Controlling clipping probability in DMT transmission

Controlling clipping probability in DMT transmission
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DOI：
10.1109/acssc.1997.680443
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发表时间：
1997-11
期刊：
Conference Record of the Thirty-First Asilomar Conference on Signals, Systems and Computers (Cat. No.97CB36136)
影响因子：
--
通讯作者：
Alan Gatherer;Michael O. Polley
Alan Gatherer;Michael O. Polley
中科院分区：
其他
文献类型：
--
作者：
Alan Gatherer;Michael O. Polley

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离散多音信号具有比可比较的单音调制信号高得多的峰均比。因此，DMT发射器必须具有昂贵得多的模拟前端（DAC、模拟滤波器和线路驱动器），或者必须控制限幅量。我们描述了两种通用的技术裁剪控制和目前的性能比较以前的技术。
A discrete multitone signal has a much higher peak to average ratio than a comparable single tone modulation signal. Therefore a DMT transmitter has to either have a significantly more expensive analog front end (both in terms of the DAC, the analog filter and line driver) or it has to control the amount of clipping. We describe two general techniques for clipping control and present performance comparisons to previous techniques.