Subcarrier weighting: A method for sidelobe suppression in OFDM systems

被引：169
|
作者：
Cosovic, Ivan [1 ]
Brandes, Sinja
Schnell, Michael
机构：
[1] DoCoMo Commun Lab Europe GmbH, D-80687 Munich, Germany
[2] DLR, Berlin, Germany
[3] German Aerosp Ctr DLR, Inst Commun & Navigat, D-82234 Wessling, Germany
来源：
IEEE COMMUNICATIONS LETTERS | 2006年 / 10卷 / 06期
关键词：
orthogonal frequency-division multiplexing (OFDM); sidelobe suppression;
D O I：
10.1109/LCOMM.2006.1638610
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
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 M dB in the average without requiring the transmission of any side information.
引用
收藏
页码：444 / 446
页数：3
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