PAPR Analysis of FFT and Wavelet based OFDM Systems
نویسندگان
چکیده
OFDM is an efficient modulation technique for wideband digital communication. A major drawback of OFDM modulation is the high Peak-to-Average Power Ratio (PAPR) of the transmitted signal which limits its transmission range of communication. As PAPR increases it reduces the average power which affect on total power consumption of Transmitter. Normally, OFDM is implemented using FFT. In recent years it is it is observed that, OFDM can be implemented using orthogonal wavelets. All the benefits of FFT-OFDM can be achieved, if we replace traditional sinusoid carriers with suitable wavelets. SLM & PTS techniques for PAPR reduction are applied on the FFT & Wavelet based OFDM.
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