Simulation of power amplifier adjacent-channel power ratio for digital wireless communication systems

2002 ◽  
Author(s):  
J.F. Sevic ◽  
J. Staudinger
Keyword(s):  
Wireless Communication ◽  
Power Amplifier ◽  
Communication Systems ◽  
Wireless Communication Systems ◽  
Power Ratio ◽  
Channel Power ◽  
Adjacent Channel ◽  
Adjacent Channel Power Ratio

PAPR Reduction in OFDM

2018 ◽  
Vol 6 (6) ◽  
pp. 221
Author(s):  
Ritu Mor
Keyword(s):  
Wireless Communication ◽  
Power Amplifier ◽  
Communication Systems ◽  
Fourier Transforms ◽  
Average Power ◽  
Papr Reduction ◽  
Wireless Communication Systems ◽  
Power Ratio ◽  
High Complexity ◽  
Papr Performance

The term OFDM is a special type of FDM which has very vast application in the field of wired and wireless communication systems. In this paper we are discussing about the main problem of OFDM i.e. Peak to Average Power Ratio (PAPR) which affects the performance and efficiency of Power Amplifier. Partial Transmit Sequence (PTS) is an attractive scheme for PAPR reduction without distortion, but to obtain preferable PAPR performance it needs many Inverse Fast Fourier Transforms (IFFTs) which results in high complexity. In this paper, a single IFFT block is implanted in to PTS technique for reduction of PAPR in OFDM. The scheme is very efficient and avoids the use of any extra IFFTs as was done in PAPR reduction by ordinary PTS technique.

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