BER & PAPR Reduction in OFDM System using Wavelet based OFDM Analysis

Abstract: BER & PAPR reduction in OFDM system using different types of wavelet like as Symlet, Coiflet, Daubechies etc. The Wavelet based OFDM has better spectral efficiency than the OFDM. The wavelet based OFDM does not required any Guard intervals and no pilot tones, but it is necessary in conventional OFDM. The reduction of Bit error rate & Peak to average power ratio is obtained by using complete wavelet based OFDM & distribution of output signal at transmitter respectively. All wavelet based OFDM system are required 3 dB improvement .The Order of wavelet is higher and it contain the large number of coefficients.

Keywords: Wavelets; FPGA; Orthogonal Frequency Division multiplication; Bit Error Rate ; Peak-to-Average Power Ratio.