Okorie, Patrick Ubeh, Abdullahi M.S Tekanyi, and Jacob Ogwu. 2020. “Concatenation of Coded OFDM Communications System in AWGN and Rayleigh Fading Channel”. ELEKTRIKA- Journal of Electrical Engineering 19 (3):49-53. https://doi.org/10.11113/elektrika.v19n3.208.