DocumentCode
961244
Title
Subcarrier weighting: a method for sidelobe suppression in OFDM systems
Author
Cosovic, Ivan ; Brandes, Sinja ; Schnell, Michael
Author_Institution
DoCoMo Commun. Lab. Europe, Munich
Volume
10
Issue
6
fYear
2006
fDate
6/1/2006 12:00:00 AM
Firstpage
444
Lastpage
446
Abstract
In this letter, a method for sidelobe suppression in OFDM systems is proposed and investigated. The proposed method is based on the multiplication of the used subcarriers with subcarrier weights. The subcarrier weights are determined in such a way that the sidelobes of the transmission signal are minimized according to an optimization algorithm which allows several optimization constraints. As a result, sidelobe suppression by subcarrier weighting reduces OFDM sidelobes by more than 10 dB in the average without requiring the transmission of any side information
Keywords
OFDM modulation; interference suppression; minimisation; radiocommunication; OFDM system; minimisation; optimization algorithm; orthogonal frequency division multiplexing; sidelobe suppression; subcarrier weighting; Bandwidth; Constraint optimization; Frequency division multiplexing; Helium; OFDM modulation; Phase shift keying; Phased arrays; Quadrature amplitude modulation; Throughput; Wireless communication;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2006.1638610
Filename
1638610
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