移动通信2024，Vol.48Issue(5)：55-59,93,6.DOI:10.3969/j.issn.1006-1010.20240506-0001
面向6G的循环码低复杂度软判决译码技术
Low-Complexity Soft-Decision Decoding Techniques for Cyclic Codes in 6G Networks
摘要
Abstract
Ultra-reliable low-latency communication is a pivotal requirement for future 6G communication systems,thus placing high-performance flexible coding for short-to-medium block lengths at the forefront of current research.Among various channel coding schemes,cyclic codes are extensively studied due to their superior Hamming distances,low complexity of encoding and decoding,and flexibility in offering various rates and lengths.However,the potential of cyclic codes is often underutilized due to the absence of efficient soft decision decoding mechanisms.This paper introduces a novel soft decision decoding approach for cyclic codes based on derivative decomposition.The method decomposes cyclic codes into different derivative directions,utilizing the decoding outcomes of derivative codes to generate soft outputs,thereby facilitating an efficient soft decision decoding scheme.The decoding algorithm for cyclic codes is optimized in terms of decoding strategies and selection of derivative directions.By refining the decoding mechanisms of derivative codes,the complexity of decoding is significantly reduced in high signal-to-noise ratio environments.Additionally,a newly introduced derivative direction filtering mechanism further refines the voting outcomes,effectively enhancing the decoding performance of derivative codes.Simulation results indicate that the improved derivative code decoding for a cyclic code of length 256 can reduce computational complexity by up to 60％while achieving a performance gain of approximately 0.2 dB.关键词
6G/循环码/导数码译码Key words
6G/cyclic codes/derivative decoding分类
信息技术与安全科学引用本文复制引用
李阳明,姜明..面向6G的循环码低复杂度软判决译码技术[J].移动通信,2024,48(5):55-59,93,6.基金项目
国家自然科学基金资助项目"面向6G的中短码长弹性编码理论与方法"(62331002) （62331002）
