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Peak-to-Average Power Ratio ( PAPR ) Reduction of OFDM Signals Using a Modified PTS Technique

Orthogonal frequency division multiplexing (OFDM) has been emerging as a standard for various high data rate wireless communication systems due to several benefits, which are spectral bandwidth efficiency, robustness to frequency selective fading channels, etc. Yet one of the major drawbacks in OFDM is its high peak-to-average-power ratio (PAPR) of the transmitted signals, which even results in high out-of-band radiation and bit error rate performance degradation. In this paper, various PAPR reduction schemes has been discussed and, also a different phase factor combination which tend to achieve a lesser peak-to-average ratio compared to conventional PTS with a slight computational complexity is analyzed.