微型电脑应用2017，Vol.33Issue(7)：62-64,72,4.
一种多元极化码速率分配的低复杂度方法
Methods for Enhancing Successive Cancellation Decoding of Polar Codes
袁辽 1倪卫明1
作者信息
- 1. 复旦大学信息科学与工程学院,上海200433
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摘要
Abstract
In this paper,we study methods to enhance successive cancellation decoding of polar codes.We propose two improved algorithms,which are two-path decision delay decoding and variable path decision delay decoding with threshold.Conventional successive cancellation decoding is greedy algorithm in code tree,which means that successive cancellation decoding can't correct errors from the former nodes.In this paper,the decision delay decoding is used to provide opportunity to correct previous error for the current node.The proposed two-path and variable path decision delay decoding can improve the decoding performance by increasing the computing nodes and increasing the storage space.The simulation results show that compared to successive cancellation decoding,the two-path decision delay decoding has 1.1dB gain on decoding performance.In addition,variable path decision delay decoding has more gain.关键词
多元极化码/块错误概率/码速率分配/线性优化算法Key words
Polar multi-code/Successive cancellation decoding/Decision delay decoding/Two-path decision delay decoding分类
信息技术与安全科学引用本文复制引用
袁辽,倪卫明..一种多元极化码速率分配的低复杂度方法[J].微型电脑应用,2017,33(7):62-64,72,4.
