Analysis of the performance of iterative estimation and cancellation of clipping non-linear distortion in OFDM

被引：0
|
作者：
Lei Xia [1 ]
Zheng Li [1 ]
Tang Youxi [1 ]
Li Shaoqian [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Commun, Chengdu 610054, Sichuan, Peoples R China
来源：
PROCEEDINGS OF FUTURE GENERATION COMMUNICATION AND NETWORKING, WORKSHOP PAPERS, VOL 2 | 2007年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Clipping is usually applied to decrease the high peak-to-average power ratio (PAPR) caused by orthogonal-frequency-division-multiplex (OFDM) with interference. To resolve this problem, an iterative estimation and cancellation of clipping non-linear distortion scheme is proposed. This paper presents that the performance of iterative estimation and cancellation of clipping non-linear distortion is better than that of clipping noise. The method of iterative estimation and cancellation of clipping non-linear distortion can recover the signal before clipping perfectly with the ideal feedback data. However, if receiver only estimate and cancel the clipping noise the signal will still be influenced by the attenuation caused by clipping. Analysis and simulation results prove the conclusion. And it is shown by numerical simulation results that system performance can be improved evidently. When the clipping threshold is 1.2, the performance is improved about 2 dB with only one iterative estimation and cancellation.
引用
收藏
页码：193 / 197
页数：5
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