Polar codes have drawn much attention and been adopted in 5G New Radio (NR) due to their capacity-achieving performance. Recently, as the emerging deep learning (DL) technique has breakthrough achievements in many fields, neural network decoder was proposed to obtain faster convergence and better performance than belief propagation (BP) decoding. However, neural networks are memory-intensive and hinder the deployment of DL in communication systems. In this work, a low-complexity recurrent neural network (RNN) polar decoder with codebook-based weight quantization is proposed. Our test results show that we can effectively reduce the memory overhead by 98% and alleviate computational complexity with slight performance loss.
@article{arxiv.1810.12154,
title = {Low-complexity Recurrent Neural Network-based Polar Decoder with Weight Quantization Mechanism},
author = {Chieh-Fang Teng and Chen-Hsi Wu and Kuan-Shiuan Ho and An-Yeu Wu},
journal= {arXiv preprint arXiv:1810.12154},
year = {2019}
}
Comments
5 pages, accepted by the 2019 International Conference on Acoustics, Speech, and Signal Processing (ICASSP)