Dynamic Perturbation Decoding of Polar-CRC Cascaded Code
Dongliang Xiao, Zhenzhen Gu · 2020
The dynamic perturbation (DP) decoding algorithm of Cyclic Redundancy Check (CRC) concatenated polar codes over Additive White Gaussian Noise (AWGN) channel is proposed. CRC concatenated polar codes append the CRC bits at the end of information bits and then feeds the resulting vector as input to the polar encoder. This paper improves the CRC-aided decoding method of polar codes based on perturbation, and proposes a dynamic perturbation decoding method for Polar-CRC concatenation code by controlling the interference noise dynamically. The proposed dynamic perturbation decoding is better than the original method with successive cancellation (SC) decoding.