电讯技术2016，Vol.56Issue(8)：839-843,5.DOI:10.3969/j.issn.1001-893x.2016.08.002
系统极化码的置信传播译码性能分析
Performance Analysis of Systematic Polar Codes with Belief Propagation Algorithm
摘要
Abstract
Belief propagation( BP) algorithm can generate soft information for systematic polar codes( SPC) to make decoding decisions and the soft information also can be used as extrinsic information in turbo deco-ding. This paper first provides a detailed description of BP algorithm based on the structure of channel po-larization. Then,it introduces two decision methods,one of which is by exploiting the soft information while the other one is by using polar encoding. The decoding performance under these two methods are compared by simulation,and the simulation results demonstrate that a better bit error rate( BER) performance can be obtained if the soft information is used,while the frame error rate( FER) performance is slightly improved as well in high signal-to-noise ratio( SNR) regime.关键词
系统极化码/级联码/置信传播算法/软信息判决/译码性能Key words
systematic polar codes/concatenated codes/belief propagation algorithm/soft decision/deco-ding performance分类
信息技术与安全科学引用本文复制引用
陈国泰,张朝阳,张亮,陈平平..系统极化码的置信传播译码性能分析[J].电讯技术,2016,56(8):839-843,5.基金项目
国家重点基础研究发展计划(973计划)项目(2012CB316104) （973计划）
国家高技术研究发展计划(863计划)项目(2014AA01A702) （863计划）
国家自然科学基金资助项目(61371094,61401391,61401099) （61371094,61401391,61401099）
福建省教育厅中青年教育科研项目(JA12350,JA14339) Foundation Item:The National Basic Research Program of China(973 Program)(2012CB316104) （JA12350,JA14339）
The National High-tech R&D Program of China(863 Program)(2014AA01A702) （863 Program）
The National Natural Science Foundation of China(No.61371094,61401391,61401099) （No.61371094,61401391,61401099）
The Research Fund of Education Department of Fujian Province(JA12350,JA14339) （JA12350,JA14339）
