Performance and Implementation of Enhanced Multi CRC-LSC Polar Codes

Abstract

By adopting cyclic redundancy check (CRC), the block error rate (BLER) of polar code which were recently chosen to protect the channel information can be highly improved. In this paper, we pay more attention to the structure of CRC to improve the performance of finite length polar code. An enhanced multi CRC- list successive cancellation (LSC) decoding scheme by segmenting information vector using different generator polynomials is proposed. Simulation results show that the BLER performance of enhanced multi CRC-LSC polar codes over additive white Gaussian noise (AWGN) channel significantly outperforms the multi CRC-LSC ones with no increase in complexity. The results offer a useful direction for the future of wireless communications.