基于凿孔的系统极化码编码协作

doi:10.3969/j.issn.0255-8297.2017.02.001

应用科学学报 ›› 2017, Vol. 35 ›› Issue (2): 139-148.doi: 10.3969/j.issn.0255-8297.2017.02.001

基于凿孔的系统极化码编码协作

李坤, 吴绍华, 高翔, 张钦宇

哈尔滨工业大学深圳研究生院, 广东深圳 518055

收稿日期:2016-06-28 修回日期:2016-12-01 出版日期:2017-03-30 发布日期:2017-03-30
通信作者: 吴绍华,副教授,研究方向:5G先进信道编码技术、无线图像传输、压缩感知理论及应用等,E-mail:hitwush@hit.edu.cn;张钦宇,教授,博导,研究方向:深空通信、5G移动通信、生物医学电子等,E-mail:zqy@hit.edu.cn E-mail:hitwush@hit.edu.cn;zqy@hit.edu.cn
基金资助:
国家自然科学基金（No.61461136001，No.61371102）；国家“863”高技术研究发展计划基金（No.2014AA01A704）资助

Systematic Polar Coded Cooperation Based on Puncturing

LI Kun, WU Shao-hua, GAO Xiang, ZHANG Qin-yu

Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, Guangdong Province, China

Received:2016-06-28 Revised:2016-12-01 Online:2017-03-30 Published:2017-03-30

摘要/Abstract

摘要：

设计衰落信道下增益高且协作程度灵活可变的极化码编码协作方案，研究了基于凿孔的系统极化码编码协作方法.论证了将非系统极化码的凿孔算法扩展应用于系统极化码的可行性，在此基础上将信息位重休眠优化的准均匀凿孔算法应用于系统极化码，实现了基于凿孔的系统极化码编码协作.仿真结果表明所提方案表现出显著的系统收益.以码长256、码率0.25的极化码编码协作为例，当协作程度为50%时，设计方案性能较基于凿孔的非系统极化码编码协作提升2.0~2.5 dB.

关键词: 系统极化码, 凿孔, 编码协作, 极化码, 信息位重休眠

Abstract:

To design polar coded cooperation with high gain and flexible cooperation in a fading channel, systematic polar coded cooperation based on puncturing is investigated. It is shown that puncturing algorithms for non-systematic polar codes are also applicable to systematic polar codes. A quasi-uniform puncturing algorithm optimized by information bit refreezing is then applied to the systematic polar codes. Thus, systematic polar coded cooperation is proposed. Simulation results show that the proposed method significantly outperforms non-systematic polar coded cooperation. Taking the case in which the cooperation level is 50% as an example, 2.0~2.5 dB performance gain is achieved when the code length and code rate are 256 and 0.25, respectively.

Key words: polar code, puncturing, information bit refreezing, coded cooperation, systematic polar code

中图分类号:

TN911.22

李坤, 吴绍华, 高翔, 张钦宇. 基于凿孔的系统极化码编码协作[J]. 应用科学学报, 2017, 35(2): 139-148.

LI Kun, WU Shao-hua, GAO Xiang, ZHANG Qin-yu. Systematic Polar Coded Cooperation Based on Puncturing[J]. Journal of Applied Sciences, 2017, 35(2): 139-148.

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基于凿孔的系统极化码编码协作

Systematic Polar Coded Cooperation Based on Puncturing

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