Free subcarrier optimization for peak-to-average power ratio minimization in OFDM systems

被引：0

作者：

Liu, Qijia ^{[1
]}

Baxley, Robert J. ^{[1
]}

Zhou, G. Tong ^{[1
]}

机构：

[1] Georgia Tech Res Inst, Sch Elect & Comp Engn, Atlanta, GA 30332 USA

来源：

2008 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-12 | 2008年

关键词：

orthogonal frequency division multiplexing (OFDM); peak-to-average power ratio (PAR); signal-to-noise-and-distortion ratio (SNDR);

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Peak-to-average power ratio (PAR) reduction techniques are often employed to increase the power efficiency of orthogonal frequency division multiplexing (OFDM) systems. A recently proposed PAR optimization method demonstrates how the PAR can be minimized when free subcarriers and a certain distortion allowance on the error vector magnitude (EVM) are. available. In this paper, we derive the lower bound on the capacity for such a system and investigate the capacity-maximizing number of free subcarriers that should be used.

引用

页码：3073 / 3076

页数：4

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