电讯技术2024，Vol.64Issue(1)：126-131,6.DOI:10.20079/j.issn.1001-893x.220814001
动态扰动辅助的串行抵消双比特翻转Polar译码算法
Decoding Algorithms for Polar Codes Based on Dynamic Perturbation-aided Successive Cancellation Flip with 2 Bits
摘要
Abstract
To solve the performance limitation problem of the Successive Cancellation Flip(SCF)with single bit decoding algorithm,a Successive Cancellation Flip with 2 Bits(SCF2)decoding algorithm is proposed for polar code.Since the initial variance of the original Successive Cancellation Perturbation(SCP)algorithm is fixed,an improved SCP algorithm is presented based on a new designed perturbation variance strategy,in which the variance can vary with the code length and code rate.Furthermore,according to the flipping and permutation mechanism,a Dynamic Perturbation-aided SCF2(DPA-SCF2)decoding algorithm is presented and the decoding complexity and performance are analyzed.Simulation results show that,compared with the Cyclic Redundancy Check(CRC)aided Successive Cancellation List(CA-SCL)decoding algorithm,the proposed DPA-SCF2 algorithm can achieve performance gain about 0.5 dB.关键词
Polar码/串行抵消翻转(SCF)译码/串行抵消扰动(SCP)译码/动态扰动Key words
polar code/successive cancellation flip(SCF)decoding/successive cancellation perturbation(SCP)decoding/dynamic perturbation分类
信息技术与安全科学引用本文复制引用
曾俏丽,陈海强,周泉,刘远博,孙友明,黎相成..动态扰动辅助的串行抵消双比特翻转Polar译码算法[J].电讯技术,2024,64(1):126-131,6.基金项目
国家自然科学基金资助项目(62261003,61961004) （62261003,61961004）
广西重点研发计划(2021AB05081) （2021AB05081）
