东南大学学报（自然科学版）2017，Vol.47Issue(1)：23-27,5.DOI:10.3969/j.issn.1001-0505.2017.01.005
基于译码可靠性的系统Polar码删余方法
Puncturing method for systematic Polar code based on decoding reliability
摘要
Abstract
To study the performance of the punctured systematic Polar code,a puncturing method for the systematic Polar code based on decoding reliability is proposed.Considering different effects of channel noise on the decoding results of different code bits,the decoding reliability of each bit is cal-culated by using the Gaussian approximation method and sorted.The code bits with lower decoding reliability are chosen as the punctured positions to construct the punctured systematic Polar code.The influences of different puncturing methods on the bit error rate (BER)performance are analyzed. The BER performance of the systematic Polar code is compared with that of the non-systematic Polar code.The simulation results show that,with the same puncturing rate,the performance of the Polar code based on the puncturing method with decoding reliability is superior to that based on the random puncturing method.Meanwhile,compared with the non-systematic Polar code under the same condi-tion,the systematic Polar code based on the puncturing method of decoding reliability exhibits better BER performance.关键词
删余/译码可靠性/系统Polar码/高斯近似Key words
puncturing/decoding reliability/systematic Polar code/Gaussian approximation分类
信息技术与安全科学引用本文复制引用
赵生妹,邵珠要,陈汉武..基于译码可靠性的系统Polar码删余方法[J].东南大学学报（自然科学版）,2017,47(1):23-27,5.基金项目
国家自然科学基金资助项目（61271238，61475075）、江苏省研究生培养创新工程资助项目（KYLX16＿0663）． （）
