Benarji, B, et al. “BER Performance of OFDM System With Various OFDM Frames in AWGN, Rayleigh and Rician Fading Channel”. International Journal of Computer Sciences and Engineering, vol. 3, no. 4, Apr. 2015, pp. 6-11, https://ijcse.isroset.org/index.php/j/article/view/472.