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首页> 外文期刊>Eurasip Journal on Wireless Communications and Networking >Experimental analysis of PAPR reduction technique using hybrid peak windowing in LTE system
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Experimental analysis of PAPR reduction technique using hybrid peak windowing in LTE system

机译：LTE系统中混合峰窗降低PAPR技术的实验分析

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Orthogonal frequency division multiplexing (OFDM) has the advantages of spectral efficiency in wideband communication systems such as 3GPP long-term evolution (LTE). However, OFDM suffers from a high peak-to-average power ratio (PAPR). Several schemes, such as peak windowing, clipping and filtering, have been proposed in order to reduce the PAPR in OFDM-based systems. However, these schemes reduce the peak signals regardless of the PAPR pattern; thus, while guaranteeing error vector magnitude (EVM) and adjacent channel leakage ratio (ACLR) performances they do not efficiently reduce the PAPR. In this paper, we propose a hybrid peak-windowing scheme that selects the optimum PAPR reduction scheme according to the PAPR pattern, and we evaluate its performance using a real LTE test bed. Our test results show that the proposed scheme outperforms the existing schemes in terms of EVM, ACLR, and power consumption. Keywords PAPR CFR Clipping and filtering Peak windowing Power consumption LTE
机译：正交频分复用（OFDM）在宽带通信系统（例如3GPP长期演进（LTE））中具有频谱效率的优势。但是，OFDM具有较高的峰均功率比（PAPR）。为了减小基于OFDM的系统中的PAPR，已经提出了几种方案，例如峰值窗口，限幅和滤波。然而，这些方案降低了峰值信号，而与PAPR模式无关。因此，在保证误差矢量幅度（EVM）和相邻信道泄漏比（ACLR）性能的同时，它们不能有效地降低PAPR。在本文中，我们提出了一种混合峰窗方案，该方案根据PAPR模式选择最佳的PAPR降低方案，并使用真实的LTE测试台评估其性能。我们的测试结果表明，该方案在EVM，ACLR和功耗方面均优于现有方案。关键字PAPR CFR削波和滤波峰值窗口功耗LTE

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