traditional multi-stage detection (MSD) strategy by decoding polar codes level by level after demapping, we directly calculate the probabilities of symbols and do demapping after the symbol decoding process so as to decrease the decoding delay and improve the performance of MLPCM. The lower bound of frame error rate for MLPCM is also estimated using the union bound technique. Numerical results show that the performance of proposed decoder well matches the estimated bound for pulse amplitude modulation (PAM) modulation and outperforms the MSD strategy about 0.5−1 dB with lower decoding delay, only at the cost of some additional computational complexity, which indicates its effectiveness.
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期刊:
2000 IEEE International Symposium on Information Theory (Cat. No.00CH37060)
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