Approximate Belief Propagation Decoder for Polar Codes
Menghui Xu, Shusen Jing, Jun Lin, Weikang Qian, Zaichen Zhang, Xiaohu You, Chuan Zhang
Abstract
Polar code is increasing its popularity recently for its capacity-achieving property for B-DMCs. However, when designing decoders for polar code, it has always been an inevitable concern for us to balance the decoding performance and the hardware consumption. In this paper, we propose an approximate belief propagation (BP) decoder for polar code for the first time. By introducing the approximate computation schemes, we reduced the critical path delay (CPD) and the hardware consumption of the conventional BP decoders. Simulation results show that the proposed approximate BP decoder achieves nearly the same decoding performance as the conventional one. Advantages of the proposed decoder has been verified by FPGA implementation.
BibTeX
@inproceedings{icassp2018_approximatebelie,
title = {Approximate Belief Propagation Decoder for Polar Codes},
author = {Menghui Xu and Shusen Jing and Jun Lin and Weikang Qian and Zaichen Zhang and Xiaohu You and Chuan Zhang},
booktitle = {ICASSP 2018},
year = {2018}
}