Peak-to-Average Power Ratio versus Instantaneous-to-Average Power Ratio for OFDM

被引：4
|
作者：
Liu, Qijia [1 ]
Ma, Xiaoli [1 ]
Zhou, G. Tong [1 ]
Wu, Jie [2 ]
机构：
[1] Georgia Tech, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
[2] FutureWei Technol, San Diego, CA 92126 USA
来源：
2008 42ND ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS, VOLS 1-4 | 2008年
关键词：
Orthogonal frequency division multiplexing (OFDM); peak-to-average power ratio (PAR); instantaneous-to-average power ratio (IAR); power efficiency; nonlinear distortion;
D O I：
10.1109/ACSSC.2008.5074549
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In the literature, peak-to-average power ratio (PAR) is often used as an indicator for the dynamic range of OFDM signals. PAR is an extreme value statistic and can present an overly pessimistic view of the signal. Instantaneous-to-average power ratio (IAR), on the other hand, reflects more accurately the characteristics of the sample population. In this paper, we show that depending on whether clipping is allowed to occur, PAR or IAR may be a more suitable metric.
引用
收藏
页码：938 / +
页数：3
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