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arXiv 2510.03069eess.SPcs.AI
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面向通信的神经极化解码器研究

A Study of Neural Polar Decoders for Communication

Ben-Gurion University of the Negev(内盖夫本-古里安大学);Duke University(杜克大学)

Rom Hirsch, Ziv Aharoni, Henry D. Pfister, Haim H. Permuter

AI总结:

本文将神经极化解码器扩展到真实OFDM与单载波通信系统,支持任意码长、高阶调制和多信道条件,实验显示其在5G信道上优于标准5G极化解码器。

摘要:

本文针对端到端通信系统调整并分析了神经极化解码器(Neural Polar Decoders,NPD)。尽管先前工作已证明NPD在合成信道上的有效性,本研究将NPD扩展至真实通信系统。NPD被调整用于完整的OFDM和单载波通信系统。为满足实际系统需求,NPD经过扩展,可通过速率匹配支持任意码长,支持高阶调制,并在多种信道条件下保持鲁棒性。NPD直接在具有记忆的信道上运行,利用其结构实现更高数据速率,且无需导频和循环前缀。尽管NPD的计算复杂度高于标准5G极化解码器,但其神经网络架构能够高效表示信道统计信息,从而产生适合实际系统的可控复杂度。在5G信道上的实验结果表明,NPD在BER、BLER和吞吐量方面始终优于5G极化解码器。这些提升在低速率和短块配置下尤为显著,而此类配置在5G控制信道中十分普遍。此外,应用于单载波系统的NPD可提供与OFDM相当的性能,并具有更低的PAPR,从而能够在5G信道上实现有效的单载波传输。这些结果使NPD成为一种高性能、无导频且鲁棒的解码方案。

英文摘要:

In this paper, we adapt and analyze Neural Polar Decoders (NPDs) for end-to-end communication systems. While prior work demonstrated the effectiveness of NPDs on synthetic channels, this study extends the NPD to real-world communication systems. The NPD was adapted to complete OFDM and single-carrier communication systems. To satisfy practical system requirements, the NPD is extended to support any code length via rate matching, higher-order modulations, and robustness across diverse channel conditions. The NPD operates directly on channels with memory, exploiting their structure to achieve higher data rates without requiring pilots and a cyclic prefix. Although NPD entails higher computational complexity than the standard 5G polar decoder, its neural network architecture enables an efficient representation of channel statistics, resulting in manageable complexity suitable for practical systems. Experimental results over 5G channels demonstrate that the NPD consistently outperforms the 5G polar decoder in terms of BER, BLER, and throughput. These improvements are particularly significant for low-rate and short-block configurations, which are prevalent in 5G control channels. Furthermore, NPDs applied to single-carrier systems offer performance comparable to OFDM with lower PAPR, enabling effective single-carrier transmission over 5G channels. These results position the NPD as a high-performance, pilotless, and robust decoding solution.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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