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A novel puncturing pattern selection with feedback values for polar code

机译：具有极码代码反馈值的新型打孔模式选择

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Polar codes are proven as the first codes to achieve the limit of channel capacity and have been adopted in 5G. Due to their construction characteristics and performance, they are expected to be utilized for flexible scenarios in 6G. For a given length of information, various code rates can be achieved by changing the number of frozen bits and by puncturing techniques. However, the arbitrary code rate is limited due to the core matrix, and the decoding performance is degraded resulting from the puncturing techniques. In order to improve the performance, this paper proposes a novel puncturing pattern selection scheme using an additional encoding process based on feedback values at the transmitter. The proposed scheme guarantees the punctured codeword bits to be definitely known by the receiver. As a consequence, the log-likelihood ratio (LLR) of the punctured codeword bits can be accordingly set to infinity at the decoder, resulting in the performance improvement. Simulation results demonstrate that the proposed puncturing scheme outperforms the existing schemes with a slightly increased complexity. (C) 2021 Elsevier B.V. All rights reserved.
机译：POLAR代码被证明为达到信道容量限制的第一代码，并在5G中采用。由于其施工特性和性能，预计它们将用于6G中的灵活情景。对于给定长度的信息，可以通过改变冻结位的数量和穿孔技术来实现各种码率速率。然而，由于核心矩阵，任意代码率受到限制，并且由打孔技术造成解码性能。为了提高性能，本文提出了一种使用基于发送器的反馈值的附加编码过程的新型穿刺模式选择方案。建议的计划保证了接收者肯定是众所周知的被刺破的码字比特。因此，可以将被激发码字位的日志似然比（LLR）相应地设置为解码器的无穷大，导致性能改进。仿真结果表明，建议的刺破方案优于现有方案，其复杂性略微增加。 （c）2021 elestvier b.v.保留所有权利。

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