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
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发表时间:
2014-03
影响因子:
1.6
通讯作者:
Zhang Hailin
中科院分区:
文献类型:
--
作者:
Hu Meixia;Li Yongzhao;Liu Yi;Zhang Hailin
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.
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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
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
影响因子:
4.5
作者:
S. Jeng;Jia-Ming Chen
通讯作者:
S. Jeng;Jia-Ming Chen
影响因子:
4.5
作者:
Jiang, Tao;Wu, Yiyan
通讯作者:
Wu, Yiyan