Noise-Aided Belief Propagation List Bit-Flip Decoder for Polar Codes

被引：0

作者：

Yang Yuyu ^{[1
]}

Yin Chao

Jan Qasim

Hu Yaoyue

Pan Zhiwen

Liu Nan

You Xiaohu

机构：

[1] Southeast Univ, Natl Mobile Commun Res Lab, Nanjing, Peoples R China

来源：

2020 12TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP) | 2020年

关键词：

polar codes; belief propagation; bit-flip; list decoding; stochastic perturbation;

D O I：

10.1109/wcsp49889.2020.9299849

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Though BP-based polar decoder has low latency, the BLER performance of it does not outperform the CA-SCL decoder with a large list size, which prevents BP-based decoder from its practical implementation. In this paper, we propose a noise-aided belief propagation list bit-flip (NA-BPLF) decoder by merging BPL with artificial noise and bit flipping. In NA-BPLF, when CA-BPL decoding fails, the error-prone bit is chosen for the bit flipping operations based on the decoding results generated by the previous CA-BPL decoding process, and then artificial noise is superimposed. Simulation results show that NA-BPLF achieves better BLER performance which is close to large list size CA-SCL decoder while still keeping the low latency.

引用

页码：807 / 810

页数：4