In this letter, we propose an adaptive SC (Successive Cancellation)-List decoder for polar codes with CRC. This adaptive SC-List decoder iteratively increases the list size until at least one survival path can pass CRC. Simulation shows that the adaptive SC-List decoder provides significant complexity reduction. We also demonstrate that polar code (2048, 1024) with 24-bit CRC decoded by our proposed adaptive SC-List decoder with very large maximum list size can achieve a frame error rate FER ≤ 10 −3 at E b /No = 1.1dB, which is about 0.25dB from the information theoretic limit at this block length.
An adaptive Successive Cancellation-List decoder with CRC was proposed in article REF , which is able to increase the list and reduce significant complexity.
An Adaptive Successive Cancellation List Decoder for Polar Codes with Cyclic Redundancy Check
IEEE Communications Letters
IEEE Communications Letters
Computer Science Mathematics