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- W2923621805 abstract "The successive-cancellation list (SCL) and successive-cancellation flip (SCF) decoding can be used to improve the performance of polar codes, especially for short to moderate length codes. However, their serial decoding nature results in significant decoding latencies. Implementing some operations in parallel can reduce their decoding latencies. This paper presents fast implementations of the SCL and SCF decoders. In particular, we propose fast parallel list decoders for five newly identified types of nodes in the decoding tree of a polar code, which significantly improves the decoding latency. We also present novel fast SCF decoders that decode some special nodes in the decoding tree of a polar code without serially computing bit log-likelihood ratios. Using our proposed fast parallel SCF decoders, we observed an improvement up to 81% with respect to the original SCF decoder. This significant reduction in the decoding latency is observed without sacrificing the bit-error-rate performance of the code." @default.
- W2923621805 created "2019-04-01" @default.
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- W2923621805 date "2019-07-01" @default.
- W2923621805 modified "2023-10-16" @default.
- W2923621805 title "Fast Successive-Cancellation-Based Decoders of Polar Codes" @default.
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- W2923621805 doi "https://doi.org/10.1109/tcomm.2019.2906232" @default.
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