Path Splitting Selecting Strategy-Aided Successive Cancellation List Algorithm for Polar Codes

Successive cancellation list (SCL) decoder provides a good trade-off between error-correcting performance and complexity. To simplify the decoding algorithm with negligible performance loss, a path splitting selecting (PSS) strategy is proposed based on analyzing the reason why the SCL decoder fails. On the basis of the PSS strategy, two schemes are proposed to find erroneous information bits more accurately. Simulation results show that the proposed strategy based on the search set and decision function is a good solution to reduce the complexity with almost no performance loss.