基于排序分组码本的纠错译码优化算法  

An optimized error-correcting decoding based on ordered group codebook

作　　者：薛晓娜 周志刚 倪建功 林叶江 裴豆 Xue Xiaona;Zhou Zhigang;Ni Jiangong;Lin Yejiang;Pei Dou(College of Electronics and Information,Hangzhou Dianzi University,Hangzhou 310000,China)

机构地区：[1]杭州电子科技大学电子与信息学院,浙江杭州310000

出　　处：《电子技术应用》2024年第6期47-51,共5页Application of Electronic Technique

摘　　要：针对基于猜测随机加性噪声的通用纠错译码算法中码本容量大、译码速度慢的问题,提出一种基于排序分组码本的纠错译码优化算法。对待译码序列分段,按照信息位码重大小对各码段进行排序,再按照码重值对码段进行分组,产生每组的码本,以组的形式进行译码。经仿真验证表明,优化算法译码速度相比于噪声猜测译码算法提升了一倍,误码性能与极大似然译码算法性能基本一致,验证了算法有效性。The Guessing Random Additive Noise Decoding with Ordered Group Codebook(OGC-GRAND)is proposed to solve the problems of large codebook capacity and slow decoding speed in GRAND.The decoding process can be executed by segmenting the decoding sequence,sorting the code segments according to the code weight of information bits,grouping the code segments according to the code weight value,and generating a codebook for each group.The simulation results show that the decoding speed of the algorithm is twice as fast as that of GRAND,and the bit error rate is the same as the Maximum Likelihood Decoding(MLD),which verifies the effectiveness of the algorithm.

关 键 词：信道译码 通用译码 排序分组 码本 

分 类 号：TN919.32[电子电信—通信与信息系统]