Parameter-adjustable piecewise exponential companding scheme for peak-to-average power ratio reduction in orthogonal frequency division multiplexing systems

Parameter-adjustable piecewise exponential companding scheme for peak-to-average power ratio reduction in orthogonal frequency division multiplexing systems
复制标题

正交频分复用系统中用于降低峰均功率比的参数可调分段指数压扩方案

DOI:
10.1049/iet-com.2013.0226
复制
发表时间:
2014-03
期刊:
影响因子:
1.6
通讯作者:
Zhang Hailin
Zhang Hailin
中科院分区:
计算机科学4区
文献类型:
--
作者:
Hu Meixia;Li Yongzhao;Liu Yi;Zhang Hailin

文献摘要

参考文献

被引文献

相似文献

高峰均功率比(PAPR)是正交频分复用(OFDM)系统的一个主要缺点。提出了一种新的压缩方案,通过将压缩信号的统计量转化为参数可调的指数分布来降低PAPR。该方案在减小PAPR的同时减小了压缩失真,显著提高了误码率(BER)性能。此外,通过引入拐点和变换参数,该方案可以在PAPR降低方面提供更大的灵活性,从而在PAPR降低、误码率和功率谱密度(PSD)性能之间实现更好的权衡。通过理论分析,导出了参数选择准则。仿真结果表明,该方案可以显著提高误码率和PSD性能,同时有效降低PAPR。
High peak-to-average power ratio (PAPR) is a major drawback of orthogonal frequency division multiplexing (OFDM) systems. A new companding scheme is proposed to reduce PAPR by transforming the statistics of the companded signal into exponential distribution with adjustable parameters. The proposed scheme can enhance the bit error rate (BER) performance significantly by minimising the companding distortion in the reduction of PAPR. Moreover, with the introduction of an inflexion point and transform parameters, the proposed scheme can offer more flexibility in the PAPR reduction, and therefore achieves a better tradeoff among the PAPR reduction, BER and power spectral density (PSD) performance. With a theoretical analysis presented, the parameter selection criteria are derived. Simulation results verify that the proposed scheme can significantly improve the BER and PSD performance while reducing PAPR effectively.
DOI: 10.1109/twc.2007.05802
发表时间: 2007-06
影响因子: 10.4
作者:
Tao Jiang;Weidong Xiang;P. Richardson;Daiming Qu;Guangxi Zhu
通讯作者: Tao Jiang;Weidong Xiang;P. Richardson;Daiming Qu;Guangxi Zhu
DOI: --
发表时间: 1999
期刊: --
影响因子: --
作者:
José Tellado-Mourelo
通讯作者: José Tellado-Mourelo
降低 OFDM 信号 PAPR 的高效非线性压扩变换
DOI: 10.1109/tbc.2012.2198976
发表时间: 2012-06
期刊: IEEE trans. on Broadcasting
影响因子: --
作者:
王勇
通讯作者: 王勇
DOI: 10.1109/tbc.2011.2112237
发表时间: 2011-02
影响因子: 4.5
作者:
S. Jeng;Jia-Ming Chen
通讯作者: S. Jeng;Jia-Ming Chen
DOI: 10.1109/tbc.2008.915770
发表时间: 2008-06-01
影响因子: 4.5
作者:
Jiang, Tao;Wu, Yiyan
通讯作者: Wu, Yiyan