Patent: Method and apparatus of peak-to-average power ratio reduction, U.S. Patent No. 7,409,009; EP1,469,649; GB2,401,516
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A technique of reducing the Peak-to-Average Power Ratio (PAPR) of Multi-Carrier (MC) modulated signals in which peaks in the baseband signal that lie above a threshold amplitude are detected and used to generate a pulse sequence signal which, after shaping, is subtracted from the baseband signal to reduce its PAPR. The method is spectrally efficient, has a low degree of implementation complexity and hence it is also suitable for low-power, portable implementation. Moreover, it is compatible with existing standard-based Orthogonal Frequency Division Multiplex (OFDM) systems. As an example of the performance of the proposed scheme, the amplifier back-off requirement in a Terrestrial Digital Video Broadcast (DVB-T) system can be reduced from 12 to 6 dB, while satisfying the of out-of-band emission specifications imposed by the Federal Communications Commission (FCC) spectral mask.
||European Patent No. 1,469,649; Great Britain Patent No. 2,401,516.
||Electronics & Computer Science
|5 August 2008||Published|
||03 Feb 2009 18:31
||17 Apr 2017 18:53
|Further Information:||Google Scholar|
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