Peak Regrowth Reduction Based on Segmental Approach for OFDM/OQAM signals

Sandeepkumar Vangala, H. L. Minh, N. Aslam, M. Raza
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引用次数: 0

Abstract

This paper proposes an Overlapped Segmental Deep Clipping (OS-DC) method to suppress the peak regrowth. OS-DC reduces Peak-to-Average Power Ratio (PAPR) in Orthogonal Frequency Division Multiplexing with Offset Quadrature Amplitude Modulation (OFDM/OQAM) signals without the need of multiple iterations. In OS-DC the clipping function is modified to deeply clip the high amplitude peaks and is applied to an OFDM/OQAM transmission system. This achieves up to four times reduction in peak regrowth in comparison to repeated iterative Overlapped Segmental Clipping and Filtering (OS-CF). Furthermore, it is also demonstrated that the proposed method improves signal quality compared to the normal clipping, for the same PAPR.
基于分段方法的OFDM/OQAM信号峰值再生抑制
本文提出了一种抑制峰值再生的重叠分段深度裁剪(OS-DC)方法。OS-DC在不需要多次迭代的情况下降低了正交频分复用(OFDM/OQAM)信号的峰均功率比(PAPR)。在OS-DC中,对剪切函数进行了改进,使其能够深度剪切高幅值峰值,并应用于OFDM/OQAM传输系统。与重复迭代的重叠分段裁剪和滤波(OS-CF)相比,这可以实现峰值再生减少四倍。此外,还证明了在相同的PAPR下,与普通裁剪相比,该方法提高了信号质量。
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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