Peak to average power ratio reduction of ZT DFT-S-OFDM signals using hybrid improved monarch butterfly optimization-PTS scheme with TR-clipping scheme,International Journal of Communication Systems

当前位置： X-MOL 学术 › Int. J. Commun. Syst. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Peak to average power ratio reduction of ZT DFT-S-OFDM signals using hybrid improved monarch butterfly optimization-PTS scheme with TR-clipping scheme
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2021-06-13 , DOI: 10.1002/dac.4858
Pathuri Lavanya ₁ , Penke Satyanarayana ₂ , Mohammad Mohatram ₃

Affiliation

Current research on zero-tail discrete Fourier transform spread OFDM, an add on to conventional discrete Fourier transform DFT-OFDM modulation without cyclic prefix (CP). Its low power tail is configured for coping up with channel's delay spread. Advantageous feature of ZT DFT-S-OFDM has drawn researchers for deploying it as a potential waveform candidate to fifth generation (5G). However, the intrinsic shortcoming of high peak to average power ratio (PAPR) should be alleviated. In order to improve that work, we propose a hybrid PAPR scheme that implements optimized partial transmit sequence (PTS) with tone reservation (TR) with clipping technique. Its earlier work stresses for reducing PTS scheme's computational complexity with enhanced version of monarch butterfly optimization (MBO) for PAPR reduction in ZT DFT-S-OFDM system. The proposed model reduced the correlation among the candidate signals. In this paper, we further reduce PAPR by deploying TR clipping pair, which reduces the influence of clipping noise and decreases ZT DFT-S-OFDM signal's PAPR at same time. The proposed hybrid technique produces excellent PAPR reduction while improving receiver sensitivity and effective throughout. The performance comparison is done using the parameters like PAPR and BER to confirm that this introduced design exceeds current waveforms designs with more economical design structure.

中文翻译：

使用混合改进君主蝶形优化-PTS 方案和 TR 限幅方案降低 ZT DFT-S-OFDM 信号的峰均功率比

当前对零尾离散傅里叶变换扩展 OFDM 的研究，这是对传统离散傅里叶变换 DFT-OFDM 调制的补充，没有循环前缀 (CP)。其低功率尾部配置用于应对信道的延迟扩展。ZT DFT-S-OFDM 的优势特性吸引了研究人员将其部署为第五代 (5G) 的潜在候选波形。然而，高峰均功率比（PAPR）的固有缺点应该得到缓解。为了改进这项工作，我们提出了一种混合 PAPR 方案，该方案使用削波技术实现优化的部分传输序列 (PTS) 和音调保留 (TR)。其早期的工作强调通过增强版君主蝴蝶优化 (MBO) 降低 PTS 方案的计算复杂度，以降低 ZT DFT-S-OFDM 系统中的 PAPR。所提出的模型降低了候选信号之间的相关性。在本文中，我们通过部署TR限幅对进一步降低了PAPR，减少了限幅噪声的影响，同时降低了ZT DFT-S-OFDM信号的PAPR。所提出的混合技术产生出色的 PAPR 降低，同时提高接收器灵敏度和有效吞吐量。性能比较是使用 PAPR 和 BER 等参数进行的，以确认这种引入的设计超过了具有更经济设计结构的当前波形设计。所提出的混合技术产生出色的 PAPR 降低，同时提高接收器灵敏度和有效吞吐量。性能比较是使用 PAPR 和 BER 等参数进行的，以确认这种引入的设计超过了具有更经济设计结构的当前波形设计。所提出的混合技术产生出色的 PAPR 降低，同时提高接收器灵敏度和有效吞吐量。性能比较是使用 PAPR 和 BER 等参数进行的，以确认这种引入的设计超过了具有更经济设计结构的当前波形设计。

更新日期：2021-07-06

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11