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arXiv · 1208.3091

An Adaptive Successive Cancellation List Decoder for Polar Codes with Cyclic Redundancy Check

Bin Li·Hui Shen·David Tse
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Abstract

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 the decoder outputs contain at least one survival path which 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 list size can achieve a frame error rate FER=0.001 at Eb/No=1.1dB, which is about 0.2dB from the information theoretic limit at this block length.

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Bin Li, Hui Shen, David Tse. 2012-08-15. An Adaptive Successive Cancellation List Decoder for Polar Codes with Cyclic Redundancy Check. https://arxiv.org/abs/1208.3091

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