CRC-Aided Parity-Check Polar Coding

Abstract

Parity-check (PC) polar codes can yield better error-correcting performance compared with the cyclic redundancy check (CRC) aided polar codes under successive cancellation list decoder. However, PC bits are incapable of detecting error as effective as CRC. To overcome this shortage, this paper proposes a scheme of CRC-aided PC polar codes. The proposed scheme can detect error before decoding is completed and outperform the standard CRC-assisted polar codes with better capability of error detecting.INDEX TERMS Polar codes, cyclic redundancy check (CRC), successive cancellation list decoder, paritycheck coding.