Clipping noise mitigation for channel estimation in OFDM systems

被引：8
|
作者：
Xiao, Yue [1 ]
Li, Shaoqian [1 ]
Lei, Xia [1 ]
Tang, Youxi [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Commun, Hefei, Peoples R China
来源：
IEEE COMMUNICATIONS LETTERS | 2006年 / 10卷 / 06期
关键词：
OFDM; PAPR; clipping; channel estimation;
D O I：
10.1109/LCOMM.2006.06019
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
This letter provides a new technique to mitigate the clipping noise on pilot symbols in clipped and pilot-aided orthogonal frequency division multiplexing (OFDM) systems. The basic principle is to directly filter the clipping noise on the positions of pilots in the frequency domain before the insertion of pilots. Simulation results show that the new technique can effectively improve channel estimation and system performance.
引用
收藏
页码：474 / 476
页数：3
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