A critical set check assisted decoding algorithm for polar code SCLF
In order to reduce the complexity of Successive Cancellation List Flip(SCLF)decoding algorithm,a critical set check assisted SCLF decoding algorithm for polar code is proposed.The algorithm reduces the decoding complexity by parity-checking(PC)the information bits of the critical set and terminating the current round of decoding in advance when the information bits of the critical set do not satisfy the parity-check,which reduces the subsequent invalid decoding process.Simulation results show that the performance of the proposed PC-SCLF decoding algorithm is slightly improved compared with the existing SCLF decoding algorithm,and the decoding complexity is reduced by 5.37%~23.6%.
polar codesuccessive cancellation list flipcritical setparity checkcyclic redundancy check