Abstract
This paper investigates the performance of Orthogonal Frequency Division Multiplex (OFDM) system by integrating the Discrete Fractional Fourier Transform (DFrFT). Here the total number of OFDM subcarriers are 64 where 48 of them are data carriers, and bandwidth allocated to OFDM is 20 MHz. The transmitted signals are assumed to travel through an Additive White Gaussian Noise (AWGN) channel. Simulations are conducted to investigate the Bit Error Rate (BER) performance of OFDM system as a function of energy per bit to noise power spectral density ratio E b /N 0 for both cases of conventional OFDM (FFT-OFDM) and proposed OFDM in this paper based on DFrFT (Fr-OFDM). Simulations confirm the proposed Fr-OFDM performance.
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