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arXiv 2302.14224eess.SPcs.NI
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高迁移率场景中各种波形的概述和性能分析

Overview and Performance Analysis of Various Waveforms in High Mobility Scenarios

Yu Zhou, Haoran Yin, Jiaojiao Xiong, Shiyu Song, Jiajun Zhu, Jinming Du, Haibo Chen, Yanqun Tang

摘要:

在下一代无线通信系统(超过5G/6 G)的高移动性场景中,由于大的多普勒频移导致子载波之间的正交性的损失,正交频分复用(OFDM)的性能急剧恶化。各种新兴的波形已经提出了快速时变信道具有良好的效果。在本文中,我们从调制域的角度对这些波形进行了分类,并建立了一个统一的框架,以提供全面的系统结构比较。然后分析了在双选择性信道中各波形的误比特率性能。通过对它们的复杂度和与OFDM系统兼容性的讨论,给出了候选波形的建议。

英文摘要:

In the high-mobility scenarios of next-generation wireless communication systems (beyond 5G/6G), the performance of orthogonal frequency division multiplexing (OFDM) deteriorates drastically due to the loss of orthogonality between the subcarriers caused by large Doppler frequency shifts. Various emerging waveforms have been proposed for fast time-varying channels with excellent results. In this paper, we classify these waveforms from the perspective of their modulation domain and establish a unified framework to provide a comprehensive system structure comparison. Then we analyze bit error rate (BER) performance of each waveform in doubly selective channels. Through the discussions on their complexity and compatibility with OFDM systems, we finally give the candidate waveform suggestions.

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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