Rate-Compatible Length-Scalable Quasi-Cyclic Spatially-Coupled LDPC Codes

IF 3.2 1区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Broadcasting Pub Date : 2024-12-12 DOI:10.1109/TBC.2024.3511916

Zhitong He;Kewu Peng;Jian Song

引用次数: 0

Abstract

The capability of QC-SC-LDPC codes to be employed in broadcasting systems has been studied in previous research. However, the implementation-oriented features such as rate-compatibility and length-scalability for QC-SC-LDPC codes have not been well studied yet. In this paper, we first propose a new implementation-oriented structure of QC-SC-LDPC codes for broadcasting systems, with support for rate-compatibility and length-scalability. Then, the three-dimensional (3D-) grid-based (G-) progressive edge growth and lifting (PEGL) method is proposed to construct QC-SC-LDPC codes with that structure, which can achieve desirable performance across different code rates and code lengths within the given design complexity. Finally, a family of rate-compatible length-scalable QC-SC-LDPC codes are constructed via the 3D-G-PEGL method, and simulation results demonstrate the effectiveness of that method. Furthermore, the scaling behaviors of QC-SC-LDPC codes are observed from the provided simulation results.

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速率兼容的长度可伸缩准循环空间耦合LDPC码

在以往的研究中，对QC-SC-LDPC码在广播系统中的应用能力进行了研究。然而，QC-SC-LDPC码的码率兼容性和码长可扩展性等面向实现的特性还没有得到很好的研究。在本文中，我们首先提出了一种新的面向实现的广播系统QC-SC-LDPC码结构，支持速率兼容性和长度可扩展性。然后，提出了基于三维（3D-）网格（G-）渐进式边缘生长和提升（PEGL）方法，利用该结构构建QC-SC-LDPC代码，在给定的设计复杂度下，在不同码率和码长下都能获得理想的性能。最后，利用3D-G-PEGL方法构建了一组速率兼容的长度可扩展QC-SC-LDPC码，仿真结果验证了该方法的有效性。此外，通过仿真结果观察了QC-SC-LDPC码的标度行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Broadcasting 工程技术-电信学

CiteScore

9.40

自引率

31.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Society’s Field of Interest is “Devices, equipment, techniques and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.” In addition to this formal FOI statement, which is used to provide guidance to the Publications Committee in the selection of content, the AdCom has further resolved that “broadcast systems includes all aspects of transmission, propagation, and reception.”