In this paper, we propose a decision-aided scheme for parallel SC-List decoding of polar codes. At the parallel SC-List decoder, each survival path is extended based on multiple information bits, therefore the number of split paths becomes very large and the sorting to find the top L paths becomes very complex. We propose a decision-aided scheme to reduce the number of split paths and thus reduce the sorting complexity.
@article{arxiv.1506.02955,
title = {A Decision-Aided Parallel SC-List Decoder for Polar Codes},
author = {Bin Li and Hui Shen and Kai Chen},
journal= {arXiv preprint arXiv:1506.02955},
year = {2015}
}