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2013 (Vol. 5, Issue: 11)
Article Information:

Peak Power Reduction in OFDM Systems for Multicarrier Transmission

Sabhyata Uppal and Sanjay Sharma
Corresponding Author:  Sabhyata Uppal 

Key words:  Amplitude clipping, partial transmit sequence, peak to average power reduction, , , ,
Vol. 5 , (11): 3182-3185
Submitted Accepted Published
October 03, 2012 December 10, 2012 April 05, 2013

The transmit signals in an OFDM system can have high peak values in the time domain since many subcarrier components are added via an IFFT operation. Therefore, OFDM systems are known to have a high PAPR (Peak-to-Average Power Ratio), compared with single-carrier systems. In fact, the high PAPR is one of the most detrimental aspects in the OFDM system, as it decreases the SQNR (Signal-to-Quantization Noise Ratio) of ADC (Analog-to-Digital Converter) and DAC (Digital-to-Analog Converter) while degrading the efficiency of the power amplifier in the transmitter. This study describes some of the important PAPR reduction techniques for multicarrier transmission including amplitude clipping and filtering, coding and partial transmit.
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  Cite this Reference:
Sabhyata Uppal and Sanjay Sharma, 2013. Peak Power Reduction in OFDM Systems for Multicarrier Transmission.  Research Journal of Applied Sciences, Engineering and Technology, 5(11): 3182-3185.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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