A Heterogeneous and Reconfigurable Decoder for the IEEE 1901 Standard

IF 5.2 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Circuits and Systems I: Regular Papers Pub Date : 2024-08-12 DOI:10.1109/TCSI.2024.3439338

Yuxing Chen;Zhongfeng Wang

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引用次数: 0

Abstract

The IEEE 1901 standard plays a crucial role in the extensive fields of smart grids, electric vehicles, and the Internet of Things. The forward error correction (FEC) codes specified in this standard include low-density parity-check convolutional codes (LDPC-CCs), Reed-Solomon (RS) codes, and RS convolutional concatenated (RSCC) codes. This work proposes a low-complexity decoder fully compliant with the standard. First, a heterogeneous scheme is introduced to LDPC-CC decoding. The new scheme assigns different data formats among processing elements (PEs), which reduces the overall storage size and enables a customized datapath down to the PE level. Then, to efficiently support diverse FEC demands in the standard, a reconfigurable architecture is thoroughly explored from both memory and datapath aspects. Leveraging these techniques, the first decoder compatible with the IEEE 1901 standard is developed and implemented with 55nm technology. Implementation results demonstrate that the proposed decoder satisfies the standard’s requirements while exhibiting low hardware complexity.

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用于 IEEE 1901 标准的异构和可重构解码器

IEEE 1901 标准在智能电网、电动汽车和物联网等广泛领域发挥着至关重要的作用。该标准规定的前向纠错 (FEC) 代码包括低密度奇偶校验卷积码 (LDPC-CC)、里德-所罗门 (RS) 码和 RS 卷积码 (RSCC)。本研究提出了一种完全符合该标准的低复杂度解码器。首先，为 LDPC-CC 解码引入了一种异构方案。新方案在处理单元（PE）之间分配不同的数据格式，从而减小了整体存储空间，并实现了低至处理单元级的定制数据路径。然后，为了有效支持标准中的各种 FEC 需求，从存储器和数据路径两方面对可重构架构进行了深入探讨。利用这些技术，开发出了首个与 IEEE 1901 标准兼容的解码器，并采用 55 纳米技术加以实现。实现结果表明，所提出的解码器在满足标准要求的同时，还表现出较低的硬件复杂性。

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 Circuits and Systems I: Regular Papers 工程技术-工程：电子与电气

CiteScore

9.80

自引率

11.80%

发文量

441

审稿时长

2 months

期刊介绍： TCAS I publishes regular papers in the field specified by the theory, analysis, design, and practical implementations of circuits, and the application of circuit techniques to systems and to signal processing. Included is the whole spectrum from basic scientific theory to industrial applications. The field of interest covered includes: - Circuits: Analog, Digital and Mixed Signal Circuits and Systems - Nonlinear Circuits and Systems, Integrated Sensors, MEMS and Systems on Chip, Nanoscale Circuits and Systems, Optoelectronic - Circuits and Systems, Power Electronics and Systems - Software for Analog-and-Logic Circuits and Systems - Control aspects of Circuits and Systems.