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arXiv 2310.06604eess.SPcs.ITmath.IT
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近场与远场模型失配:对6G通信、定位与感知的影响

Near and Far Field Model Mismatch: Implications on 6G Communications, Localization, and Sensing

Ahmed Elzanaty, Jiuyu Liu, Anna Guerra, Francesco Guidi, Yi Ma, Rahim Tafazolli

AI总结:

本文研究6G高频电大阵列下近场与远场传播模型失配对通信、定位和感知性能的影响,并通过数值分析为模型精度与性能权衡提供指导。

摘要:

即将到来的6G技术由于采用高频和电大尺寸天线阵列,预计将工作在近场(NF)辐射条件下。尽管已有若干研究探讨了这一可能性,但值得注意的是,NF模型会带来更高的复杂度,而这种复杂度在性能提升方面的合理性并不总是显而易见。本文研究NF模型与远场(FF)模型之间的失配对通信、定位和感知系统的影响。这种差异可能导致感知与定位精度以及通信效率等性能指标下降。通过探究NF与FF模型失配的效应,本研究试图围绕系统设计者面临的挑战展开,为模型精度与可实现性能之间的平衡提供洞见。最后,我们进行了数值性能分析,以验证NF与FF模型失配所带来的影响。

英文摘要:

The upcoming 6G technology is expected to operate in near-field (NF) radiating conditions thanks to high-frequency and electrically large antenna arrays. Although several studies have already addressed this possibility, it is worth noting that NF models introduce higher complexity, the justification for which is not always evident in terms of performance improvements. This article investigates the implications of the mismatch between NF and far-field (FF) models concerning communication, localization, and sensing systems. Such disparity can lead to a degradation of performance metrics such as sensing and localization accuracy and communication efficiency. By exploring the effects of mismatches between NF and FF models, this study seeks to revolve around the challenges faced by system designers, offering insights about the balance between model accuracy and achievable performance. Finally, we conduct a numerical performance analysis to verify the impact of the mismatch between NF and FF models.

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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