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arXiv 2603.05752eess.SP
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重新思考下一代信号波形:正交与非正交的整合

Rethinking Next-Generation Signal Waveform: Integration of Orthogonality and Non-Orthogonality

University College London(伦敦大学学院);Technical University of Berlin(柏林工业大学);Tongji University(同济大学);The University of Warwick(华威大学)

Tongyang Xu, Shuangyang Li, Zhongxiang Wei, Gan Zheng, Izzat Darwazeh

AI总结:

本文提出了一种整合正交与非正交的信号波形方法,通过SC-NOFS(2D)实现6G通信的高数据率、低延迟和可持续性需求。

摘要:

随着6G通信的发展,国际电信联盟(ITU)定义的新服务和能力需求日益增加。6G进展的关键在于开发能够满足这些需求并保持与现有标准兼容的信号波形。本文探讨了可持续的物理层波形选项,重点在于一种平衡的方法,即整合非正交与正交以实现 backward compatibility(向后兼容)和 forward innovation(向前创新)。具体而言,我们研究了两种关键信号格式:单载波正交频分复用(SC-OFDM)(1D,2D)和单载波非正交频形变(SC-NOFS)(1D,2D)。这两种都可以使用1D频率和2D时频预编码,提供增强的频率和时间多样性、简化处理以及对延迟-多普勒效应的抗性。SC-NOFS(2D)进一步引入了改进的频谱效率和降低的延迟,使其成为未来6G应用的有力候选者。比较分析表明,SC-NOFS(2D)提供了更广泛的能力范围,特别是那些需要高速率、高移动性、低延迟通信、可持续性和互操作性的需求,使其成为下一代6G通信的多功能解决方案。

英文摘要:

As 6G communications advance, the demand for new services and capabilities, as defined by the international telecommunication union (ITU), is increasing. A crucial aspect of 6G advancement lies in the development of signal waveforms that can meet these demands while maintaining compatibility with existing standards. This paper explores sustainable physical layer waveform options, focusing on a balanced approach that integrates non-orthogonality with orthogonality to achieve both backward compatibility and forward innovation. Specifically, we investigate two key signal formats: single-carrier orthogonal frequency division multiplexing (SC-OFDM) (1D,2D) and single-carrier non-orthogonal frequency shaping (SC-NOFS)(1D,2D). Both can use 1D frequency and 2D time-frequency precoding, offering enhanced frequency and time diversity, simplified processing, and resilience to delay-Doppler effects. SC-NOFS(2D) further introduces advantages such as improved spectral efficiency and reduced latency, making it a strong candidate for future 6G applications. The comparative analysis highlights that SC-NOFS(2D) provides a broader range of capabilities, particularly those requiring high data rate, high mobility, low-latency communication, sustainability, and interoperability, positioning it as a versatile solution for next-generation 6G communication.

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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