{"title":"Hybrid Decoding of Asymmetric Product Codes With Systematic Polar and BCH Codes","authors":"Bin Chen;Wen Yin;Yi Lei;Qin Huang;Xiang Li","doi":"10.1109/LCOMM.2024.3443133","DOIUrl":null,"url":null,"abstract":"Product codes (PCs) are widespread in optical communication systems, especially those that use hard-decision decoding (HDD). Soft-decision decoding (SDD) can bring significant performance benefits to PCs, but the substantial increase in complexity poses challenges for practical applications. In this letter, we propose a novel hybrid decoding scheme for PC consisting of systematic polar code and Bose-Chaudhuri-Hocquenghem (BCH) code, which will be referred as polar-BCH PCs. Utilizing such a special structure, a hybrid soft-and hard-decision decoding (HSHD) algorithm is proposed for PCs, which takes the advantages of both HDD and SDD. Via the iterative decoding, the proposed HSHD algorithm can outperform the traditional BCH-BCH PC by 1.15 dB. In addition, the proposed algorithm can close the gap to the long polar code with the same blocklength within 0.5 dB, while heavily reducing the computational complexity by more than an order of magnitude.","PeriodicalId":13197,"journal":{"name":"IEEE Communications Letters","volume":"28 10","pages":"2223-2227"},"PeriodicalIF":3.7000,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Communications Letters","FirstCategoryId":"94","ListUrlMain":"https://ieeexplore.ieee.org/document/10636029/","RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"TELECOMMUNICATIONS","Score":null,"Total":0}
引用次数: 0
Abstract
Product codes (PCs) are widespread in optical communication systems, especially those that use hard-decision decoding (HDD). Soft-decision decoding (SDD) can bring significant performance benefits to PCs, but the substantial increase in complexity poses challenges for practical applications. In this letter, we propose a novel hybrid decoding scheme for PC consisting of systematic polar code and Bose-Chaudhuri-Hocquenghem (BCH) code, which will be referred as polar-BCH PCs. Utilizing such a special structure, a hybrid soft-and hard-decision decoding (HSHD) algorithm is proposed for PCs, which takes the advantages of both HDD and SDD. Via the iterative decoding, the proposed HSHD algorithm can outperform the traditional BCH-BCH PC by 1.15 dB. In addition, the proposed algorithm can close the gap to the long polar code with the same blocklength within 0.5 dB, while heavily reducing the computational complexity by more than an order of magnitude.
产品代码（PC）广泛应用于光通信系统，尤其是使用硬解码（HDD）的系统。软决策解码（SDD）能为 PC 带来显著的性能优势，但其复杂性的大幅增加给实际应用带来了挑战。在这封信中，我们提出了一种由系统极性编码和 Bose-Chaudhuri-Hocquenghem (BCH) 编码组成的新型 PC 混合解码方案，并将其称为极性-BCH PC。利用这种特殊结构，我们提出了一种针对 PC 的混合软硬决定解码（HSHD）算法，它兼具 HDD 和 SDD 的优点。通过迭代解码，所提出的 HSHD 算法比传统的 BCH-BCH PC 性能高出 1.15 dB。此外，所提出的算法还能在 0.5 dB 的范围内缩小与具有相同块长的长极码的差距，同时将计算复杂度大幅降低一个数量级以上。
期刊介绍：
The IEEE Communications Letters publishes short papers in a rapid publication cycle on advances in the state-of-the-art of communication over different media and channels including wire, underground, waveguide, optical fiber, and storage channels. Both theoretical contributions (including new techniques, concepts, and analyses) and practical contributions (including system experiments and prototypes, and new applications) are encouraged. This journal focuses on the physical layer and the link layer of communication systems.
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