DocumentCode
961344
Title
Clipping noise mitigation for channel estimation in OFDM systems
Author
Xiao, Yue ; Shaoqian Li ; Lei, Xia ; Tang, Youxi
Author_Institution
Net. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Hefei
Volume
10
Issue
6
fYear
2006
fDate
6/1/2006 12:00:00 AM
Firstpage
474
Lastpage
476
Abstract
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
Keywords
OFDM modulation; channel estimation; frequency-domain analysis; interference suppression; OFDM; channel estimation; clipping noise mitigation; frequency domain; orthogonal frequency division multiplexing system; pilot symbol; Bandwidth; Channel estimation; Chromium; Degradation; Fast Fourier transforms; Filters; Frequency domain analysis; OFDM; Peak to average power ratio; System performance;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2006.1638620
Filename
1638620
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