等频谱效率条件下FTN和Nyquist信令的比较

2022 International Conference on Electrical Engineering and Photonics (EExPolytech) Pub Date : 2022-10-20 DOI:10.1109/EExPolytech56308.2022.9950787

Tatyana Antsiferova, A. Ovsyannikova, A. M. Chudnov, Nguyen Dac Cu

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引用次数: 6

摘要

提高根余弦(RRC)脉冲可以减少占用的频宽，消除接收机的码间干扰(ISI)。RRC脉冲的缺点是峰值平均功率比(PAPR)高。降低PAPR的方法之一是采用比奈奎斯特(FTN)更快的信令。本文比较了在相同频谱效率条件下FTN和Nyquist信号的PAPR和能量效率。通过仿真建模表明，在一定的滚降因子下，基于RRC脉冲的FTN信号在PAPR中能提供约1db的增益。在使用决策反馈算法时，与使用QAM-32的Nyquist信号相比，使用QAM-16的FTN信号也有可能获得误码率(BER)的增益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Comparison of FTN and Nyquist Signaling in Conditions of Equal Spectral Efficiency

Root raised cosine (RRC) pulses can provide occupied frequency bandwidth reduction and intersymbol interference (ISI) elimination at receiver. The drawback of RRC pulses is high peak-to-average power ratio (PAPR). One of the ways to reduce the PAPR is to apply Faster-than-Nyquist (FTN) signaling. In this paper we compare PAPR and energy efficiency of FTN and Nyquist signals under conditions of the same spectral efficiency. With the help of simulation modeling it is shown that for certain values of roll-off factor FTN signals based on RRC pulses can provide about 1 dB gain in PAPR. It is also possible to achieve the gain in bit error rate (BER) for the case of FTN with QAM-16 compared to Nyquist signals with QAM-32 when decision feedback algorithm is used.

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2022 International Conference on Electrical Engineering and Photonics (EExPolytech)

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