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arXiv 2405.20107eess.SP
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关于群时延色散对未来太赫兹无线系统影响的视角

A Perspective on the Impact of Group Delay Dispersion in Future Terahertz Wireless Systems

Karl Strecker, Sabit Ekin, John F. O'Hara

AI总结:

本文探讨了群时延色散(GDD)对未来6G太赫兹无线系统的独特影响,分析了GDD来源、缓解策略受限性及利用GDD增强系统的益处,并提出光子GDD控制器件可优化性能。

摘要:

本文讨论了管理群时延色散(GDD)的挑战与机遇,及其与利用太赫兹频波的第六代(6G)无线通信系统性能标准的关系。描述了6G系统对GDD的独特敏感性,并定量描述了GDD的来源,包括多径、粗糙表面散射、智能反射表面以及大气传播。文中展示了一个实验案例研究,证实了先前量化大气GDD影响的模型。提出了几种GDD操控策略,说明了它们在6G环境下的受限有效性。相反,也讨论了利用GDD增强6G系统的一些益处,如提高安全性和简化硬件。最后,提供了使用光子GDD控制器件的视角,揭示了可能减轻现有均衡方案负担的定量益处。文章认为,GDD将独特且显著地影响某些6G系统,但对其的仔细考量以及包括光子器件在内的新缓解策略,将有助于优化系统性能。结论提供了指导该领域未来研究的视角。

英文摘要:

This article discusses the challenges and opportunities of managing group delay dispersion (GDD) and its relation to the performance standards of future sixth-generation (6G) wireless communication systems utilizing terahertz frequency waves. The unique susceptibilities of 6G systems to GDD are described, along with a quantitative description of the sources of GDD, including multipath, rough surface scattering, intelligent reflecting surfaces, and propagation through the atmosphere. An experimental case-study is presented that confirms previous models quantifying the impact of atmospheric GDD. Several GDD manipulation strategies are presented illustrating their hindered effectiveness in the 6G context. Conversely, some benefits of leveraging GDD to enhance 6G systems, such as improved security and simplified hardware, are also discussed. Finally, a perspective on using photonic GDD control devices is provided, revealing quantitative benefits that may unburden existing equalization schemes. The article argues that GDD will uniquely and significantly impact some 6G systems, but that its careful consideration along with new mitigation strategies, including photonic devices, will help optimize system performance. The conclusion provides a perspective to guide future research in this area.

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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