Lee Byung Moo, Rim You Seung, Noh Wonjong
School of Intelligent Mechatronics Engineering, Sejong University, Seoul 05006, Korea.
Samsung Electronics Co., Ltd., Suwon 16677, Korea.
PLoS One. 2017 Oct 12;12(10):e0185965. doi: 10.1371/journal.pone.0185965. eCollection 2017.
We propose an energy efficient combination design for OFDM systems based on selected mapping (SLM) and clipping peak-to-average power ratio (PAPR) reduction techniques, and show the related energy efficiency (EE) performance analysis. The combination of two different PAPR reduction techniques can provide a significant benefit in increasing EE, because it can take advantages of both techniques. For the combination, we choose the clipping and SLM techniques, since the former technique is quite simple and effective, and the latter technique does not cause any signal distortion. We provide the structure and the systematic operating method, and show the various analyzes to derive the EE gain based on the combined technique. Our analysis show that the combined technique increases the EE by 69% compared to no PAPR reduction, and by 19.34% compared to only using SLM technique.
我们提出了一种基于选择映射（SLM）和削波峰均功率比（PAPR）降低技术的正交频分复用（OFDM）系统节能组合设计，并展示了相关的能量效率（EE）性能分析。两种不同的PAPR降低技术相结合，在提高EE方面可带来显著益处，因为它能利用两种技术的优势。对于这种组合，我们选择削波和SLM技术，因为前一种技术非常简单有效，而后一种技术不会引起任何信号失真。我们给出了该组合的结构和系统操作方法，并展示了基于该组合技术推导EE增益的各种分析。我们的分析表明，与不进行PAPR降低相比，该组合技术使EE提高了69%，与仅使用SLM技术相比提高了19.34%。
