A CRC-SCL based Decoding Algorithm of Polar Codes

HE Tian-guang; DU Jiang; ZHENG Yu-zheng

doi:10.13756/j.gtxyj.2017.02.006

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A CRC-SCL based Decoding Algorithm of Polar Codes

- A CRC-SCL based Decoding Algorithm of Polar Codes
- Study on Optical communication Issue 2, Pages: 19-22(2017)
- 作者机构：
  
  成都信息工程大学通信工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2017.02.006
  CLC： TN911.22
- Published：2017，
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[1]何天光,杜江,郑郁正.一种基于CRC-SCL的极化码译码算法[J].光通信研究,2017(02):19-22+46.

HE Tian-guang, DU Jiang, ZHENG Yu-zheng. A CRC-SCL based Decoding Algorithm of Polar Codes. [J]. Study on Optical communication (2):19-22(2017)
[1]何天光,杜江,郑郁正.一种基于CRC-SCL的极化码译码算法[J].光通信研究,2017(02):19-22+46. DOI： 10.13756/j.gtxyj.2017.02.006.

HE Tian-guang, DU Jiang, ZHENG Yu-zheng. A CRC-SCL based Decoding Algorithm of Polar Codes. [J]. Study on Optical communication (2):19-22(2017) DOI： 10.13756/j.gtxyj.2017.02.006.

摘要

PC（极化码）是一种能够达到香农极限的纠错编码技术。经过近几年的研究

许多高性能的译码算法相继被提出。文章从传统的SC（连续消除）译码算法入手

详细研究了算法原理和结构。为了提高极化码的译码性能

提出了CRC（循环冗余校验码）辅助的SCL（序列连续消除）算法

同时引入了LC（懒惰的复制）算法来降低算法的复杂度。仿真结果表明

CRC-SCL算法与SC算法相比

性能得到了显著提升。

Abstract

Polar codes is a type of error-correction codes

which can reach the Shannon limit.Through years of study

many high-performance decoding algorithms have been proposed.Based on the traditional successive cancellation decoding algorithm

we study the principles and structure of the algorithm.In order to improve the performance of polar codes

we propose CRCSCL and lazy copy algorithms to reduce the complexity of the algorithm.The simulation results show that compared with the SC algorithm

the SCL algorithm can significantly improve decoding performance with lower complexity.

关键词

极化码连续消除序列连续消除懒惰的复制

Keywords

polar codesSCSCLlazy copy

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School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications

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