Tone Reservation Based on Fourier Transformed Sequence for PAPR Reduction in OFDM Systems
نویسندگان
چکیده
This paper presents a new technique to reduce the peak-to-average power ratio (PAPR) in OFDM system by insertion of extra semi-dummy sequence in frequency domain. The extra sequence is generated via Fourier transform of a number of the data modulated symbols. The proposed technique provides instant frequency domain process for the PAPR problem solution. For the 16PSK-OFDM system using 512 subcarrier, the new technique achieved reduction in PAPR at CCDF≤10-4 by up to 8 dB at a cost of drop in data rate by only 0.4%. With adaptive operation, the proposed PAPR technique restrains significantly the transmission power when the PAPR reduction gain is limited by 2.5 dB.
منابع مشابه
Selective Tone Reservation method for PAPR reduction in SFBC-OFDM systems
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