Patent: Method and apparatus of peak-to-average power ratio reduction, U.S. Patent No. 7,409,009; EP1,469,649; GB2,401,516
Akhtman, Yosef (2008) 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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Description/Abstract
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.
| Item Type: | Other |
|---|---|
| Additional Information: | European Patent No. 1,469,649; Great Britain Patent No. 2,401,516. |
| Divisions: | Faculty of Physical and Applied Science > Electronics and Computer Science |
| Item ID: | 267079 |
| Date Deposited: | 03 Feb 2009 18:31 |
| Last Modified: | 01 Mar 2012 11:47 |
| Contributors: | Akhtman, Yosef (Author) |
| Date: | 5 August 2008 |
| Additional Information: | European Patent No. 1,469,649; Great Britain Patent No. 2,401,516. |
| Status: | Published |
| Further Information: | Google Scholar |
| URI: | http://eprints.soton.ac.uk/id/eprint/267079 |
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