Reduction of Peak-to-Average Power Ratio in OFDM System using SCR based Tone Reservation Technique

Abstract

In 4G technology, the orthogonal frequency division multiplexing is used for multicarrier transmission for obtaining high speed data. As the OFDM system have many sub-carriers, so that the amplitude of the signal results in producing high peaks. A high peak-to-average power ratio is considered to be a main crisis of OFDM scheme. So here we use the methodology called clipping is done on the high peak values. In my paper, signal-to-clipping ratio (SCR) based tone reservation (TR) scheme is developed to decrease the PAPR. Moreover, the CCDF performance analysis for different iteration and different modulation schemes are measured.